STRUCTURAL DYNAMICS RESEARCH CORP /OH/
11-K, 1998-06-25
PREPACKAGED SOFTWARE
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               SECURITIES AND EXCHANGE COMMISSION
                    WASHINGTON, D.C. 20549

               --------------------------------

                           FORM 11-K

               --------------------------------


(MARK ONE)

X  Annual Report pursuant to Section 15(d) of the Securities
   Exchange Act of 1934 for the fiscal year ended December 31, 1997

   Transition Report pursuant to Section 15(d) of the Securities
   Exchange Act of 1934 for the transition period from ______ to
   ______.


        STRUCTURAL DYNAMICS RESEARCH CORPORATION TAX DEFERRED
                   CAPITAL ACCUMULATION PLAN
                   (Full title of the plan)

            STRUCTURAL DYNAMICS RESEARCH CORPORATION
   (Name of issuer of the securities held pursuant to the plan)

             2000 Eastman Drive, Milford, Ohio 45150
             (Address of principal executive office)

       Structural Dynamics Research Corporation
         Tax Deferred Capital Accumulation Plan

                 Financial Statements and
                   Additional Information
               December 31, 1997 and 1996
                                       

<PAGE>


Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Table of Contents to Financial Statements and Additional Information




                                                            Page

Report of Independent Accountants                             1

Financial Statements:

Statement of Net Assets Available for Plan Benefits by Fund 2-3

Statement of Changes in Net Assets Available for Plan 
Benefits                                                    4-5

  Notes to Financial Statements                            6-10


Additional Information: *

  Schedule I - Schedule of Assets Held for Investment Purposes11

  Schedule II - Schedule of Reportable Transactions          12




* Other   schedules  required  by  Section  2520.103-10   of   the
  Department  of  Labor Rules and Regulations  for  Reporting  and
  Disclosure  under ERISA have been omitted because they  are  not
  applicable.

                       REPORT OF INDEPENDENT ACCOUNTANTS



     To the Participants and Administrator
        of the Structural Dynamics Research Corporation
        Tax Deferred Capital Accumulation Plan


     In  our  opinion, the accompanying statements of  net  assets
     available   for  plan  benefits  by  fund  and  the   related
     statements  of  changes  in  net assets  available  for  plan
     benefits  present fairly, in all material respects,  the  net
     assets available for plan benefits of the Structural Dynamics
     Research  Corporation Tax Deferred Capital Accumulation  Plan
     (the  "Plan") at December 31, 1997 and 1996, and the  changes
     in  net assets available for plan benefits for the years then
     ended,  in  conformity  with  generally  accepted  accounting
     principles.     These    financial   statements    are    the
     responsibility  of the Plan's management; our  responsibility
     is  to express an opinion on these financial statements based
     on  our audits.   We conducted our audits of these statements
     in  accordance  with  generally accepted  auditing  standards
     which  require that we plan and perform the audits to  obtain
     reasonable  assurance about whether the financial  statements
     are   free  of  material  misstatement.   An  audit  includes
     examining,  on a test basis, evidence supporting the  amounts
     and  disclosures in the financial statements,  assessing  the
     accounting principles used and significant estimates made  by
     management,  and  evaluating the overall financial  statement
     presentation.    We  believe  that  our  audits   provide   a
     reasonable basis for the opinion expressed above.

     Our  audits  were  performed for the purpose  of  forming  an
     opinion  on the basic financial statements taken as a  whole.
     The additional information included in Schedules I and II  is
     presented for purposes of additional analysis and  is  not  a
     required  part  of  the  basic financial  statements  but  is
     additional   information  required  by   ERISA.    The   Fund
     Information in the statement of net assets available for plan
     benefits and the statement of changes in net assets available
     for  plan  benefits is presented for purposes  of  additional
     analysis rather than to present the net assets available  for
     plan  benefits and changes in net assets available  for  plan
     benefits  of  each fund.  Schedules I and  II  and  the  Fund
     Information  have  been subjected to the auditing  procedures
     applied in the audits of the basic financial statements  and,
     in our opinion, are fairly stated in all material respects in
     relation to the basic financial statements taken as a whole.

     /s/ Price Waterhouse LLP
     PRICE WATERHOUSE LLP
     Cincinnati, Ohio
     May 29, 1998

                                       1


<PAGE>
<TABLE>

Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Notes to Financial Statements
(Amounts in thousands)



                                December 31, 1997
<CAPTION>
                                                                              Small
                  Company  Equity  Spectrum          Stable  Int'l.  New      Cap   Science  Int'l  Spectrum
                  Stock    Income  Growth   Balanced Value   Stock   Horizons Value & Techn. Bond   Income   Cash  Loan
                  Fund     Fund    Fund     Fund     Fund    Fund    Fund     Fund  Fund     Fund   Fund     Fund  Fund  Total
<S>              <C>       <C>      <C>    <C>      <C>     <C>    <C>       <C>      <C>     <C>   <C>       <C>   <C>   <C>
Assets:                                                                                          
Investments, at                                                                                  
fair value (Note
2):
Shares of                                                                                        
Registered                                                                                       
 Investment Co.
 T. Rowe Price   $    --   $15,761  $7,726 $6,585   $7,315  $1,873 $5,309    $4,061   $4,970  $327  $1,590    $--   $ --  $55,517

 Securities of                                                                                  
  participating 
  employer        22,056        --      --     --       --      --     --        --       --    --      --     --     --   22,056

 Cash                 --        --      --     --       --      --     --        --       --    --      --      2     --        2

 Participant loans    --        --      --     --       --      --     --        --       --    --      --     --    962      962
                  ------    ------   -----  -----     -----   ------ -----    ------    -----  ----  ------   ----  -----  ------
  Total
    investments   22,056    15,761   7,726  6,585    7,315   1,873  5,309     4,061    4,970   327   1,590      2    962   78,537
                  ------   -------   -----  -----    -----  -------  -----   ------   ------   ----  ------   ----  ----   ------
Receivables:                                                                                     
                                                                                                 
 Employer      
  contributions      577        --      --     --       --      --     --        --       --    --      --     --     --      577

 Participant  
  contributions       73       125      80     67       55      42     74        68       98    10      22     --     --      714
                   -----      ----    ----   -----    -----   ----   ----     -----     ----   ----     ---   ----   -----   -----
                
Total receivables    650       125      80     67       55      42     74        68       98    10      22     --     --    1,291
                   -----     -----    ----   -----    -----   ----   -----    -----     ----   ----     ----  ----   -----   -----
Assets available 
 for plan 
  benefits       $22,706   $15,886  $7,806 $6,652   $7,370  $1,915 $5,383    $4,129   $5,068  $337  $1,612    $ 2   $962  $79,828
                  ======    ======   =====  =====    =====   =====  =====     =====    =====  ====   ======  ====   =====  ======

</TABLE>

   The accompanying notes are an integral part
 of these financial statements.

<TABLE>

Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Statement  of  Net  Assets  Available  for  Plan  Benefits  by  Fund
   (continued)
(Amounts in thousands)

                                December 31, 1996

<CAPTION>
                  Company  Equity  Spectrum          Stable  Int'l.  New      Cap   Science  Int'l  Spectrum
                  Stock    Income  Growth   Balanced Value   Stock   Horizons Value & Techn. Bond   Income   Cash  Loan
                  Fund     Fund    Fund     Fund     Fund    Fund    Fund     Fund  Fund     Fund   Fund     Fund  Fund  Total
<S>             <C>        <C>    <C>     <C>       <C>     <C>     <C>      <C>     <C>     <C>   <C>        <C> <C>  <C>

Assets:                                                                                          
Investments, at                                                                                  
fair value (Note
2):
Shares of                                                                                        
Registered
 Investment Co.
  T. Rowe Price $    --    $9,398 $5,850  $4,981    $7,309  $1,165  $3,292   $2,191  $3,715  $209  $809       $-- $ --  $38,919

  Securities of                                                                                  
  participating 
   employer      18,266        --     --      --        --      --      --       --      --    --    --        --   --   18,266

   Cash              --        --     --      --        --      --      --       --      --    --    --        20   --       20

   Participant
    loans            --        --     --      --        --      --      --       --      --    --    --        --  722      722
                 ------     ------  ----   ------    ------   -----  -----    ------   -----  ----  ----    ----- -----   -----


Total 
  investments    18,266     9,398  5,850   4,981     7,309   1,165   3,292    2,191   3,715   209   809        20  722   57,927
                 ------    ------  -----   -----     -----   -----   -----    -----   -----   ----  ---      ----  ---   ------
                                                                                                 
Receivables:                                                                                     
                                                                                                 
 Employer       
  contributions     453        --     --      --        --      --      --       --      --    --    --        --   --      453

 Participant   
  contributions      74        84     64      52        58      23      62       34      77     6    16        --   --      550
                 ------    ------   ----   ------    -----    -----   ----     ----    ----  ----   ---      ----  ---     -----
 Total       
  receivables       527        84     64      52        58      23      62       34      77     6    16        --   --    1,003
                 -------   ------   ----   ------    -----    -----   ----      ----    ----  ----   ---     ----  ---    -----
Assets available 
for plan 
  benefits      $18,793    $9,482 $5,914  $5,033    $7,367  $1,188  $3,354   $2,225  $3,792  $215  $825       $20 $722  $58,930 
                 ======    ======  ====== ======    ======   =====   =====    =====   =====  ====   ====      ===   ==  =======

</TABLE>
                                        

   The accompanying notes are an integral part
 of these financial statements.

<PAGE>

<TABLE>

Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Changes in Net Assets Available For Plan Benefits
(Amounts in thousands)

                                December 31, 1997

<CAPTION>
                  Company  Equity  Spectrum          Stable  Int'l.  New      Cap   Science  Int'l  Spectrum
                  Stock    Income  Growth   Balanced Value   Stock   Horizons Value & Techn. Bond   Income   Cash  Loan
                  Fund     Fund    Fund     Fund     Fund    Fund    Fund     Fund  Fund     Fund   Fund     Fund  Fund  Total
<S>             <C>       <C>     <C>    <C>        <C>     <C>     <C>      <C>     <C>     <C>  <C>         <C>  <C>  <C>

                                                                                               
Beginning 
Balance        
01/01/97        $18,793   $ 9,482 $5,914 $5,033     $7,367  $1,188  $3,354   $2,225  $3,792  $215 $  825      $ 20 $722 $58,930

Additions:

  Investment                                                                                   
    income:

  Net
(depreciation)
appreciation in
fair value
 of investments   2,770     1,648    293    741         --    (104)    355      529    (409)  (21)    47        --   --   5,849

  Interest           --        --     --     --         --      --      --       --      --    --     --        --   71      71
  Dividends          --     1,486    783    243        453     100     129      255     470    15     94        --   --   4,028
                  -----     -----  -----   -----      -----    ----    ----     ----   -----   ---   ----     ----  ---   -----
                  2,770     3,134  1,076    984        453      (4)    484      784      61    (6)   141        --   71   9,948
                  -----    ------  ------   ----       ----    ----    ----     ----   -----   ---   ----     ----  ---   ------
Contributions:

   Participant      783     1,160    848    663        634     370     791      581   1,020   103    226        --   --   7,179
   Employer       1,921        --     --     --         --      --      --      --       --    --     --        --   --   1,921


   Rollovers         38     2,096    208    373        364     322   1,067      242      122    7    334        --   42   5,215
                  -----    ------   ----   -----      ----    -----  ------    ----     ----  ----  ----
                  2,742     3,256  1,056  1,036        998     692   1,858      823    1,142  110    560             42  14,315
                  -----    ------  -----  -------     ----    -----  -----     ----    -----  ----  -----     ----  --- ------
  Net additions   5,512     6,390  2,132  2,020      1,451     688   2,342    1,607    1,203  104    701        --  113  24,263
                  -----    ------  -----  -------    -----    -----  -----    -----    -----  ----  -----     ----  ---  ------
Deductions:
                                                                                               
  Benefits     
  paid to     
  participants     (757)     (557)  (302)  (256)      (763)    (93)   (165)    (235)    (172)  (4)   (61)       --   --  (3,365)
   Transfers       (842)      571     62   (145)      (685)    132    (148)     532      245   22    147       (18) 127      --
                  ------   ------   -----  ----      -----     ----   -----    -----   -----  ----  -----    ----- ---  ------
  Net     
   Deductions    (1,599)       14   (240)  (401)    (1,448)     39    (313)     297       73   18     86       (18) 127  (3,365)
                 -------   ------   ----   ----      -----     ----   -----    -----   -----  ----- ------   ----- ---  ------
  Net     
  (decrease)       
  increase        3,913     6,404  1,892  1,619          3     727   2,029    1,904    1,276  122    787       (18) 240  20,898
                 -------   ------  -----  -----       ----     ----  -----   ------    -----  ----  ----      ---- ----  -------
Net assets                                                                                     
available for
benefits:
                                                                                               
Ending Balance 
12/31/97        $22,706   $15,886 $7,806 $6,652     $7,370  $1,915  $5,383   $4,129   $5,068 $337 $1,612      $  2 $962 $79,828
                 ======    ======  =====  =====      =====   =====  ======   ======   ======  ===  =====     =====  ===  =======
                                        
</TABLE>
                                        
The accompanying notes are an integral part 
of these financial statements.

<PAGE>

<TABLE>


Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Changes in Net Assets Available For Plan Benefits (continued)
(Amounts in thousands)


                                December 31, 1996

<CAPTION>
                                                                       Small
           Company  Equity  Spectrum          Stable  Int'l.  New      Cap    Science   Int'l  Spectrum            Fixed
            Stock   Income  Growth  Balanced Value   Stock   Horizons Value  & Techn.  Bond   Income  Cash  Loan  Interest
            Fund    Fund    Fund    Fund     Fund    Fund    Fund     Fund   Fund      Fund   Fund    Fund  Fund  Fund    Total
<S>         <C>     <C>     <C>     <C>     <C>    <C>     <C>      <C>    <C>        <C>    <C>    <C>   <C>   <C>     <C>
Beginning
Balance 
01/01/96    $27,630 $6,983  $4,425  $5,685  $  223 $    5  $  12    $  8   $   18     $  1   $  4   $  3  $284  $ 8,375 $53,656
Additions:

Investment
 Income:

Net 
(depreciation)
appreciation
in fair 
value of 
investments  (7,946)   914     535     441      --     61      39    213      (58)       3     (3)    --    --       --  (5,801)
 Interest        --     --      --      --      --     --      --     --       --       --     --     --    45       --      45
 Dividends       --    580     398     224     395     28     251     96      346        8     42     --    --       --   2,368
             -------  -----   ----    -----   ----   ----   -----    ----     ----    ----    ----   ----  ----    ----- --------
             (7,946) 1,494     933     665     395     89     290    309      288       11     39     --    45       --  (3,388)

Contributions:

 Participant    856    947     836     663     755    291     623    363      912       76    216     17    --       --   6,555
 Employer     2,176     --      --      --      --     --      --     --       --       --     --     --    --       --   2,176
 Rollovers      101    310     292      71     417    134     547     280     541       32    121     --    59       --   2,905
            --------  -----   ----    -----   ----   ----   -----   ----     ----     ----    ----   ----  ----    -----  ------
              3,133  1,257   1,128     734   1,172    425   1,170     643   1,453      108    337     17    59       --  11,636

Net Aditions (4,813) 2,751   2,061   1,399   1,567    514   1,460     952   1,741      119    376     17   104       --   8,248

Deductions:

 Benefits 
 paid
 to partici-
 pants       (1,288)  (329)   (393)   (333)   (546)   (11)    (53)    (13)     --       --     (1)    --    --       --  (2,967)
 Investment
 expenses        (2)    (1)     (1)     (1)     (1)    --      --      (1)     --       --     --     --    --       --      (7)
 Transfers   (2,734)    78    (178) (1,717)  6,124    680   1,935    1,279  2,033       95    446     --   334   (8,375)     --
             -------  -----   ----   -----    ----   ----   -----     ----   ----     ----    ----  ----  ----    -----  --------

Net 
Deductions   (4,024)  (252)   (572) (2,051)  5,577    669   1,882    1,265  2,033       95    445     --   334   (8,375) (2,974)

Net 
(decrease)
  increase   (8,837) 2,499   1,489    (652)  7,144  1,183   3,342    2,217  3,774      214    821     17   438   (8,375) (5,274)

Net assets
available
for benefits:

Ending 
Balance 
12/31/96    $18,793 $9,482  $5,914  $5,033  $7,367 $1,188  $3,354   $2,225 $3,792     $215   $825   $ 20  $772  $    -- $58,930
            ======= ======  ======   ====== ====== ======  ======   ====== ======     ====  =====    ===  ====  =======  =======

</TABLE>
<PAGE>

1) Description of Plan


   The  following description of the Structural Dynamics  Research
   Corporation  Tax  Deferred  Capital  Accumulation   Plan   (the
   "Plan")   provides  only  general  information.    Participants
   should  refer  to  the  Plan  agreement  for  a  more  complete
   description of the Plan's provisions.

      (a)  General

            The  Plan is a defined contribution plan covering  all
      salaried  employees of the domestic divisions of  Structural
      Dynamics  Research  Corporation  (the  Company).     It   is
      subject to the provisions of the Employee Retirement  Income
      Security Act of 1974 (ERISA).

      (b)  Contributions

            A  participant may make contributions to the  Plan  by
      authorizing  a  reduction of their compensation  (before-tax
      contribution) of at least 1% up to a maximum  of  15%.   The
      Company  will reduce the participant's compensation  by  the
      authorized  percentage, subject to limits specified  by  the
      Plan.   A  participant may also make voluntary contributions
      to  the  plan of rollover amounts from other benefit  plans.
      The  Company  may provide a matching contribution  equal  to
      50%    of    the   participant's   contribution   (excluding
      rollovers),  up  to  6%  of the participant's  compensation.
      The  Company's matching contribution, if any, may  take  the
      form  of  either Company Common Stock or cash.  Participants
      other  than  officers can redirect the Company's accumulated
      matching contribution into other investment options  offered
      under  the Plan.  Annually, the Board of Directors  vote  on
      the  Company's  quarterly matching contribution  amount,  if
      any.

            The Company may elect to make additional discretionary
      contributions.   Such contributions shall  be  allocated  to
      the  account of each participant in an amount equal  to  the
      ratio  of  the employee's annual salary to the total  annual
      salaries  paid  to  all participants.    Participants  other
      than  officers  can  redirect  the  Company's  discretionary
      contributions  into other investment options  offered  under
      the  Plan.  In 1997 and 1996, no discretionary contributions
      were made.

      (c)  Participant Accounts

             Each  participant's  account  is  credited  with  the
      participant's  contribution and allocation of the  Company's
      contribution   and   Plan  earnings.    Earnings   of   each
      investment  fund  are allocated among the  accounts  of  all
      participants  in  each fund in the ratio each  participant's
      account bears to the total account balance.  The benefit  to
      which  a participant is entitled is the benefit that can  be
      provided from the participant's vested account.



                                       6

                                       
Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Notes to Financial Statements (continued)
(Amounts in thousands)

      (d)  Vesting

            Participants are immediately vested in their voluntary
      contributions  plus actual earnings thereon.    One  hundred
      percent  vesting in the Company contributions  occurs  after
      three  years of continuous service. Forfeitures  of  Company
      contributions  by  participants when they  terminate  before
      becoming   vested   are  used  to  reduce   future   Company
      contributions.   At  December 31, 1997 and  1996,  forfeited
      nonvested  accounts  totaled  $36  and  $143,  respectively.
      During  1997  and  1996,  employer  contributions  were  not
      reduced from forfeited nonvested accounts.
      (e)  Investment Options

             The   participants  direct  employee   and   employer
      contributions in any of the following funds:

      --    Company Stock Fund
            Invests in the Company's Common Stock.
      --    Equity Income Fund
           Portfolio of the common stocks of major
            corporations and cash reserves.
      --    Balanced Fund
            Portfolio of U.S. Government securities, the
            common stocks of major corporations and cash reserves.
      --  Stable Value Fund
          Portfolio  of investment contracts issued by  insurance
          companies and banks.
      --  International Stock Fund
          Portfolio of common stocks of major foreign companies.
      --  New Horizons Fund
          Portfolio of common stocks of growing companies.
      --  Small-Cap Value Fund
          Portfolio   of  common  stocks  of  undervalued   small
          companies.
      --  Science and Technology Fund
          Portfolio  of  common  stocks  of  companies   in   the
          computer,   electronics,  biotechnology  and   chemical
          industries.
      --  International Bond Fund
          Portfolio  of  government and  corporate  bonds  issued
           overseas.
      --  Spectrum Income Fund
          Portfolio  of  mutual  funds  including  domestic   and
          international  bond  funds,  money  funds  and  income-
           oriented stock funds.
      --  Spectrum Growth Fund
          Portfolio  of  mutual  funds  including  domestic   and
          international stock funds.
        



                                       7
        
                                       
Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Notes to Financial Statements (continued)
(Amounts in thousands)
     
      (f)  Payment of Benefits

             Participants'   accounts   are   distributable   upon
      termination  of  employment.   Participants  may  also  make
      withdrawals   in   the  case  of  financial   hardship   (as
      determined by the Plan Administrator).

            Amounts  allocated  to accounts of  persons  who  have
      withdrawn  from participation in the earnings and operations
      of  the  Plan were approximately $97 and $0 at December  31,
      1997  and 1996,  respectively, and have been included  as  a
      component of assets available for plan benefits.   The  Plan
      is  required  to file a Form 5500 with the Internal  Revenue
      Service which reflects benefits payable as a liability  and,
      accordingly,  a  deduction from assets  available  for  plan
      benefits.

   (g)Loans

      The  Plan allows participants to borrow a minimum of  $1  up
      to  a  maximum  equal to the lesser of $50 or 50%  of  their
      interest  in  all funds other than the Company  Stock  Fund,
      within  certain limitations and upon approval  by  the  Plan
      Administrator. Loan transactions are treated as  a  transfer
      to  (from) the investment options of the Plan from (to)  the
      Loan  Fund.   Loan terms range from 1 - 5 years or up to  15
      years  for  the purchase of a primary residence.  The  loans
      are  secured by the balance in the participant's account and
      bear interest at 2% over the prime rate on the first day  of
      the  month  preceding the effective date of the  loan.   The
      interest  rate  is  fixed for the entire  repayment  period.
      Principal  and  interest  is paid  ratably  through  monthly
      payroll deductions.
 
   (h)Trust Agreement
      
      The  trustee of the plan is T. Rowe Price Trust Company  (T.
      Rowe).  T. Rowe invests and holds all contributions made  by
      the  Plan Administrator and allocates the amounts among  the
      funds as directed by the individual participants.

(2)   Summary of Significant Accounting Policies

      (a)  Basis of Presentation

      The  accompanying financial statements of the Plan have been
      prepared on the accrual basis of accounting.

   (b)Use of Estimates
      
      The  preparation of financial statements in conformity  with
      generally    accepted    accounting   principles    requires
      management  to  make estimates and assumptions  that  affect
      the   reported   amounts  of  assets  and  liabilities   and
      disclosure of contingent assets and liabilities at the  date
      of  the  financial  statements and the reported  amounts  of
      revenues  and expenses during the reporting period.   Actual
      results could differ from those estimates.


                                       8
Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Notes to Financial Statements (continued)
(Amounts in thousands)

      (c)  Investments and Income Recognition

            Money  market  accounts  are  valued  at  cost,  which
      approximates   fair  value.    All  other  investments   are
      recorded  at  fair value based on quotations  obtained  from
      national  securities exchanges as of the end  of  the  year.
      Participant  loans  are  recorded at  the  unpaid  principal
      balances of the individual loans.

            Purchases and sales of investments are recorded on the
      trade  date.    Gains or losses on the sale  of  investments
      are   calculated  on  the  specific  identification  method.
      Interest   income   is  recorded  on  the   accrual   basis.
      Dividends are recorded on the ex-dividend date.

      (d)  Contributions

            Employee  contributions are recorded in the period  in
      which  the  Company makes payroll deductions from  the  Plan
      participants' earnings.

      (e)  Expenses

            Certain  administrative fees of the Plan are  paid  by
      the  Company.   Investment expenses are paid by the Plan and
      are deducted from investment income.

      (f)  Payment of Benefits

           Benefits are recorded when paid.

      (g)  Reclassifications

            Certain amounts in the 1996 financial statements  have
      been reclassified to conform with the 1997 presentation.


(3)   Benefit Obligations

   Benefit  obligations  for  persons  who  have  withdrawn   from
   participation in the Plan are as follows:

                                          December 31,
                                      1997            1996
          Company Stock Fund         $   1       $  --
          Equity Income Fund            22          --
          Balanced Fund                 --          --
          Stable Value Fund             --          --
          International Stock Fund      18          --
          New Horizons Fund             19          --
          Small-Cap Value Fund          --          --
          Science   &  Technology Fund  18          --
          International  Bond Fund      --          --             
          Spectrum Income Fund          19          --
          Spectrum Growth Fund          --          --
                                     -----       -----
                                      $ 97         --
                                     =====       =====

      These  amounts  are reflected as liabilities in  the  Plan's
      Form 5500.
                                       
                                       9

Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Notes to Financial Statements (continued)
(Amounts in thousands)

 (4)  Investments

   During   1997  and  1996,  the  Plan's  investments  (including
   investments   bought,   sold,  and  held   during   the   year)
   appreciated/(depreciated)  in value  by  $5,849  and  $(5,801),
   respectively, as follows:

                                               December 31,
                                               1997     1996
  Securities of participating employer    $ 2,770     ($7,946)
  Mutual funds                             3,079        2,145
    Net change in fair value              $ 5,849     ($5,801)
                                       
(5)Plan Termination

   Although it has not expressed any intent to do so, the  Company
   has  the  right under the Plan to discontinue its contributions
   at   any  time  and  to  terminate  the  Plan  subject  to  the
   provisions  of  ERISA.    In  the event  of  Plan  termination,
   participants will become 100% vested in their accounts.

(6)Tax Status

   The  Plan obtained its latest determination letter on  June  3,
   1996,  in  which  the  Internal  Revenue  Service  advised  the
   Company  that  the  Plan, including the amendments  adopted  on
   December  31, 1993 and October 1, 1995, was in compliance  with
   the  applicable requirements of the Internal Revenue  Code  and
   its  underlying  trust  is  tax  exempt  as  of  the  financial
   statement date.

                                       
                                      10



Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Additional Information
Schedule of Assets Held For Investment Purposes  - Form 5500 Item 27
(a)
Schedule I
                                       


                                        Cost        Fair Value
 * SDRC Common Stock                $13,716,818      $22,056,285
                                                      
 * T. Rowe Price:                                         
      Equity Income Fund             13,231,929       15,761,036
      Spectrum Growth Fund            7,079,070        7,725,855
      Balanced Fund                   5,498,632        6,585,026
      Stable Value Fund               7,315,029        7,315,029
      International Stock Fund        1,936,300        1,873,306
      New Horizons Fund               4,968,666        5,308,892
      Small-Cap Value Fund            3,420,559        4,060,537
      Science and Technology Fund     5,470,837        4,969,629
      International Bond Fund           344,579          327,294
      Spectrum Income Fund            1,545,542        1,590,344
                                                      
               Cash Fund                  1,543            1,543
                                                        
       Participants' Loans              962,298          962,298
                                    ------------       ---------
                    Total           $65,491,802      $78,537,074
                                    ===========       ==========

*  Denotes party-in-interest


<PAGE>
<TABLE>

Structural Dynamics Research Corporation
Tax Deferred Capital Accumulation Plan
Additional Information
Schedule of Reportable Transactions - Form 5500 Item 27 (d)
Schedule II

<CAPTION>
                                                                          Current       
Identity of      Description   Number                          Cost of    value on      
Party involved        of         of     Purchase    Selling     asset    transac-    Net gain
                  investment  transac-  price       price       sold     tion date
                                tions
<S>              <C>          <C>       <C>         <C>        <C>       <C>         <C>
T. Rowe Price                                                                       

   Company Stock   Stock       73       4,308,958                        4,308,958 
   Fund            Fund       119                   3,290,048  2,166,444 3,290,048   1,123,604

   Equity Income   Mutual     106       5,750,471                         5,750,471          
   Fund            Fund        72                   1,035,330    887,687  1,035,330    147,643

   Stable Value    Mutual      78       3,027,984                         3,027,984          
   Fund            Fund       103                   3,021,898  3,021,898  3,021,898          0


</TABLE>

<PAGE>
Pursuant to the requirements of the Securities Exchange Act of 1934,
the Plan Administrators have duly caused this annual report to be
signed on behalf of the undersigned hereunto duly authorized.

STRUCTURAL DYNAMICS RESEARCH CORPORATION
TAX DEFERRED CAPITAL ACCUMULATION PLAN



By: /s/ Bryan M. Valentine         Date:  6/18/98
    Bryan M. Valentine 


By: /s/ Jeffrey J. Vorholt         Date:  6/18/98
    Jeffrey J. Vorholt
    Vice President, Chief Financial Officer and Treasurer




          CONSENT OF INDEPENDENT ACCOUNTANTS



We  hereby  consent to the incorporation by  reference  in  the
Registration Statement on  Form  S-8  (No.
33-22136)  of Structural Dynamics Research Corporation  of  our
report dated May 29, 1998 appearing on page 1  of
the   Annual   Report  of  the  Structural  Dynamics   Research
Corporation Tax Deferred Capital Accumulation Plan on Form 11-K
for the year ended December 31, 1997.



/s/ Price Waterhouse LLP

PRICE WATERHOUSE LLP
Cincinnati, Ohio
June 23, 1998




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