SMACTHP output

 

Click OK and then Smacthp will run and then the main output dataset (smacthp.dv6) will open in a text window with the following information:

Win32 Fortran Unit 4 Input Format

 Program: C:\msoft\smacthp.exe

 Smac Animation (mGraphics) v2008 (Date Stamp:07/01/08 11:30:32 pm  ) ©McHenry Software,Inc.,Cary,NC USA

 Program run on 07/01/08 11:40:23 pm   mchenryversion 2008.06.23

 SMAC file: C

 TAPE HEADER FILE:

 Title1: RICSAC test#2, 74 Chevette v 74 Pinto                                           

 Title2: start w/Crash3 results                                                         

 Based on User input EndTime-STart Time, Size Arrays set= 10010

 User Option set to process for Veh No. 1

   Inputs: Tstart=   0.000 Tend=  10.000

 Accelerometer@ X=   10.00    Y=   25.00 (inches)

  Delta-V integration times will be automatically determined

   Delta-V integ Start time @   0.190

                   End time @   0.302

0         DELTA V CALCULATIONS:

            TSTART         =   0.190 SEC

            TEND           =   0.302 SEC

                Max Accel@T=   0.279  @Loc1=   0.279 sec.

                      ACCcg=   14.72  @Loc1=   18.15 gs

                      AXXcg=  -13.87  @Loc1=  -17.23 gs

                      AYYcg=    4.95  @Loc1=    5.70 gs

                  @ anglecg=  -19.64  @Loc1=  -18.29 deg

          DeltaV-X      @CG=    0.00  @Loc1=    0.00 MPH

          DeltaV-Y      @CG=    0.00  @Loc1=    0.00 MPH

          DeltaV-RES    @CG=    0.00  @Loc1=    0.00 MPH

          DeltaV-ACC    @CG=    0.00  @Loc1=    0.00 MPH

 

          PLEASE NOTE:

            DeltaV-RES =SQRT of Sum of Squares of DeltaV-X & DeltaV-Y

            DeltaV-ACC =DeltaV determined by Integration of Resultant Accel

 

 

 USE Tools->smacTHP Charts to plot time histories of Velocities and Accelerations

 For smacthp output datasets see the VIEW menu

 Select a m-smac file from the Windows menu to return to normal VIEW menu

 CSV (comma delimited dataset, you can also open with your spreadsheet program):

 smacthp.csv - acceleration, velocities for CG and accel location 1

 Outputs in smacthp.csv:

  Variable               Description                          Units

    T                    Run TIME                             sec

  Axx,Ayy,Acc            CG X,Y & Resultant acceleration      g-units

  AXX1,AYY1,ACC1         Loc1 X,Y & Res acceleration          g-units

  DLVCCGX,DLVCGY,DLVCGR  CG X,Y & Res Speed change            MPH

  DLVX1,DLVY1,DLVA1      Loc1 X,Y & Res Speed change          MPH

  X,Y,PSI                CG POSITION & Orientation            ft ft Deg

  U,V,PSID               CG Linear and Angular Velocities     MPHMPHdeg/sec

  UX1,VX1                Loc1 VF Linear Velocities            MPHMPH

  DU,DV,DPSID            CG Linear & Angular accelerations    g-units,deg/sec**2

  UAP1,VAP1              Loc1 SF Linear Velocities            MPH

  UAP,VAP                CG SF Linear Velocities              MPH

  ForceDir1              Loc1 Force Direction=Atan2(Ayy1/Axx1)+/-180 Deg

  ForceDir               CG Force Direction=Atan2(Ayy/Axx)+/-180 Deg

 

                  NOTE:  SF=Space Fixed Frame of Reference

                         VF=Vehicle Fixed Frame of Reference

                         CG=Center of Gravity

                         Loc1=Accelerometer Location 1

 

If you click on the View menu while the smacthp.dv6 output dataset is active you will note some different datasets. These datasets are the following:

•    smacthp.dv6 - the main summary page

•    smacthp.dv8 - time history of the integrated delta-V components at the CG and Loc#1 (This procedure referred to as "Test method" in the subject paper), and based on the resultant acceleration (as done in SMAC) for the CG and Loc #1

•    smacthp.dv9 - some additional methods for integration of the acceleration time-histories by SMAC: Simpsons 3/8 rule (SIMPS), Simpson's 1/3 rule (INTEGS) and the Trapezoid method (TPZOD).

 

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Making Charts of SMACTHP