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整车模型是通过修改template模板,之后组建的。
仿真的时候出现以下提示:
Setting up the vehicle assembly for the FOUR_POST_TESTRIG...
Reading in property files...
Reading of property files completed.
Setup of the vehicle assembly is completed.
Simulation is beginning...
Starting analysis #1 of vehicle assembly...
**************************************************************
* *
* MSC.Software Corporation *
* *
* A D A M S / S o l v e r *
* *
* Automatic Dynamic Analysis of Mechanical Systems *
* *
* 2010-05-07 09:29:07 Version 2005.0.0 *
* *
* *
**************************************************************
Enter ADAMS model file name or Carriage Return or ? (or STOP):
No model input file (ADM file) is given.
Enter Command:
file/model=try_fourpost
A new model supplied. Initialization starts...
The default input and analysis values will be restored.
CPU time used = 0.46875 seconds
ADAMS/Car 2005.0.0
ID = 1
Enter ADAMS model file name or Carriage Return or ? (or STOP):
Enter ADAMS output file name or ? (default is same as input):
ADAMS model file .. try_fourpost.adm
Default file names for output files
Tabular output file:
try_fourpost.out
Diagnostic file :
try_fourpost.msg
Message Database file :
try_fourpost.mdb
Graphics file :
try_fourpost.gra
Request file :
try_fourpost.req
Results file :
try_fourpost.res
Input Phase - Reading in Model
***********************************************************
ADAMS/Solver dataset Title:
ADAMS/Car Assembly (v2005.0.0)
***********************************************************
Reading of model complete.
Input Phase - Populating Solver database
Input Phase Complete.
CPU time is 0.46875 seconds.
Input and Input Check Phase complete.
The system has 20 kinematic degrees of freedom.
Enter Command:
preferences/solver=F77
Enter Command:
output/nosep
Enter Command:
equilibrium/ stability=1.0e-4
Enter Command:
diff/2, fun=0
Enter Command:
diff/3, fun=0
Enter Command:
diff/5, fun=0
Enter Command:
diff/4, fun=0
Enter Command:
simulate/statics
Input and Input Check Phase complete.
Current ADAMS model successfully verified.
Entering the static equilibrium analysis phase...
Displacement initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 604
Number of non-zero entries ...... = 4284
Percentage of matrix non-zero ... = 1.1743
Total space used in MD array .... = 376308
Reading configuration file 'd:\MSC.Software\MSC.ADAMS\2005\acar/acar.cfg'
Reading configuration file 'C:\Documents and Settings\Administrator/.acar.cfg'
Reading configuration file 'd:\MSC.Software\MSC.ADAMS\2005\aride/aride.cfg'
TIRE ID: 1
TYR900 -> Pacejka 89 Tire Model
Using 2D Handling Road Contact v1.0
TIRE ID: 2
TYR900 -> Pacejka 89 Tire Model
Using 2D Handling Road Contact v1.0
TIRE ID: 3
TYR900 -> Pacejka 89 Tire Model
3D Contact:
SHAPE table not found in tire property file.
Tire carcass shape defaults to a cylinder.
Using 2D Handling Road Contact v1.0
TIRE ID: 4
TYR900 -> Pacejka 89 Tire Model
3D Contact:
SHAPE table not found in tire property file.
Tire carcass shape defaults to a cylinder.
Using 2D Handling Road Contact v1.0
Performing Static analysis...
Generating the Jacobian matrix for the statics or quasi-statics problem.
Jacobian Matrix Statistics for Statics
======================================================
Number of equations ............. = 1645
Number of non-zero entries ...... = 16835
Percentage of matrix non-zero ... = 0.62213
Total space used in MD array .... = 694796
Symbolic refactorization attempted at time = 0.0.
Static equilibrium was found after 6 iterations.
The maximum error is 1.28960E-05 with a maximum imbalance of 4.12865E-09.
Enter Command:
deactivate/jprim, id=6
Enter Command:
deactivate/jprim, id=7
Enter Command:
simulate/dynamics, end=10.0, steps=4000
Input and Input Check Phase complete.
The system has 23 kinematic degrees of freedom.
Current ADAMS model successfully verified.
Begin the dynamic analysis.
The system is modelled with INDEX-3 DAEs.
The integrator is GSTIFF, CORRECTOR=original.
Integration error = 1.0E-02
Displacement initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 443834
Velocity initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4566
Percentage of matrix non-zero ... = 1.2641
Total space used in MD array .... = 446394
Acceleration initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 1174
Number of non-zero entries ...... = 7299
Percentage of matrix non-zero ... = 0.52957
Total space used in MD array .... = 480482
Generating the Jacobian matrix for the displacements and velocities.
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 443858
Generating the Jacobian matrix for the accelerations and forces.
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 1174
Number of non-zero entries ...... = 7299
Percentage of matrix non-zero ... = 0.52957
Total space used in MD array .... = 544436
Generating the Jacobian matrix for the dynamics problem.
Jacobian Matrix Statistics for a Dynamic Analysis
======================================================
Number of equations ............. = 1642
Number of non-zero entries ...... = 18446
Percentage of matrix non-zero ... = 0.68416
Total space used in MD array .... = 863654
Simulation Time Cumulative Cumulative Integrator
Time Step Iterations Steps Taken Order
___________ ___________ __________ ___________ __________
0.00000E+00 1.25000E-04 0 0 1
1.25000E-04 1.25000E-04 4 1 1
---- WARNING ----
The corrector has not converged after 6 attempts. No. of iterations = 10.
The system has 23 kinematic degrees of freedom.
At time 0.44125 and step 187 , ADAMS is adjusting solver and integrator
parameters to attempt an integration restart.
Displacement initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 451204
Velocity initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 451692
Acceleration initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 1174
Number of non-zero entries ...... = 7299
Percentage of matrix non-zero ... = 0.52957
Total space used in MD array .... = 493970
Generating the Jacobian matrix for the displacements and velocities.
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 451716
Generating the Jacobian matrix for the accelerations and forces.
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 1174
Number of non-zero entries ...... = 7299
Percentage of matrix non-zero ... = 0.52957
Total space used in MD array .... = 565782
Generating the Jacobian matrix for the dynamics problem.
Jacobian Matrix Statistics for a Dynamic Analysis
======================================================
Number of equations ............. = 1642
Number of non-zero entries ...... = 18446
Percentage of matrix non-zero ... = 0.68416
Total space used in MD array .... = 880612
Simulation Time Cumulative Cumulative Integrator
Time Step Iterations Steps Taken Order
___________ ___________ __________ ___________ __________
4.41250E-01 1.25000E-04 654 186 1
---- WARNING ----
The corrector has not converged after 6 attempts. No. of iterations = 10.
The system has 23 kinematic degrees of freedom.
At time 0.44125 and step 187 , ADAMS is adjusting solver and integrator
parameters to attempt an integration restart.
At integration time 0.44125 , the simulation is switching to a
modified corrector algorithm. The error norm will control integration
variables only.
At integration time 0.44125 , an Aitken formula over 5 previous
iterations will be used to accelerate the convergence of the corrector.
Displacement initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 451692
Velocity initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 451692
Acceleration initial condition analysis...
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 1174
Number of non-zero entries ...... = 7299
Percentage of matrix non-zero ... = 0.52957
Total space used in MD array .... = 493970
Generating the Jacobian matrix for the displacements and velocities.
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 601
Number of non-zero entries ...... = 4254
Percentage of matrix non-zero ... = 1.1777
Total space used in MD array .... = 451716
Generating the Jacobian matrix for the accelerations and forces.
Jacobian Matrix Statistics for the Initial Conditions
======================================================
Number of equations ............. = 1174
Number of non-zero entries ...... = 7299
Percentage of matrix non-zero ... = 0.52957
Total space used in MD array .... = 565782
Generating the Jacobian matrix for the dynamics problem.
Jacobian Matrix Statistics for a Dynamic Analysis
======================================================
Number of equations ............. = 1642
Number of non-zero entries ...... = 18446
Percentage of matrix non-zero ... = 0.68416
Total space used in MD array .... = 880612
Simulation Time Cumulative Cumulative Integrator
Time Step Iterations Steps Taken Order
___________ ___________ __________ ___________ __________
4.41250E-01 1.25000E-04 707 186 1
---- WARNING ----
The corrector has not converged after 6 attempts. No. of iterations = 20.
The system has 23 kinematic degrees of freedom.
---- ERROR ----
The simulation stopped at time = 0.44125 . ADAMS cannot solve
the equations of motion.
The greatest error in an equation is 3.62063E-02 in the
equation for GFORCE try_fourpost.TR_Front_Tires_til_wheel_force .
The greatest change in a variable is 1.26342E-13 in the
variable for PART try_fourpost.TR_Front_Tires_whl_wheel .
Try the following in this order:
1. Use the MAXIT argument on the EQUILIBRIUM, IC, KINEMATICS,
or INTEGRATOR command to increase the maximum number of
iterations.
2. Temporarily change the value of the PATTERN argument on the
EQUILIBRIUM, IC, KINEMATICS, or INTEGRATOR command to
PATTERN = T.
3. Temporarily increase the value of the ERROR argument on the
EQUILIBRIUM, IC, KINEMATICS, or INTEGRATOR command at
time = 0.44125 .
4. If one or more forces change rapidly or sharply near
time = 0.44125, modify the force or forces.
Enter Command:
!
Enter Command:
stop
Terminating ADAMS/Car usersubs...
ID = 1
ADAMS/Solver execution terminated by subprogram A3TERM
CPU time used = 13.891 seconds
One or more simulations were unsuccessful !
Please review the message file 'try_fourpost.msg' for details,
and verify the results with caution.
Simulation is complete.
麻烦各位大虾帮帮忙,不胜感激!~~~~~ |
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