柔性体接触问题

461692867

在ADAMS中刚性体运动没问题，导入MNF文件柔性化后，出现WARNING: Model .model_1 is no longer compatible with Adams/Solver (FORTRAN).

.model_1.CONTACT_1 may be causing the incompatibility because of one or more

of the following:

- Objects of type Contact are not compatible with Adams/Solver (FORTRAN).

- The topology of the model has changed so .model_1.CONTACT_1

     is no longer connected in a way that is compatible with

     Adams/Solver (FORTRAN).

运行出现WARNING: The number of edges does not match the number of triangles.

The shell may not be water tight.

If the shell is from a coarsened Flexible Body,

it may experience difficulty when used in a CONTACT.

ERROR:   At time  0.000000000E+00 the integrator is unable to start/restart.  Possible Causes:

(1) The accuracy required for the numerical solution can not be attained.

Relax (increase) the value of the acceptable integration ERROR.

(2) Incompatible redundant constraints, a lock up, or a bifurcation

situation.  The latter two indicate a mechanism design problem.

(3) The system includes a zero (or relatively small) mass on a part with

an unconstrained translational degree of freedom.

Make sure you have mass on all parts with translational degrees of freedom.

(4) The system includes a zero (or relatively small) inertia on a part

with an unconstrained rotational degree of freedom.

Make sure you have inertias on all parts with rotational degrees of freedom.

(5) An Adams element has a function expression that equals exactly itself.

For example,

     SFORCE/id1,I=id2,J=id3,ROT,FUNC=SFORCE(id1,jflag,comp,rm),and

     DIFF/id4,IMPLICIT,IC=0,FUNC=DIF1(id4).

Similarly,

     VARIABLE/id5, FUNC=VARVAL(id5)*TIME

equals itself at 1 second. Avoid setting an Adams element equal to itself.

ERROR:   Simulation failure detected.

ERROR:   Simulation failure detected.

有人知道怎么解决吗？