Hello,

I have modeled a robot arm with Msc.Adams and I did a rigid body dynamics simulation with that model. Adams exports loads for each part separately to be used in FEA analysis. The inp file generated by Adams includes only the loads so it needs to be merged with the main Abaqus inp file. The structure of the inp file generated by Adams is like below:

I am running a "General,Static" analysis without any boundary conditions for each part separately since theoretically the external forces and the inertia forces should be in equilibrium. However my analysis fails because of rigid body motion. I tried to constrain my model with soft springs but it didn't help.

Can anybody please help me with that issue?

Thank you very much for all your time and help in advance.

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** LOAD CASE = 1 @ TIME =0.00000e+000

***STEP

*STATIC*

DLOAD

,GRAV, 2.07861e+004, -9.99978e-001,-6.58526e-003,0.00000e+000

,CENTRIF,8.20822e-002,0.,0.,0.,0.00000e+000,0.00000e+000,1.00000e+000

,ROTA, 7.68755e-001,0.,0.,0.,0.00000e+000,0.00000e+000,1.00000e+000

*CLOAD

M33, 1,4.56889e+004

M33, 2,-8.36233e+004

M33, 3,5.14496e+000

M33, 4,1.76950e-001

M33, 5,9.66883e-002

M33, 6,1.44119e-001

M34, 1,2.74842e+002

M34, 2,8.21246e+004

M34, 3,-5.14494e+000

M34, 4,-2.18762e+003

M34, 5,-3.47573e+004

M34, 6,-2.30124e-004

*END STEP

**

** LOAD CASE = 2 @ TIME =5.00000e-003**

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