Hello,
The system i simulate is a propelled vehicule that is composed of two parts : first is a rigid part, the second is a flex part.
Until now, i started the simulations with a sim/statics command, in modal representation => the result is the nodes of the flex part move to the equilibrium positions before the transient simulation.
Good idea (or not ?...) : i use a fixed joint, only during the sim/statics command, to link my vehicule with the ground. Without the joint, the static analysis is not successful. Note that the 2 parts are linked by bushings.
But now, due to controls consideration, i need to do few seconds of simulation before. As there is no interest to simulate this part of the simulation in modal mode, i tried to :
- realize the simulation in rigid mode during few seconds
- then activate modal representation of the flex part
- realize the sim/statics command in order to obtain equilibrium of the flex part,
- realize the rest of the simulation
But step 3 is never successfull, even playing with activate/deactivate commands of the fixed joint and bushings.
Do you have any advice please ?
Thanks for your help.
