Delayed Motionsolve Co-Simulation with EDEM

Gaetan Pans_21775
Gaetan Pans_21775 Altair Community Member
edited June 17 in Community Q&A

Hi,

I want to simulate my robot in deformable terrain using EDEM and Motionsolve co-simulation, however, Im having 2 issues.

Firstly, my terrain in EDEM takes 0.5 seconds to generate and hence I want it to fully generate before transferring the geometry from motionsolve over to EDEM.

Secondly, I am dropping in my robot from a slight height in motionsolve to ensure it lands on top of the generated particles and already slightly sunk into them. However my motion of my wheels/pedallers (see image) start instantly and ideally would have a delayed start to only start going once its 'landed' on the terrain.

Hope this makes sense, I have attached images to express my domain.

Any help much appreciated

Thanks

Gaetan 

Tagged:

Answers

  • Christopher_Fadanelli
    Christopher_Fadanelli
    Altair Employee
    edited June 17

    Hi Gaetan,

     

    You can save the domain as a material bed. This will already have the EDEM particles already loaded in and it can be imported to other EDEM simulations! At this link there is a tutorial that describes how this can be done. 

     

    How is the motion for the wheels defined? A STEP function in MotionView? What you could also do is after a certain amount of time (1 sec for example), engage the motion applied to the wheels. For example: `STEP(TIME,1,0,3,15)`. Where until 1 sec the motion is 0 rad/s (assumption is that the motion is set to velocity). After 1 second, the motion will ramp up to 15 rad/s at 3 seconds. 

     

    Best,

     

    Christopher Fadanelli   

Categories