[JamesR]

Hello

I am trying to avoid creating a large background mesh for my rigid body to move in. I am simulating a motorcycle moving from rest to 30 m/s over a period of 3 seconds. I have implemented overset meshing with three component meshes merged into a background mesh. The background mesh is currently 50 meters long.

I would like to use the drivenLinearMotion motion function implemented in v2106 to move the background mesh with the component meshes.

All cellzones have been correctly identified with topoSet and setFields.

I have tried implementing it as follows in the dynamicMeshDict:
dynamicFvMesh dynamicOversetFvMesh;
motionSolverLibs (fvMotionSolvers);
solver multiSolidBodyMotionSolver;


multiSolidBodyMotionSolverCoeffs
{
All
{
motionSolverLibs (libfvMotionSolvers);
motionSolver solidBody;
solidBodyMotionFunction drivenLinearMotion;
cellzone All;
cOfGdisplacement CofG;
}
RR
{
solidBodyMotionFunction tabulated6DoFMotion;
cellZone RR;
tabulated6DoFMotionCoeffs
{
CofG ( 0 -0.00506 0.35172);
timeDataFileName "RR_sixDoF.dat";
}
cOfGdisplacement CofG;
bodyIdCofG 1;

}

rearWheel
{
solidBodyMotionFunction tabulated6DoFMotion;
cellZone rearWheel;
tabulated6DoFMotionCoeffs
{
CofG ( 0 1.70675 0.3826);
timeDataFileName "rearWheel_sixDoF.dat";
}

}

frontWheel
{
solidBodyMotionFunction tabulated6DoFMotion;
cellZone frontWheel;
tabulated6DoFMotionCoeffs
{
CofG ( 0 -0.00506 0.35172);
timeDataFileName "frontWheel_sixDoF.dat";
}

}

}

The result of the simulation is that the background just doesn't move whilst all the other specified motion works as intended.

Any help would be greatly appreciated!

James