question about (i guess) flexbody and jbeam structure

I am slowly but surely making my way through some scratch made jbeam for a LeGran independant rear suspension. I am using the sunburst as a reference, (nothing more nothing less) and I noticed, in particular, the sunburst has a weird flexbody movement in the rear torque rod (thats what I call it anyway)...see the attached pic. I was under the assumption that the beams created between 2 nodes (which should be defined on the mesh via coordinates IN the mesh) would act in a way that is essentially linear...rather, if this "torque rod" or "lateral link" (whatever it is), is basically a "straight line" part, that it would function and react in a linear motion while "flexing" in game. But what I am seeing is the actual polygons flexing in a rather unnatural way (see: bad modelling? bad jbeaming?) Just a detail I figured I would point out but it is still my question...since all the beams are completely straight lines, from point A to point B, how can you model/create a bent/curved piece of (lets say) suspension component without it flexing this way?

 

Beams are nothing, they just hold nodes in place.

Nodes are everything.

Node group which mesh is binded to can be wrong, or some node is moving in a way not intended to.

Beams themselves don't do anything at all, except they hold nodes in place, beams don't have collisions, beams don't affect mesh in any way.

You can think it this way, node group pinches node to mesh, then as node moves mesh is shaped by that movement of node.

If one node moves and two nodes stay in place, mesh will get bend, if relation of all nodes in nodegroup that is group mentioned in flexbody definition, moves same amount in relation to each other maintaining original shape, mesh will stay as it was.

 

thanks for the reply, that certainly cleared it up for me in my head lol makes much more sense now.