[SOLVED] How to create a non-linear spring of a dynamics model?

[yuan.xiao_lin]

Hello everyone!
 
    I wanna create a nonlinear dynamics model which will be used to a vehicle collision scenario. In this model, the spring will play a nonlinear force-element role. For instance, we may use a piecewise function (as shown in Fig. 1) to represent the spring stiffness or use the force-displacement curve to represent the characteristic of a nonlinear spring.

 

 

Fig.1  nonlinear spring-dumper model

    

    I can implement this nonlinear model in other programming language like C++, Matlab. But, in Unigine, I don't how to integrate this nonlinear model into the Unigine system. At certain stages of the car crash, I would like to use my nonlinear model , and other phases using the Unigine algorithm. 

 

 

   

    Thanks for you reply.

 

 

 

[ulf.schroeter]

I think that non-linear springs are not supported and the physics engine does not provide any extension point for customization (except direct engine source code modifications)

[binstream]

Ulf is right, at the moment such feature requires access to the full source code of the engine.

[yuan.xiao_lin]

Ulf is right, at the moment such feature requires access to the full source code of the engine.

 

I think that non-linear springs are not supported and the physics engine does not provide any extension point for customization (except direct engine source code modifications)

 

 

 thank you!