Learning Forum

[zabee.k]

Hi,

I wanted to understand what exactly is Joint Force and when we should be using it?

So, we have joint load properties with which we can define some force acting on a joint. Lets say theres a translational joint and using joint load property object i can define the force acting on it for which i need to create a function. 

Then we aslo have joint vector load which will work for joints set to general. I can even use this to define the force on one part of my translational joint. For that we will define body to ground joint for that part and using joint vector load object we can define force acting on it. 

Now my question is how does joint force works. and also when we can apply force using joint load properties why to go with joint vector load. when to use joint load properties and when to use join vector load.

and wanted to understand how joint force works, not only joint force, we also have joint springs. how is spring defined in connection different from joint spring.

Difference between Joint load properties vs joint vector load vs force joint

Difference between connection sprin and joint spring.

Any explanation on this would be highly appreciated! 

 

Thanks and Regards,

Khan.

[Ankush Choudhary]

The Joint Load Properties object is used to specify joint motion and restriction values. It can be applied to a joint object whose type is Revolute , Translational or Cylindrical. This is the only joint loading type that will allow you to apply joint restriction values. The joint vector load allows to apply force and torque values in 6 directions. A joint force is allowed to apply a joint scalar force in single direction. Therefore, it depends on the type of joint load you have to apply. For instance, if you want to apply translational force in the X direction, you can use any of them. However, if you want to apply a joint restriction to a translational joint, then you have to use joint load properties only.

A spring connection is used to connect two bodies, similar to mechanical. However, joint springs are used to provide stiffness and damping between the joints. Here,  you will find more options like preload, coil diameter, etc. that are related to motion solvers.
For further information, please check out the motion documentation.

[zabee.k]

Hello Ankush,

Thanks for the explanation, now its clear to me. Really appreciate your time and supports.