Hi guys!nI was reading the topic and realized that there is an easier way to solve this problem.nIf you check the documentation, you'll see that you can add nonlinear moment-angle relations with tabular data only for bushing, general Joints, and Radial Gaps. So you could substitute your revolute joint for a general joint with equivalent DOF unlocked.nOnce you selected your general joint in the tree, click Worksheet, and then you'll be able to right-click the corresponding stiffness cell and select Tabular data.nDespite the topic being already solved, thought it might be useful to someone.