Hello all, I'm doing a motion analysis of a Bicycle frame where I have to analyze a motion of the frame and find the force on suspension entity also to find the displacement of suspension entity. I want the Rod marked near the "1" should move along the curve. I've tried a lot but ended up wrong. Please, provide me with proper guidance. Please check whether the constraints I've given is correct or not... Please, refer the figures below... I want the rod 1 to move along the curve and reach position 2 and comeback the same. Please, help me to select the proper interpolation and Independent variable. Thank you for your valuable time... Fig. 1 Fig. 2 Fig. 3 .