my animation of four bar mechanism is not moving it is a still image ,what could be the possible reasons ? also why are the cg's out of the rod as shown in image ?

Answer 1

[pietro]

Check the position CoG CSs. Regarding the movement of the 4 bar linkage, have you plotted the data from the Joint sensor? What is the result of the plot?

[gourav Desai]

http://www.mathworks.com/matlabcentral/answers/uploaded_files/14876/Capture.PNG

this is graph of accln ant torque for graph of pos vel is straight line

[pietro]

I see that it is almost zero. The system looks blocked. First I would check the position of the CoGs that are wrongly placed.