Learning Forum

[busraekinci]

Hello everyone! I need an urgent help! I am doing a structural analysis for an arm mechanism with bucket. I made a very simple model. I connected the structure by 3 revolute joints to ground first at the top holes. Then all other joints are revolute (body-body). When I apply a remote force into the bucket, joint forces do not make any sense. there are lateral forces even on two force members. As I check, my connections are correct. All the parts are rigid.

Is there anyone who has an idea for this problem? You can see my basic model in the photo.

[Ashish Khemka]

nnLooking at the snapshots it looks that there are no applied forces in lateral direction. Just a test- you can apply fixed support at one of the joint location (or a fixed body-ground joint) and then check the reaction. Also I see a warning for rigid body motion. Is this motion in lateral direction?.Regards,nAshish Khemkan

[peteroznewman]

Problem was resolved in this other discussion.n/forum/discussion/20134/not-enough-constraint-to-prevent-rigid-body-motion-mechanism-with-revolute-joints#latestn