Problem 7: Dynamic Analysis of a Cam-follower Mechanism
Objective
- Displacement, velocity, and acceleration of the flat-face follower.
- Cam contact force.
- Cam shaft torque.
Entities Validated
- Rigid body
- Inline joint
- Perpendicular axes joint
- Revolute joint
- Motion joint - rotational
- Force_Spring damper – translational
- Advanced joint – curve-to-curve
Type of Analysis
Dynamic
Reference
Theory of Machines and Mechanisms: SI Edition, Third Edition International version, by John J. Uicker, JR, Gordon R. Pennock and Joseph E. Shigley (2009): 645 (ISBN 13:978-0-19-806232-5)
Model Files
- circular_cam_dynamics.mdl - MotionView Model
- circular_cam_dynamics.xml - MotionSolve Deck
Graphical Results
Result Comparison
Output | Analytical | MotionSolve | % Error |
---|---|---|---|
Peak position of follower (mm ) | 100 | 100 | 0% |
Peak velocity of follower (mm/s ) | 261.8 | 261.8 | 0% |
Peak acceleration of follower (mm/s2 ) | 1370.78 | 1370.31 | 0.04 % |
Cam contact force (N) | 196.02 | 196.02 | 0% |
Cam shaft torque (N-mm) | 7612.06 | 7611.28 | 0.01 % |
Conclusion
MotionSolve results compare well with analytical results.