Vibration Correlation Dynamics of Cam Follower Systems and Vehicles- Review

Abstract

To reduce the vehicle vibrations is always a major concern in designing a vehicle. The vibrations occur are of two types, torsional and longitudinal vibrations. A vehicle model is utilized for analyzing and measurement of vibrations in it at the time of jump. Vibration values measured on vehicle model are compared with the vibration values in cam-follower systems. If, cam and follower remains in contact, it represents single degree of freedom system. It becomes a two degree of freedom system as soon as the cam and follower separates. This phenomenon of jump creates two new natural frequencies in a system. A force-closed cam-follower was used for the investigation. The system is operated on the cusp of incipient separation. Jump is a situation where the cam and follower physically separate. When they come back together the impact introduces large forces and thus large stresses, which can cause both vibrations. This paper suggests the significance of vibration measurement with experimental modeling and correlation with cam dynamics in vehicle models. The experimentation with results is discussed in this paper.