Sources of noise and vibration in a mechanical system with clearances
Inherent in the design of any mechanism with moving parts is the requirement for clearances. In the case of an engine, this requirement is enhanced by the extremes of both load and temperature under which some parts are expected to function. Collision of the parts in these connections where clearances exist are influenced by transient combustion forces as well as inertial forces. Impacts in the joints of a system are a major source of sound, vibration and wear. The mechanism of sound generation follows the dynamic response of the system components. The resulting transient acoustic field is comprised of radiation from the forced and free vibrations of the system. Radiation due to inertial forces are generally of lower frequency whereas sounds produced by the impacts exhibit higher levels with higher spectral content. This study investigates the sound and vibration response of a four-bar mechanism in the absence of external forces.
- Research Organization:
- Wayne State Univ., Detroit, MI
- OSTI ID:
- 5949122
- Report Number(s):
- CONF-820534-
- Journal Information:
- Proc. - Int. Conf. Noise Control Eng.; (United States), Vol. 1; Conference: International conference on noise control engineering, San Francisco, CA, USA, 17 May 1982
- Country of Publication:
- United States
- Language:
- English
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