RESEARCH PAPERS: Other Technical Papers

Noise and Vibration Analysis of an Impact Forming Machine

[+] Author and Article Information
A. E. M. Osman, M. M. Sadek, W. A. Knight

Department of Mechanical Engineering, The University of Birmingham, Birmingham, England

J. Eng. Ind 96(1), 233-240 (Feb 01, 1974) (8 pages) doi:10.1115/1.3438303 History: Received June 06, 1973; Online July 15, 2010


The mechanism of noise and vibration generation in an impact forming machine is investigated using Fourier Transform methods. Noise, vibration, and load measurements have been correlated for a fixed input energy and the sound field around the machine investigated. The measured results are compared with those predicted by a lumped parameter computer model for determining the normal modes of vibration of the machine structure and the moving platen. It is found that the major proportion of the noise energy is generated in the impact area and the dominant source of noise is the free vibration of the structure. Further contributions are observed due to the excitation of the structure by the impact force. For a constant input energy the noise and vibration levels increase as the billet height for simple upsetting is reduced.

Copyright © 1974 by ASME
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