Platen Deceleration as a Mechanism of Noise Production in Impact Forming Machines
- 1 June 1976
- journal article
- Published by SAGE Publications in Journal of Mechanical Engineering Science
- Vol. 18 (3) , 126-130
- https://doi.org/10.1243/jmes_jour_1976_018_022_02
Abstract
The very rapid deceleration on impact of the platen (tup) in a drop forging machine is shown to be an important source of impulsive noise. An ‘explicit’ finite-difference method is used to calculate the sound pulse radiated by a platen in the form of a solid cylinder undergoing a deceleration given by where T is the impact time. The results are presented in dimensionless form, enabling the pulse to be calculated for a wide range of platen sizes and impact times.Keywords
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