Listening to the coefficient of restitution - revisited

Autor:	E. Lægsgaard, I. Stensgaard
Rok vydání:	2001
Předmět:	Physics Energy loss Acoustics Coefficient of restitution General Physics and Astronomy Time resolution Elasticity (economics) Collision Steel ball Smooth surface
Zdroj:	American Journal of Physics. 69:301-305
ISSN:	1943-2909 0002-9505
DOI:	10.1119/1.1326077
Popis:	We present a new method for measuring the coefficient of restitution between a steel ball and a flat, smooth surface, based on the recording of sound files with a PC. We demonstrate how a simple and straightforward analysis of the sound files yields the coefficient of restitution as a function of velocity. The time resolution of many PC sound cards allows us to measure the collision time and hence to estimate the average impulsive force and the stress exerted on the surface. This in turn provides a basis for a discussion of energy loss mechanisms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9af5859a96e59dfa1ef124ed20d5dc6f https://doi.org/10.1119/1.1326077 Zobrazit plný text záznamu