A Simple Dynamics Experiment Based on Acoustic Emission

Authors

Mark L. Nagurka, Marquette UniversityFollow

Document Type

Article

Language

eng

Publication Date

3-2002

Publisher

Elsevier

Source Publication

Mechatronics

Source ISSN

0957-4158

Abstract

This paper describes a simple experiment well suited for an undergraduate course in mechanical measurements and/or dynamics, in which physical information is extracted from an acoustic emission signature. In the experiment, a ping–pong ball is dropped onto a hard table surface and the audio signal resulting from the ball–table impacts is recorded. The times between successive bounces, or “flight times”, are used to determine the height of the initial drop and the coefficient of restitution of the impact. The experiment prompts questions about modeling the dynamics of a simple impact problem, including the use of the coefficient of restitution and the importance of accounting for aerodynamic effects.

Comments

Accepted version. Mechatronics, Vol. 12, No. 2 (March 2002): 229-239. DOI. © 2002 Elsevier B.V Used with permission.

Recommended Citation

Nagurka, Mark L., "A Simple Dynamics Experiment Based on Acoustic Emission" (2002). Mechanical Engineering Faculty Research and Publications. 201.
https://epublications.marquette.edu/mechengin_fac/201