Project title:	DC Motor Acoustic Noise analysis using Signal Processing techniques
Sponsors:	Buehler Motor Inc.
Duration:	Jul 1, 2000 - Jun 30, 2001
Team Members:	Naveen Kolli, Mo-Yuen Chow, H. Joel Trussell
Description:	The objective of this project is to work in conjunction with Buehler Motor Inc. to identify possible reasons for the acoustic loudness of a class of DC Motors produced by the company and to suggest means to reduce the noise. The approach taken is to operate a set of test motors at steady state and collect voltage, current, sound, vibration and speed data using a digital system at a sampling rate of 22.05 KHz. The collected data is then analyzed both in the time and frequency domains to extract identifying features describing the behavior of the motors. These features are quantized wherever possible and conjectures relating these features to the acoustic noise are proposed. Each of the conjectures is then verified. Finally, methods to reduce the acoustic noise are suggested to the company. A digital Data Acquisition system is used in a lab set up to acquire the data and software packages such as LabView, Matlab and Simulink are used to analyze the data.
Milestones completed:	To be added.
Publications:	To be added.
Bench/Prototype:	To be added.
Links:	To be added.