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Session 2526

Laboratory Instruction in Acoustics and Vibration

Timothy Cameron, Daniel Russell GMI Engineering & Management Institute

Abstract Eight laboratory exercises have been developed for a senior-level course in “Acoustics, Noise and Vibration” to introduce students to sound and vibration engineering. Laboratory topics include wave propa- gation in fluids and solids, acoustic and mechanical impedance, and signal processing. The laboratory exer- cises demonstrate governing physical principles, provide experience using state-of-the-art tools and tech- niques in sound and vibration engineering, and introduce applications in architectural acoustics and noise and vibration control. The laboratory exercises are sequenced to facilitate comprehension, with each successive exercise building on concepts demonstrated previously. In this paper we describe the laboratory exercises, explain the objectives and learning outcomes ex- pected of each exercise, and discuss how the sequence of exercises enhances comprehension. Full labora- tory procedures will be available on the Internet.

Introduction Strong demand from students and employers prompted the recent development of a new concentra- tion in Acoustics, Noise and Vibration at GMI Engineering & Management Institute. Two courses in acous- tics and vibration have been created and three more are planned as a cooperative effort between Mechanical Engineering and Applied Physics. GMI’s instructional Acoustics, Noise and Vibration (ANV) Laboratory was made possible by grants from the National Science Foundation and industry. Eight laboratory exercises have been developed for the senior-level course “Acoustics, Noise and Vi- bration” to introduce students to sound and vibration engineering. The laboratory exercises demonstrate governing physical principles, provide experience using state-of-the-art tools and techniques in sound and vibration engineering, and introduce applications in architectural acoustics and noise and vibration control. The laboratory exercises are sequenced to facilitate comprehension, with each successive exercise building on concepts demonstrated previously. The sequence of exercises is: 1. Introduction to Sound Waves, 2. Simple Sound Sources and Directivity, 3. Introduction to Frequency Analyzers and Signal Processing, 4. Sound Power and Vector Sound Intensity, 5. Absorption Coefficients and Impedance, 6. Room Acoustics and Reverberation Time, 7. Acoustic Filters and Transmission Lines, 8. Waves in Solids and Modal Analysis.

1996 ASEE Annual Conference Proceedings

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Cameron, T., & Russell, D. W. (1996, June), Laboratory Instruction In Acoustics And Vibration Paper presented at 1996 Annual Conference, Washington, District of Columbia. 10.18260/1-2--6158