Instrumentation For Vibration And Modal Testing – A Senior Design Project
- Conference
- Location
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Chicago, Illinois
- Publication Date
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June 18, 2006
- Start Date
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June 18, 2006
- End Date
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June 21, 2006
- ISSN
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2153-5965
- Conference Session
- Tagged Division
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Instrumentation
- Page Count
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9
- Page Numbers
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11.774.1 - 11.774.9
- DOI
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10.18260/1-2--943
- Permanent URL
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https://peer.asee.org/943
- Download Count
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757
Paper Authors
Jahangir Ansari Virginia State University
JAHANGIR ANSARI is an Assistant Professor of Manufacturing Engineering in the Department of Engineering and Technology at Virginia State University. He received his M.S. degree in Mechanical Engineering in 1979 and Ph. D. degree in Mechanical Design and Production Engineering in 1983 both from Seoul National University. He joined the faculty at VSU in 2002. He has over 18 years of industrial experience in different areas including shipbuilding and cement plant industries. His research interests include Structural Vibration, FEM, CAD/CAM/CNC, and Computer Integrated Manufacturing.
Yoon Kim Virginia State University
YOON G. KIM is an Assistant Professor of Computer Engineering in the Department of Engineering and Technology at Virginia State University. He earned his M.S. and D.Sc. degrees in Electrical Engineering from Washington Univ. in St. Louis in 2000 and 2005, respectively. He joined the faculty at VSU in 2004. He has over 11 years of industrial experience in the area of telecommunication systems. His research interests include Internet traffic engineering, data acquisition, and wireless sensor networks.
Abstract
NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract
Instrumentation for Vibration and Modal Testing - A Senior Design Project
Abstract
This project was designed for senior students to enhance their hands-on experience with technical instruments and computer based simulations. Throughout this project, senior students constructed an instrumental set-up to experimentally identify modal characteristics of a bell-shaped structure. Impact excitation method was used to identify the first five resonance frequencies and a commercial FEA package was used to verify the validity of the set up for further applications.
Introduction
At Virginia State University, senior project is a three credit elective course that engineering students can take in their senior level. This project based course allows the students to apply their engineering knowledge and skills and gain hands-on experience in the area of their interest. This project establishes an open ended undergraduate research lab in the area of structural dynamics for both Computer Engineering (CE) and Manufacturing Engineering (MANE) students at Virginia State University.
Instrumentation for vibration and modal testing of a bell-shaped structure was a project done recently. However, lack of generalized mathematical representation of bell vibrations necessitates numerical and/or experimental methods to determine the vibration characteristics of this type of structure.
The purpose of this project was to set up a virtual instrumentation and data acquisition technology to be used for obtaining vibration characteristic of a bell shaped-structure.
Experiment Setup and Procedure
The system consisted of a Data Acquisition (DAQ) board installed on a PC, an accelerometer, an impulse hammer, and connection cables. LabVIEW 7.1 1 was used for experimental measurements of the first five natural frequencies and corresponding mode shapes of a bell. The experimental modal parameters obtained by impact testing are compared with corresponding results obtained by a finite-element analysis to verify the accuracy of the experimental results.
The experiment setup of impulse excitation for this study is illustrated in Figure 1. National Instruments’ LabVIEW 7.1 software and National Instruments’ PCI-4474 data aquisition board are used for data collection. A bell cast from brass is used for vibration testing and modal
Ansari, J., & Kim, Y. (2006, June), Instrumentation For Vibration And Modal Testing – A Senior Design Project Paper presented at 2006 Annual Conference & Exposition, Chicago, Illinois. 10.18260/1-2--943
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