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Determination of Modal Properties of Automotive Bodies and Frames Using Transient Testing Techniques
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English
Abstract
This paper describes methods of determining modal stiffness, inertia, and damping properties of automotive bodies and frames using transient testing techniques.
The test equipment described is a digital Fourier analyzer system. The hardware and software used to obtain transfer functions of the vehicle components is discussed, and several examples are presented which compare frequency response data generated by the Fourier analyzer to the same data generated by the more standard sinusoidal excitation methods.
Authors
Citation
Sisson, T., Zimmerman, R., and Martz, J., "Determination of Modal Properties of Automotive Bodies and Frames Using Transient Testing Techniques," SAE Technical Paper 730502, 1973, https://doi.org/10.4271/730502.Also In
References
- Klosterman Albert L. “A Combined Experimental and Analytical Procedure for Improvement of Automotive System Dynamics.” Paper 720093 SAE Automotive Engineering Congress Detroit January 1972
- Lemon J. R. Sherlock J. E. Comstock T. R. “Analyzing Dynamic Characteristics of Machine Structures in Operation.” Paper 67-DE-44 ASME Design Engineering Conference
- Hurty Walter C. Rubinstein F. Moshe “Dynamics of Structures.” Englewood Cliffs, New Jersey Prentice-Hall 1964
- Bendate Julius S. Piersol Allan G. “Random Data: Analysis and Measurement Procedures.” Wiley-Intersciences 1971
- Klosterman Albert L. Lemon Jason R. “Building Block Approach to Structural Dynamics.” ASME Publication 1967 VIBR.
- Klosterman Albert L. McClelland Wayne “Dynamic Analysis of Complex Systems.” ASME paper ASME-30 Vibrations Conference Cincinnati September 1973
- “Fourier Analyzer Training Manual.” Application Note 140-0, Hewlett-Packard Palo Alto, Calif.