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Studying Structure Dynamics with the Cadillac Road Simulator
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English
Abstract
An automobile structure is a complex, spring-mass system which is excited into various modes of vibration by road inputs. The vibrational modes falling in the frequency range of 5-30 cps are termed structure shake, and produce disturbances seen and felt by the vehicle occupant. The Road Simulator is a four-channel, servo controlled hydraulic exciter system used to simulate road excited structure vibrations in the laboratory. Vertical inputs are provided into the contact patch of each tire to obtain road simulation. The need for such a facility, developing its specifications, problems which had to be overcome, a complete description of the system, and some typical uses are discussed.
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Citation
Betz, E., "Studying Structure Dynamics with the Cadillac Road Simulator," SAE Technical Paper 660101, 1966, https://doi.org/10.4271/660101.Also In
References
- Rasmussen, R. E. “A Device for Measuring the Dynamic Vertical Spring Rate of a Rolling Tire.” General Motors Research Laboratories Technical Memorandum No. 24-891 Sept. 28 1964
- Rasmussen, R. E. “The Effect of Parameter Changes on the Response of a Mathematical Model for Automobile Beaming Shake.” General Motors Research Laboratories Report No. EM-41 Sept. 7 1965
- Spangler E. B. Kelly W.J. “GMR Road Profilometer.” General Motors Research Laboratories Research Publication No. GMR-452 Dec. 22 1964
- Johnson H. C. “Application of Electro-Hydraulic Servo Control to Physical Testing.” Proc. National Conference on Fluid Power XVIII Oct. 22-23 1964
- “Extension of Materials Testing Capabilities by Use of Electro-Hydraulic Closed Loop Systems.” MTS Division Research, Inc. Minneapolis, Minn
- Butzow G. N. Churchill R. W. “Electro Hydraulic Fatigue Test Systems Capabilities.” Paper presented at SESA Annual Meeting Cleveland Oct. 28-30 1964
- Adler J. A. “The Case for Hydraulic Shakers.” Test Engrg. April 1963