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Dynamic Testing of Elastomers with an Electro-Hydraulic Analog Readout System
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English
Abstract
The dynamic rate of a rubber part must be known to predict adequately the viscoelastic behavior of the rubber part while undergoing dynamic excitation. But accurate and convenient testing systems have not been readily available.
The resonant beam system, which is used by most engineering groups, has definite drawbacks. The new dynamic rate system at Cadillac Motor Car Div. is an electro-hydraulic actuated system which excites the rubber part under closed-loop control. The system features a built-in analog computer which accurately determines the spring rate and damping coefficient for selected values of mean load, cyclic amplitude, frequency, and temperature. The need for such a facility, a description of and the procedure in using the resonant beam and the new system, the advantages of the new system as compared to the resonant beam, and the availability of a commercially built electro-hydraulic analog readout system are discussed.
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Citation
Sturos, J. and Pietkiewicz, C., "Dynamic Testing of Elastomers with an Electro-Hydraulic Analog Readout System," SAE Technical Paper 670163, 1967, https://doi.org/10.4271/670163.Also In
References
- Farnham J. R. “Control of Noise and Vibration in the Unibody.” Paper No. presented at SAE National Automobile Week 143-C Detroit March 1960
- Auda R. S. Cardillo, R. M. “The Importance of Dynamic Testing of Elastomers.” Paper No. SP260 January 1965 SAE 40 51
- Sherrick J. W. Kindgren B. A. “Engine Mountings for Vibration Control.” Paper No. of the Lord Library of Vibration-Shock-Noise Control presented at the Seventh Annual Lecture Series 24 SAE Milwaukee 1959
- Betz E. R. “Studying Structure Dynamics with the Cadillac Road Simulator.” Paper No. presented at the Automotive Engineering Congress 660101 Detroit January 1966