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A Random Vibration Control System for Testing a Single Test Item with Multiple Inputs
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English
Abstract
This paper describes a multiple shaker control system developed at Sandia National Laboratories for driving a single test item with random excitation. The system allows for cross-coupled mechanical systems with partially coherent control points. The system uses time-domain randomization to generate the continuous Gaussian drive signals.
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Citation
Smallwood, D., "A Random Vibration Control System for Testing a Single Test Item with Multiple Inputs," SAE Technical Paper 821482, 1982, https://doi.org/10.4271/821482.Also In
References
- Fisher D. Posehn, M. “Digital Control System for a Multiple-Actuator Shaker,” 47th Shock & Vibration Bulletin, Part 3 79 96 September 1977
- Smallwood, D. O. “Multiple Shaker Random Control With Cross Coupling,” 1978 Proceedings of the IES 341 347 April 1978
- Smith, G. “Digital Control Techniques for a Three-Axis Vibration Test System,” SAE Paper No 801233 October 1980
- Dodds C. J. Robson, J. D. “Partial Coherence in Multivariate Random Processes,” Journal of Sound and Vibration 42 2 1975 243 249
- Smallwood, D. O. “Random Vibration Testing of a Single Test Item With a Multiple Input Control System,” 1982 Proceedings of the IES 42 49 April 1982
- Tebbs D. Hunter, N. “Digital Control of Random Vibration Tests Using a Sigma V Computer,” Proceedings of the IES 36 43 April 1974