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Modal Damping Predictions Using Substructure Testing
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English
Abstract
A method is presented for predicting the modal damping of structures using a combination of analysis and tests of substructures. Damping characteristics of simple substructures and joints are determined by the test program, and analysis is used to predict the modal damping coefficients as a function of the peak kinetic energy of vibration in the mode. Both the magnitude and the form of the damping can be predicted before full-scale test hardware becomes available.
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Authors
Citation
Ellison, A. and Jones, W., "Modal Damping Predictions Using Substructure Testing," SAE Technical Paper 720810, 1972, https://doi.org/10.4271/720810.Also In
References
- Ellison A. M. Jones, W. E. Jr. “Prediction of Structural Damping for Future Saturn Flights, Final Report.” LMSC-HREC D149346 (NASA CR-102534) Lockheed Missiles & Space Co. Huntsville, Ala. December 1969
- Lazan B. J. “Energy Dissipation Mechanisms in Structures With Particular Reference to Material Damping.” Colloquium on Structural Damping, ASME Annual Meeting Atlantic City 1959
- “Structural Damping in Saturn Vehicles and Scale Modes.” NASA TMX-64607 July 1971
- Riley Grady F. “Structural Damping of Winged Structures.” Boeing Co. Huntsville, Ala. August 1971
- Chang C. S. “Damping in Multi-Beam Vibration Analysis, Part II.” LMSC-HREC A710166 Lockheed Missiles & Space Co. Huntsville, Ala. November 1964