When the design driving loads are sine dwell and acoustic, damping becomes a critical issue in the dynamic analysis of a satellite; however, it remains one of the least understood aspects of dynamic response calculations. Understanding the different ways the damping contributes to the overall dynamics of the satellite, will enable accurate predictions of the aerospace vehicle's modal responses in an earlier stage of development.

At ATA new analytical methods have been developed to allow the prediction of damping based on a mode-by-mode basis, accounting for the difference in bending membrane behavior of shells that is critical to accurate estimation of the damping as a function of frequency. ATA will enable you to get accurate and timely predictions of modal damping to allow damping issues to be addressed in the preliminary design and detailed design level of the aerospace vehicle's development.

Technical Papers

Baker, M., J. Hansen, and F. M. Payne, "Impact of Dynamics on the Design of the RL10-2 Extendible Carbon-Carbon Exit Cone."

Baker, M., P. Blelloch, T. Burton, and F. M. Payne, "Design Damping Treatment for the Delta III RL10B-2 Deployable Nozzle."

Jayasinghe, S., and C. Johnson, "STS Coupled Damping," Thirty Third International SAMPE Symposium and Exhibition, Anaheim, California.