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Vibration Isolation Research on the Metal Rubber Damping Rod of Payload Attach Fitting

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Abstract:

In order to reduce the vibration load transmitted from the launch vehicle to the spacecraft during the launching stage, a whole-spacecraft vibration isolating method is advanced by modifying ordinary payload attach fitting (PAF). The core component of the PAF is a kind of damping rod produced by composite material encapsulating metal rubber (MR). In this paper, nonlinear equivalent damping model of the damping rod is built up. By using the model, the stiffness, damping and the transmissibility of the damping rod is studied attentively. Simulation results demonstrate that there exist nonlinear relationships between vibration parameters and the stiffness and damping characteristics of the damping rod. The damping rod can isolate high-frequency vibration as well as restrain the resonant peak effectively.

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Info:

Periodical:

Advanced Materials Research (Volumes 391-392)

Pages:

467-473

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.391-392.467

Citation:

Cite this paper

Online since:

December 2011

Authors:

Zhan Ji Wei, Dong Xu Li, Rui Xu

Keywords:

Damping Rod, Metal Rubber, Payload Attach Fitting, Vibration Isolation

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