Response Analysis of 500KV Circuit Breaker with Nonlinear Damping Devices under Seismic Excitation

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概要

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• This paper deals with a fundamental research for the aseismic design of a 500KV air circuit breaker. In particular, effects of nonlinearity of the damping device, which is connected to stays, on the seismic response of the circuit breaker are theoretically investigated. The model for the analysis is constructed of a simplified dynamic model of the circuit breaker structure, and it is assumed that the seismic wave is a nonstationary Gaussian white noise in the horizontal direction. The Fokker-Planck equation is first established with the aid of equations of motion which are derived without consideration of geometrical nonlinearities. Further, moment equations are introduced with the assumption of Gaussian random responses, ad the time history of the mean squared response is obtained by numerical solutions of the moment equations. From this result, effects of various parameters of the structure were made clear. The transient response to the impulse acceleration is also investigated through simulation by a digital computer.

• 一般社団法人日本機械学会の論文

著者

• Arii Mitsuru

  Manager Tokyo Shibaura Electric Co. Ltd.

• Fujimoto Shigeru

  Graduate Student Keio University

• Shimogo Toro

  Professor Of Mechanical Engineering Keio University

関連論文

• Response Analysis of 500KV Circuit Breaker with Nonlinear Damping Devices under Seismic Excitation

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