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• Ngôn ngữ: vie
• Ký hiệu phân loại: 519.7 Programming
• Thông tin xuất bản: Vietnam Journal of Mechanics, 2014
• Mô tả vật lý: 307-320
• Bộ sưu tập: Metadata
• ID: 506667

Tóm tắt

A weighted dual mean square criterion for stochastic equivalent linearization method is considered in which the forward and backward replacements are weighted. The normalized weighting coefficient is suggested as a piecewise linear function of the squared correlation coefficient and is defined by the least square method based on the data of Lutes-Sarkani oscillator. The application to two typical nonlinear systems subjected to random excitation shows accurate approximations when the nonlinearity varies from the weak to strong levels.