By which linear and non linear frequency response function was estimated, and nonlinear stiffness coefficient and damping coefficient of the model were optimized by least square method in this paper.

　
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  • 利用該方法對非線(xiàn)性頻響函數進(jìn)行估計，并利用了最小二乘法對模型的非線(xiàn)性剛度系數和非線(xiàn)性阻尼系數進(jìn)行了優(yōu)化。
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