Dynamical reliability of internally resonant or non-resonant strongly nonlinear system under random excitations
Mechanical Systems and Signal Processing（2019）
摘要
•Dynamical reliability of MDOF strongly nonlinear system is comprehensively studied, including resonance and non-resonance.•Decoupled non-resonantly averaged system can simplify the problem greatly.•High accuracy and high efficiency are demonstrated using a concrete numerical example.
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关键词
Gaussian white noise,Internal resonance,Stochastic averaging method,Conditional reliability function,Mean first- passage time
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