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Dynamic response of gyroscopic flexible structures with interval parameters
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Journal Article
Dynamic response of gyroscopic flexible structures with interval parameters
2023
Overview
This paper investigates the dynamic response of space flexible structures with control moment gyroscopics (CMGs) in which uncertain-but-bounded parameters are considered. The uncertainties in the dynamic modeling of flexible structure are treated as interval parameters and an interval gyroscopic model is established. Afterwards, a rational series expansion-interval perturbation finite element method (RSE-IPFEM) is proposed to estimate the upper and lower bounds of the interval dynamic response of the gyroscopic flexible structure. Meanwhile, the Monte Carlo method is presented to provide a reference solution. Two numerical cases are given to demonstrate the effectiveness and feasibility of the RSE-IPFEM. The results show that the uncertainties of Young’s modulus and rotor speed have a great impact on the dynamic response of the gyroscopic flexible structure.
Publisher
The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences,Springer Nature B.V
Subject
