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- Title
基于接触非线性的箔片结构力学特性分析.
- Authors
黎荣健; 肖曙红; 张岩
- Abstract
The nonlinear mechanics problem of contact between top foil and bump foil in foil bearings is nonlinear and time-varying. A theoretical model considering contact nonlinearity is established to study the mechanical behavior of foil structure. The incremental iteration method and Newton - Raphson method are used to solve the system equilibrium equations. The relationship between deformation amount and response force of foil structure and energy dissipation of foil are obtained through rotor push-pull simulation using this model. The results show that; friction is a main factor for hysteretic behavior in foil structure, with the increase of friction coefficient, the stiffness of foil structure increases, and the area of hysteretic curve also increases; in a loading and unloading circuit, the loading process has a higher static load capacity than unloading process; the bump foil near fixed end has higher stiffness than that near free end.
- Subjects
NONLINEAR mechanics; CONTACT mechanics; ENERGY dissipation; LOADING &; unloading; NEWTON-Raphson method; CURVES
- Publication
Bearing, 2023, Issue 10, p24
- ISSN
1000-3762
- Publication type
Article
- DOI
10.19533/j.issn1000-3762.2023.10.004