Influence of modifying on the dielectric and conductive properties of polyimide composite

Weng, Lei; Zhang, Bo; Zeng, Chuang; Xi, Baofeng; Zheng, Xiaowei

doi:10.1109/icpadm.2015.7295429

Cited by 1 publication

(1 citation statement)

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“…In improving the cage performance, Song 9 shorten the beam of the traditional cage, which reduces the manufacturing difficulty of the cage. Li and Chu 10 and Zhang and Lei 11 studied the influence of cage material and shape conditions, the study showed that the tensile strength of polyimide composites is enhanced effectively by adding a certain amount of carbon fiber and glass fiber. Shao and Xu 12 introduced PEEK material into the cage design.…”

Section: Introductionmentioning

confidence: 99%

Cage structural topology optimization considering thermo-mechanical coupling

Yang

Guo

Weng

et al. 2022

Advances in Mechanical Engineering

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The performance of the cage can directly affect the service life of the bearing. This paper presents a cage topology optimization method for improving the heat dissipation and structural stiffness. Firstly, a multi-objective structural topology optimization model is established based on the SIMP method and MMA algorithm, the effects of force and thermal load are considered comprehensively. Secondly, considering the centrifugal force and frictional heat, under the conditions of a given volume constraint, the bearing cage topology optimization model is carried out with heat dissipation weakness and compliance as the optimization objectives. Using iterative calculations based on the MMA algorithm and boundary smoothing processing, the structure with the optimal material layout is obtained. Finally, compared with the initial structures, the maximum temperature reduces about 27% and the maximum stress reduces about 14.8%. The results show that topology optimization can provide a reference for the design of bearing cages, which can improve the structural performance while reducing weight.

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Section: Introductionmentioning

confidence: 99%