Study on the influence of unbalanced eccentricity on the dynamic performance of inclined cracked rotor

Biwen Chen; Xiaoyun Gao; Wei Liu; Ben Lu; Changsheng Chen; Guoping Li

doi:10.1117/12.3007211

25 October 2023 Study on the influence of unbalanced eccentricity on the dynamic performance of inclined cracked rotor

Biwen Chen, Xiaoyun Gao, Wei Liu, Ben Lu, Changsheng Chen, Guoping Li

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 128011K (2023) https://doi.org/10.1117/12.3007211
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

In order to find out the effect of unbalanced eccentricity on the dynamic performance of inclined cracked rotor, a respiratory crack modeling method based on the crack open-closed line theory was used to establish the dynamic model of a typical double-disk rotor with cracks, and a comparative calculation of different schemes of unbalanced eccentricity was carried out. The results show that the increase of the unbalance eccentricity will lead to the increase of the transverse amplitudes of the double-disc rotor system, in which the fundamental frequency component of the transverse vibration is significantly carried, and the main frequency component also changes from the dominant position of twice frequency to the dominant position of fundamental frequency.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Biwen Chen, Xiaoyun Gao, Wei Liu, Ben Lu, Changsheng Chen, and Guoping Li "Study on the influence of unbalanced eccentricity on the dynamic performance of inclined cracked rotor", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 128011K (25 October 2023); https://doi.org/10.1117/12.3007211

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