Study on the effect of dynamic stiffness of supporting structure on dynamic characteristics of the rotor system-Reference-Cited by-同舟云学术

Study on the effect of dynamic stiffness of supporting structure on dynamic characteristics of the rotor system

Published:2023-03-30 Issue:22 Volume:237 Page:5273-5285
ISSN:0954-4062
Container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Author:

Liu Kaining¹²,Luo Zhong¹²³^ORCID,Li Lei¹³,Liu Jiaxi¹³,Jiang Guangyi⁴,Lu Liangwen⁴

Affiliation:

1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, PR China

2. Foshan Graduate School of Northeastern University, Foshan, PR China

3. Key Laboratory of Vibration and Control of Aero-Propulsion Systems Ministry of Education of China, Northeastern University, Shenyang, PR China

4. Shenyang Aeroengine Research Institute, Shenyang, PR China

Abstract

The rotor systems are the critical components of many rotational machines. The dynamic stiffness of the supporting structure affects the dynamic characteristics of the rotor system significantly. The effect can’t be overlooked for obtaining accurate dynamic characteristics. The judgment index of dynamic stiffness influence (DSI) is proposed in this paper to evaluate the degree of dynamic stiffness influence on the dynamic characteristics. The dynamic model of the rotor system considering the dynamic stiffness of supports is established, and the expression of DSI is given. Then the Campbell diagrams and corresponding DSI values for different system parameters under the influence of dynamic stiffness are discussed and analyzed. The effectiveness of DSI is verified by the literature. Besides, an experiment is carried out to verify the effectiveness of the DSI. The results indicate that the effectiveness of DSI can be confirmed by both numerical and experimental cases, and that the DSI can evaluate the degree of dynamic stiffness influence well.

Funder

National Natural Science Foundation of China

fundamental research funds for the central universities

basic and applied basic research foundation of guangdong province

Publisher

SAGE Publications

Subject

Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1177/09544062231163472

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