Study on torsional vibration response of compressor flexible rotor system considering collision clearance

IF 2.8 3区工程技术 Q2 MECHANICS

International Journal of Non-Linear Mechanics Pub Date : 2025-01-03 DOI:10.1016/j.ijnonlinmec.2025.105013

Cheng Wang , Zhiqiang Huang , Tao Li , Jie Wang

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引用次数: 0

Abstract

In order to explore the influence of clearance and flexibility on the torsional vibration of the compressor rotor system, a torsional vibration calculation model of the compressor crankshaft system that takes into account the influence of contact clearance and flexibility characteristics is proposed. The simulation results show that frictional impacts occur between the second and fourth rows of the crankshaft bushings and the pin. In addition, the transmission torque of the coupling is lost by 7.1%. Meanwhile, compressor vibration test experiments were carried out, and the vibration speed error of the free end of the crankshaft system under experiment and simulation was 11.9%, which verified the accuracy of the research method and model. On this basis, the dynamic response of torsional vibration of the crankshaft system under different clearances and different driving speeds was further investigated. The results show that the larger the clearance and speed, the worse the matching of power transmission of the crankshaft system, but the standard deviation of piston acceleration shows a high-low-high trend with the increase of rotational speed, indicating that there is room for adjustment of rotational speed. The study has certain guiding significance for improving the operation stability of the compressor.

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来源期刊

International Journal of Non-Linear Mechanics 物理-力学

CiteScore

5.50

自引率

9.40%

发文量

192

审稿时长

67 days

期刊介绍： The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear. The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas. Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.