Research on optimal design of vibration reduction of centrifugal air conditioning chiller based on particle damping
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Xiamen University, China
State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation, China
Submission date: 2022-08-29
Final revision date: 2022-12-03
Acceptance date: 2022-12-03
Online publication date: 2023-01-18
Publication date: 2023-01-30
Corresponding author
Hua Liu   

State Key Laboratory of Air-Conditioning Equipment and System Energy Conservation, GERR Electric Appliances, Inc. of Zhuhai, China
Journal of Theoretical and Applied Mechanics 2023;61(1):189-201
Considering vibration of centrifugal air-conditioning chillers at working conditions of 300Hz and 386Hz, a vibration reduction method for centrifugal air-conditioning chillers based on particle damping is proposed. Firstly, the vibration transfer path of the chillers is determined based on dynamic characteristics analysis of the chillers. Secondly, the vibration sensitive area of the compressor is determined by finite element analysis. Then the energy dissipation is calculated by the discrete element method (DEM) to determine the optimal installation scheme of the damper. Finally, the vibration reduction effect of the chillers after arranging the damper is verified by experiments.
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