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| Vibration energy transfer characteristics of a centrifugal compressor skid base based on the structural intensity method |
| WANG Fengde1,MA Yunteng2,LUO Jiaqi3,LIU Bing1,XIAO Wensheng2 |
| 1.College of Mechanical and Electronic Engineering，Shandong University of Science and Technology，Qingdao 266590，China；
2.College of Mechanical and Electronic Engineering，China University of Petroleum (East China)，Qingdao 266580， China
3.Offshore Engineering and New Energy R&D Center，COSCO SHIPPING (Qidong) Offshore Co., Ltd.，Qidong 226251，China |
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Abstract Offshore skid mounted centrifugal natural gas compressors are highly integrated and prone to vibration failures. In order to explore the transfer characteristics of vibration energy in compressor skid and reduce the cost of vibration control， the structural intensity method was applied to the research field of vibration control of skid-mounted reciprocating compressor. The acoustic intensity field analysis model of the skid base was established by using self-programming and finite element tools. Combined with data visualization technology， the acoustic intensity analysis and visualization method of the skid base was proposed. The method was applied to solve and visualize the structural acoustic intensity field of the skid base. The transfer characteristics of vibration energy in the skid base and the quantitative relationship between mechanical energy and structural acoustic intensity were studied， the main transfer path， vibration source and vibration manifold of vibration energy in the skid base under the extreme working conditions were revealed. Vibration control measures are proposed for sensitive area of precision equipment. The results show that maximum amplitude of structural sound intensity appears in the compressor installation area， the vibration energy is mainly converted into kinetic energy of the skid base，and the vibration energy is mainly transferred in a divergent manner along the width and height of the skid. The research results can support the vibration control of compressor skids in the engineering field and provide a basis for the study of vibration energy transfer characteristics of plate and beam composite structures in the theoretical aspect.
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Received: 20 June 2023
Published: 28 May 2024
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