- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | SHI Ce, XU Fangchao, SUN Feng, JIN Junjie, Tong Ling, ZHOU Qing, ZHANG Xiaoyou. Mechanical Properties of Scroll Compressor with Permanent Magnetic Compliance Mechanism[J]. Journal of Southwest Jiaotong University, 2022, 57(3): 597-603. doi: 10.3969/j.issn.0258-2724.20210986
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To reduce the mechanical contact of scroll compressor during operation, a novel permanent magnetic compliance mechanism is proposed according to the structural characteristics of oil-free scroll compressor, and its mechanical properties are analyzed. Firstly, the working principle of the permanent magnetic compliance mechanism is analyzed, the magnetic force model is established by the virtual displacement method, and the magnetic induction intensity at the working air gap of permanent magnetic compliance mechanism is analyzed by using theoretical formula, finite element simulation and experimental measurements. Secondly, the relationship between structural parameters and mechanical characteristics of permanent magnetic compliance mechanism is analyzed by theoretical formula calculation and finite element simulation. Finally, the mechanical properties of the permanent magnetic compliance mechanism are verified by the performance parameters of the magnetic scroll compressor and the magnetic force test. The results show that within a certain range, the radial magnetic force of the permanent magnetic compliance mechanism is proportional to the radial displacement and inversely proportional to the axial displacement. Radial displacement has approximately linear relationship with stiffness coefficient when permanent magnetic compliance mechanism works. Within the working distance, the minimum axial magnetic force of the single group magnetic ring with permanent magnetic compliance mechanism is 8.73 N, and the radial force on working trajectory is 4.8 N, which meets the working requirements of the magnetic scroll compressor.
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