关键词: 冷藏车；冷冻压缩机；一阶固有频率；优化设计

Abstract: In view of the frequent failure of refrigerated vehicles in the market, which leads to the deterioration of frozen goods and huge economic losses, through the failure analysis of refrigerated vehicles, it is understood that the fracture of refrigeration compressor support is one of the main failure reasons. Using the combination of Computer Aided Engineering (CAE) and road test verification means, this paper analyzes the fault analysis and optimal design of the refrigeration compressor support of the refrigerator truck, analyzes the structural strength, first-order natural frequency and fatigue stress of the support, and expounds the design and development points and verification methods of the refrigeration compressor support. The refrigerator truck compressor bracket designed according to the development method in this paper has no fracture failure mode after sales, and has achieved great success. This method has passed the examination of the market. The development method of refrigerator truck compressor support proposed in this paper can provide reference for designers, avoid abnormal operation of refrigeration unit due to support fracture, and improve the overall development capacity and quality level of China's refrigerator truck.

Key words: Refrigerator truck; Refrigeration compressor; First-order natural frequency; Optimization design