GY60工业压气机整缸振动特性分析及优化

Entire Casing Vibration Characteristics Analysis and Structural Optimizati on of GY60 In dustrial Compressor

文章首先对GY60工业压气机外缸结构形式做了详细介绍,并采用三维有限元分析方法,对整缸建立了有限元分析模型.对原始方案进行了静刚度、固有频率和动刚度等整缸振动特性分析,根据分析结果对法兰做了进一步优化。优化后分析结果表明整缸水平法兰截面不适宜出现突变连接,而具有良好过渡截面的水平法兰能够显著改善整缸的振动特性。

The structure of GY60 industrial compressor outer casings is detailedly introduced,and 3D FEA model of entire casing is established.The static stiffness,intrinsic frequency and dynamic stiffness of entire casing for original structural are calculated,then the flange structural is optimized based on the analysis results.The optimized analysis results show that it is not good for the cross section of the casing horizontal flange changes drastically,and a horizontal flange with a good transition section can significantly improve the entire casing vibration chacteristics.