压缩机机体声辐射的模态特性研究

采用有限元和边界元方法建立了轻流体介质中复杂结构振动声辐射的模态分析模型，可计算结构的声辐射模态频率、模态场点声压、模态辐射声功率和声辐射效率等声场特性参数。对K5206NM压缩机机体进行了模态分析和声辐射模态参数计算，获得了机体的声辐射特性，从而为机体的低噪声设计提供了依据。

Acoustic Radiation Modal Analysis of Compressor Block

Using Finite Element and Boundary Element Method, a modal analysis model of complex structural acoustic radiation in light fluid is proposed for computing modal acoustic radiation frequency, farfield sound pressure, modal radiated acoustic power and acoustic radiation efficiency. Modal analysis of K5206NM compressor block is done, and the acoustic radiation modal parameters are calculated, then the acoustic radiation properties of the compressor block can be obtained, which provide the basis for the low noise compressor block design.