210 振動インテンシティ法を用いた空調用圧縮機における振動エネルギ源探査

概要

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Vibration Intensity (VI) technique is one of the effective ways for identifying the vibration energy sources and vibration transmission paths in the mechanical structure. In this paper, VI was measured by 3 channel method on the compressor casing on which vibration energy sources were not identified. First, vibration energy sources were identified based on the VI vector map. In a low frequency range, vibration energies were mainly popped up from around the welding points. In a high frequency range, vibration energy sources were found in the higher area of the casing than the welding points, and vibration energy flowed into the lower area than the welding points. For the next step, transient vibration energy flow patterns on the casing using the Envelope VI method were analyzed.
一般社団法人日本機械学会の論文
2003-06-04