摘要:某发电机组台架试验时发出异常噪声。通过测试与分析该机组振动与噪声及曲轴轴系扭振幅值与频谱特征,表明: 机组异常噪声的根本原因为轴系扭振过大;高弹橡胶柱塞的挤压、滑动与摩擦是异常噪声的来源。据此提出了改进建议。 |
关键词: 发电机组 轴系 扭振 噪声 |
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Research on Abnormal Noise of a Generator Set |
Xu Hongling |
Anqing CSSC Diesel Engine Co.,Ltd., Anhui Anqing 243006 |
Abstract:Abnormal noise occurred during the bench test of a generator set. By test and analysis of the vibration and noise of the genset, as well as the torsional vibration amplitude and spectrum charateristics of the crankshaft shafting, it shows that:the torsional vibration of shafting is the primary cause of abnormal noise, the squeezing, sliding and friction of high elastic rubber plunger are the main sources of abnormal noise. Suggestions are given based on the research results. |
Key words: generating set shafting torsional vibration noise |