| CA6102汽油机早期高速异响试验分析 |
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| 引用本文： | 何若天. CA6102汽油机早期高速异响试验分析[J]. 内燃机工程, 1990, 11(4): 71-78 |
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| 作者姓名： | 何若天 |
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| 作者单位： | 长春汽车研究所 |
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| 摘 要： |
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| 关 键 词： | 汽油机 高速 异响 噪声 CA6102型 |
Experimental Analysis on Abnormal Sound Occured in Early High Speed Running of CA 6120 Gasoline Engine |
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| He Ruotian. Experimental Analysis on Abnormal Sound Occured in Early High Speed Running of CA 6120 Gasoline Engine[J]. Chinese Internal Combustion Engine Engineering, 1990, 11(4): 71-78 |
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| Authors: | He Ruotian |
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| Affiliation: | Changchun Automotive Research Institute |
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| Abstract: | The abnormal sound of CA 6102 gasoline engine occured in theperiod of early high speed running is defined and its mechanism generated is stated in this paper.Based on the identification of noise sources,the tone characteristic of abno-rmal sound has been expounded.The exciting source and the body of resonance areidentified by applying the morden noise and vibration measuring technique.The ex-periment indicates that the abnormal sound is a combined result of low frequency re-sonance of cylinder head cover together with engine base and each order of harmonicwave frequencies.Meanwhile,the effects of the abnormal sound and its reductionmeasures have also been discussed. |
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| Keywords: | Abnormal Sound Noise Gasoline Engine |
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