【作者】

Zhigang WANG

【摘要】

论文已在中国上海举行的2013年CIMAC大会上发表。论文的版权归CIMAC所有。 The comfort and environment protecting of modern ship are required strictly with the development of marine technology. In 2012, IMO finished the revision of IMO Res. A 468(XII) ’Code of Noise Level On Board Ships Resolution’ .In this revision, the noise level of diesel cabin is required to reduce 5 dB,compared with the initial 110 dB of cabin noise level.The noise level of marine diesel has the important influence on the comfort and acoustic concealment of navy ship, as the main noise source. The noise level evaluation and acoustic contribution analysis of marine diesel are key technical approaches of low noise diesel design. Diesel Structure-borne noise prediction method is first expounded. The acoustic contribution of the main parts of diesel such as oil pan, inlet and exhaust ports, cylinder heads, valve covers is analyzed,and the structure- borne noise level of diesel in different working conditions are calculated by Virtual Lab software aiming at representative large power marine diesel. Noise test of diesel are finished, and the noise distribution of diesel is acquired based on noise test data. Finally, noise control measures of diesel are proposed on the basis of the above analysis. The research result can be applied to the vibration and noise control of marine diesel.

【会议名称】

第27届CIMAC会议

【会议地点】

上海

【下载次数】

1

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