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首页> 外文期刊>International Journal of Marine Engineering Innovation and Research >Noise Reduction in Ship Engine Room by Optimisation of Muffler Design
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Noise Reduction in Ship Engine Room by Optimisation of Muffler Design

机译：消声器设计优化船舶发动机室的降噪

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Noise level onboard, particularly in the engine room, requires a careful monitor to not causing any disruption or discomfort to the shipboard environment. For monitoring purposes, an appropriate alternative system can be applied if the noise level exceeds the limit set by applicable regulations such as IMO, ABS, and LR. The current research uses computational methods to map noise contours in the engine room and recommends some muffler models to reduce the noise level in the MV Natuna Express engine room. Based on the field measurement, the noise level exceeds the Standards value at a maximum of 110 dB. Mapping and designing of the muffler models were based on the measurement data. Simulation results show that greater transmission loss hence noise reduction is affected significantly by the expansion of muffler chamber length and diameter. Modification of the muffler chamber using plywood and the tailpipe on both ME ON Generator ON and ME OFF Generator ON conditions respectively reduce the noise approximately by 24.94 dB and 10.50 dB.
机译：噪音水平在船上，特别是在发动机室内，需要仔细的监视器不会导致船上环境的任何破坏或不适。为了监视目的，如果噪声水平超过由IMO，ABS和LR等适用法规所设定的限制，则可以应用适当的替代系统。目前的研究采用计算方法在发动机室内映射噪声轮廓，并推荐一些消声器模型，以减少MV Natuna Express engin室中的噪声水平。基于现场测量，噪声水平最多超过110 dB的标准值。消声器模型的映射和设计基于测量数据。仿真结果表明，通过扩展消声器室长度和直径，降噪了更大的传输损失。使用胶合板和尾管在发电机上使用胶合板和尾管的修改，并在条件下关闭发电机，分别降低了噪声大约24.94dB和10.50 dB。

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