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小型柴油发电机组隔声罩结构优化设计研究

毕凤荣 杨晓 马腾

毕凤荣, 杨晓, 马腾. 小型柴油发电机组隔声罩结构优化设计研究[J]. 机械科学与技术, 2018, 37(1): 1-7. doi: 10.13433/j.cnki.1003-8728.2018.0101
引用本文: 毕凤荣, 杨晓, 马腾. 小型柴油发电机组隔声罩结构优化设计研究[J]. 机械科学与技术, 2018, 37(1): 1-7. doi: 10.13433/j.cnki.1003-8728.2018.0101
Bi Fengrong, Yang Xiao, Ma Teng. Design and Optimization of Noise Isolation Hoods for Small Diesel Generator Set[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(1): 1-7. doi: 10.13433/j.cnki.1003-8728.2018.0101
Citation: Bi Fengrong, Yang Xiao, Ma Teng. Design and Optimization of Noise Isolation Hoods for Small Diesel Generator Set[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(1): 1-7. doi: 10.13433/j.cnki.1003-8728.2018.0101

小型柴油发电机组隔声罩结构优化设计研究

doi: 10.13433/j.cnki.1003-8728.2018.0101
基金项目: 

国家科技支撑计划项目(2015BAF07B04)资助

详细信息
    作者简介:

    毕凤荣(1965-),副教授,博士,博士生导师,研究方向为振动噪声控制、汽车动力学,fr_bi@tju.edu.cn

Design and Optimization of Noise Isolation Hoods for Small Diesel Generator Set

  • 摘要: 采用实验手段研究了小型柴油发电机组的噪声源和噪声特性,对不同频率范围的噪声提出了具体可行的隔声罩结构优化措施。针对结构隔声量,分析板结构质量是影响隔声罩隔声量的主要因素,采用拓扑优化方法进行优化设计,使1 000 Hz频率以下噪声隔声量达13.16 dB (A);对隔声罩通风口处的声能泄露,确定中高频噪声为噪声控制主要目标,在考虑管道内存在高次波传播的情况下,分析管道隔板位置和大小对传递损失的影响,采用遗传算法设计和优化通风管道结构,减少高次波的传播,使1 000 Hz~3 500 Hz频率范围内噪声传递损失达30.3 dB (A)。通过以上措施,小型柴油发电机组7 m处的噪声降低至60.7 dB (A)。
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出版历程
  • 收稿日期:  2016-10-14
  • 刊出日期:  2018-01-15

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