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某商用车轰鸣问题的分析与控制 被引量:14

Analysis and Control of Booming Noise of a Commercial Vehicle
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摘要 本文中针对某商用车定置工况发动机怠速转速附近驾驶室轰鸣问题进行了仿真和实验研究。首先通过主观评价初步判定问题工况,而发动机等部位的振动和驾驶室内轰鸣噪声信号测量结果发现,怠速转速附近(810-950r/min)驾驶室存在明显的轰鸣噪声。接着利用阶次分析法和模态分析法分析可知,发动机振动经悬置传递到驾驶室引起共振,进而引发轰鸣噪声。最后通过对比优化方案,采用遗传算法对悬置进行了优化。结果表明,优化后悬置振动传递率降低了46.25%,驾驶室轰鸣噪声降低了8.79d B。 In this paper,the simulation and experimental study on the cab booming noise of a commercial vehicle under stationary condition near engine idle speed are carried out. Firstly the problematic condition is preliminarily determined using subjective evaluation,and the measurement results of the vibrations of engine and other locations and the cab booming noise signals find that there is obvious booming noise in the cab when engine works near idle speed( 810 r/min-950 r/min). Then it is revealed by order analysis and modal analysis that the vibration of engine transmits through engine mounts to the cab,causing resonance and hence booming noise. Finally based on optimization schemes comparison,the engine mounts are optimized using genetic algorithm. The results show that after optimization the vibration transmissibility of engine mounts reduces by 46. 25%,and the cab booming noise is lowers by 8. 79 d B.
机构地区 吉林大学
出处 《汽车工程》 EI CSCD 北大核心 2018年第2期214-220,共7页 Automotive Engineering
基金 国家自然科学基金(51205158)和中国博士后科学基金(2013M541294)资助.
关键词 轰鸣噪声 阶次分析 模态分析 悬置优化 booming noise order analysis modal analysis mount optimization
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  • 1赵春,周登峰.汽车车内主要噪声源控制方法[J].噪声与振动控制,2007,27(4):69-72. 被引量:2
  • 2刘东明,项党,罗清,郑金鑫.传递路径分析技术在车内噪声与振动研究与分析中的应用[J].噪声与振动控制,2007,27(4):73-77. 被引量:84
  • 3惠巍,刘更,吴立言.车内噪声预测与面板声学贡献度分析[J].噪声与振动控制,2006,26(5):62-66. 被引量:39
  • 4Kang S W. Structural-acoustic Coupling Analysis of the Vehicle Passenger Compartment with the Roof, Air-gap, and Trim Boundary [ J ]. Journal of Vibration and Acoustics, 2000,122 : 196 - 202.
  • 5Dooms D, Degrande G, De Roeck G, et al. Finite Element Modeling of a Silo Based on Experimental Modal Analysis [ J]. Engineering structures, 2006, 28:532 - 542.
  • 6Capoluongo P, Ambrosino C, Campopiano S, et al. Modal Analysis and Damage Detection by Fiber Bragg Grating Sensors [ J ]. Sensors and Actuators A ,2007,133:415 - 424.
  • 7Santos F M, Temarel P, Soares C G. Modal Analysis of a Fast Patrol Boat Made of Composite Material [ J ]. Ocean Engineering, 2009,36 : 179 - 192.
  • 8郭荣,万钢,赵艳男,周江彬.车内噪声传递路径分析方法探讨[J].振动.测试与诊断,2007,27(3):199-203. 被引量:60
  • 9庞剑.汽车噪声与振动[M].北京:北京理工大学出版社,2006:236-245.
  • 10Gregor Koners, Panel Noise Contribution Analysis: An Experimental Method for Determining the Noise Contributions of Panels to an Interior Noise, SAE TECHNICAL PAPER SERIES[ J]. 2003 - 01 - 1410.

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