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重型货车车内声压级预测 被引量:4

Prediction on the Interior Sound Pressure Level of a Heavy-duty Truck
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摘要 本文中对一重型货车在20-1 000Hz的频率范围内的车内声压级进行了预测。首先根据各种工况下实测车内噪声信号的能量分布情况,确定了分析的频率范围。然后基于经过验证的驾驶室有限元模型,综合利用有限元和边界元方法,建立了适用于车内低频声压级预测的有限元-边界元模型;综合利用有限元方法和统计能量分析方法,建立了适用于车内中频声压级预测的有限元-统计能量分析混合模型;利用统计能量分析方法,建立了适用于车内高频声压级预测的统计能量分析模型。最后通过实车试验验证了3种模型。结果表明,在分析频率范围内的大部分频率下,驾驶员右耳侧声压级的计算值与实测值的误差在5d B以内,所建立的模型可用于下一步车内声场的分析和优化。 The interior sound pressure level of a heavy duty truck at the frequency range of 20- 1000 Hz is predicted in this paper. Firstly,the frequency range to be analyzed is determined according to the energy distribution of vehicle interior noise measured under various conditions. Then based on the verified finite element model for cabin and with the integrated utilization of finite element method( FEM) and boundary element method( BEM),a finite element / boundary element model for predicting vehicle interior low-frequency noise is built. With the integrated utilization of FEM and statistical energy analysis( SEA) method,a hybrid finite element / statistical energy analysis model is set up for predicting vehicle interior medium-frequency noise. And a SEA model is also created for predicting vehicle interior high-frequency noise by using SEA method. Finally three models are all verified by real vehicle tests. The results show that for the most part of analysis frequency range,the difference between the calculated value and the measured value is within 5d B,indicating that the models built can be used for the further analysis and optimization of vehicle interior sound field.
出处 《汽车工程》 EI CSCD 北大核心 2016年第2期234-241,共8页 Automotive Engineering
基金 国家自然科学基金(51275262)资助
关键词 重型货车 噪声预测 有限元法 边界元法 统计能量分析 heavy duty truck noise prediction FEM BEM statistical energy analysis
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  • 1王登峰,陈书明,曲伟,刘波,李传兵,赵雪梅.车内噪声统计能量分析预测与试验[J].吉林大学学报(工学版),2009,39(S1):68-73. 被引量:19
  • 2Locke J E, Met C. A finite element formulation for the large deflection random response of thermally buckled beams[J].AIAA Journal, 1990,28(12): 2125 -2131.
  • 3Jeyaraj P, Padmanabhanl C, Ganesan N. Vibration and acoustic response of an isotropic plate in a thermal environment[J]. Journal of Vibration and Acoustics, 2008, 130(5): 1005 -1010.
  • 4Jeyarai P, Ganesan N, Padmanabhan C. Vibration and acoustic response of a composite plate with inherent male rial damping in a thermal environment [J].Journal of Sound and Vibration, 2009, 320(1- 2): 322 -338.
  • 5Kumar B R, Ganesan N, Sethuraman R. Vibroacoustic analysis of functionally graded elliptic disc under thermal environment[J]. Mechanics of Advanced Materials and Structures, 2009, 16(2): 160- 172.
  • 6Behnke M N, Shrma A, Przekop A, et al. Thermalacoustic analysis of a metallic integrated thermal protcc tion system structure[C]//51st AIAA/ASME/ASCE/ AHS/ASC Structures, Structural Dynamics, and Materials Conference. 2010.
  • 7Yang J, Shen H S. Vibration characteristics and transient response of shear-deformable functiomdly gradcd in thermal environments[J]. Journal of Sound and Vibration, 2002, 255(3): 579-602.
  • 8Kim Y W. Temperature dependent vibration analysis of functionally graded rectangular plates[J]. Journal of Sound and Vibration, 2005, 284(3-5): 531-549.
  • 9Shorter P J, Langley R S. Vibro acoustic analysis of complex systems[J]. Journal of Sound and Vibration, 2005, 288(3) : 669- 699.
  • 10Shorter P J, Langley R S. On the reciprocity relationship between direct field radiation and diffuse reverberant loading[J]. Journal of the Acoustical Society of America, 2005, 117(1): 85-95.

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