基于统计能量法的排气管道系统的振动和噪声分析与研究

尹忠俊;陈 兵;岳恒昌;赵爱民

振动与冲击 ›› 2010, Vol. 29 ›› Issue (2) : 159-162.

PDF(1748 KB)
PDF(1748 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (2) : 159-162.
论文

基于统计能量法的排气管道系统的振动和噪声分析与研究

  • 尹忠俊1;陈 兵1;岳恒昌1;赵爱民2
作者信息 +

ANALYZE AND STUDY ON THE VIBRATION AND NOISE FOR EXHAUST PIPING SYSTEM BASED ON STASTICAL ENERGY ANALYSIS

  • Yin Zhong-jun1;Chen Bing1;Yue Heng-chang1;Zhao Ai-min2
Author information +
文章历史 +

摘要

基于统计能量分析(SEA)原理,结合压缩机排气管道系统的实际结构尺寸建立了SEA模型。采用理论及经验结果讨论了统计能量分析法三个重要参数确定,利用现场测试壳体加速度来确定输入功率。运用AutoSEA2004仿真软件预测了距离管道系统外部一定距离的声压级,并与现场测试所得数据进行了对比分析,结果表明,预测管道系统的总声压级为102.7dBA,比实测结果低4.2dB,在500 Hz以上主要频段上,预测曲线与实测曲线吻合较好,为管道系统噪声治理提供了数值仿真依据。

Abstract

Abstract A SEA model of one compressor’s exhaust piping system was established in this paper based on statistical energy analysis (SEA) theory and actual size. In the method developed, the theoretical and experiential results were used to estimate the parameters of SEA and the input power was obtained from the pipe shell acceleration measurement. The sound pressure level at certain distance from out piping system is analyzed by using the software AutoSEA2004, and then compared with the results from the site testing. The comparison result show that the calculation value of piping system’s noise level is 102.7dBA,which is lower than the test value by 4.2 dB; The predictive curve accords with the actual at main frequency band of 500Hz. The simulation results provide the numeral simulation basis for the piping system noise control.

关键词

管道系统 / AutoSEA2 / 统计能量分析 / 声压级

Key words

Piping system / AutoSEA2 / statistical energy analysis (SEA) / sound pressure level

引用本文

导出引用
尹忠俊;陈 兵;岳恒昌;赵爱民. 基于统计能量法的排气管道系统的振动和噪声分析与研究[J]. 振动与冲击, 2010, 29(2): 159-162
Yin Zhong-jun;Chen Bing;Yue Heng-chang;Zhao Ai-min. ANALYZE AND STUDY ON THE VIBRATION AND NOISE FOR EXHAUST PIPING SYSTEM BASED ON STASTICAL ENERGY ANALYSIS[J]. Journal of Vibration and Shock, 2010, 29(2): 159-162

PDF(1748 KB)

Accesses

Citation

Detail

段落导航
相关文章

/