基于FEM和BEM法的大型立式齿轮箱振动噪声计算及测试分析

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振动与冲击 ›› 2012, Vol. 31 ›› Issue (4) : 123-127.

论文

基于FEM和BEM法的大型立式齿轮箱振动噪声计算及测试分析

焦映厚1; 孔霞2; 蔡云龙2; 张介禄2; 周亚政2

作者信息 +

Vibration noise calculation and testing analysis of the large vertical planetary transmission gearbox based on FEM and BEM

Jiao Ying-hou1; Kong Xia 2; Cai Yun-long2; Zhang Jie-lu2 ;Zhou Ya-zheng2

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摘要

根据某大型立式行星传动齿轮箱的结构和安装特点，基于FEM法建立了该齿轮箱的和有限元模型，对其进行了振动模态分析，计算了其模态频率和稳态不平衡响应；基于BEM法建立了该齿轮箱的外声场边界元模型，导入了齿轮箱振动稳态不平衡响应结果作为声学边界条件，对辐射声场进行了数值计算和仿真分析。通过对齿轮箱进行现场振动和噪声测试分析，得到的测试结果与理论计算结果较为一致，表明了理论计算的可行性和准确性

Abstract

According to the structure and installation of large vertical planetary transmission gearbox, the finite element model are established based on FEM to carry out the vibration modal analysis and calculate the modal frequency and stable unbalance response. The boundary element model of gear box’s surrounded sound field is established based on BEM to calculate and simulate the radiation sound pressure with the result of stable unbalance response. The results of testing and theoretical calculation are corresponding, which indicates the rationality and accuracy of theoretical calculation

导出引用

焦映厚;孔霞;蔡云龙;张介禄;周亚政. 基于FEM和BEM法的大型立式齿轮箱振动噪声计算及测试分析[J]. 振动与冲击, 2012, 31(4): 123-127

Jiao Ying-hou;Kong Xia;Cai Yun-long;Zhang Jie-lu;Zhou Ya-zheng . Vibration noise calculation and testing analysis of the large vertical planetary transmission gearbox based on FEM and BEM[J]. Journal of Vibration and Shock, 2012, 31(4): 123-127