人字齿轮减振修形优化设计

蒋进科;方宗德;贾海涛

振动与冲击 ›› 2015, Vol. 34 ›› Issue (2) : 9-13.

PDF(3314 KB)
PDF(3314 KB)
振动与冲击 ›› 2015, Vol. 34 ›› Issue (2) : 9-13.
论文

人字齿轮减振修形优化设计

  • 蒋进科1,方宗德1,贾海涛2
作者信息 +

Optimal design of minimum vibration for modified double helical gear

  • JIANG Jin-ke1,FANG Zong-de1,JIA Hai-tao2
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文章历史 +

摘要

通过理论齿面与修形曲面叠加设计人字齿轮修形齿面,结合TCA、LTCA技术,综合考虑轮齿刚度、轴向窜动及啮合冲击激励,建立人字齿轮啮合型弯-扭-轴-摆10自由度动力学模型。以LTE幅值、轴向力及振动加速度最小为目标,通过优化确定最佳修形齿面。研究表明,轴向窜动与修形可共同改善齿面载荷分布;转速增加啮合冲击激励较刚度激励、轴向窜动激励振动更明显,刚度激励与冲击激励为引起啮合线方向振动的主要原因,而轴向位移激励对啮合线方向振动无影响;轴向位移激励为引起轴向、扭摆方向振动的主要原因;修形可降低啮合冲击、轴向窜动量、轮齿刚度及刚度波动,能有效降低系统振动。

Abstract

A method based on the minimum amplitude of LTE and axis force and vibration were proposed to reduce the vibration of double helical gears. Firstly, the modified tooth surfaces were represented by a sum of two vector functions that determined the theoretical tooth surface and the deviations surface. Secondly, a 10-DOF vibration model was established considering time-varying meshing stiffness and corner meshing impact and axial motion excitations based on TCA、LTCA. Finally, a improved algorithm was applied to optimize the parameters of modified pinion to get the best performance. The results show that the loads then tend to be uniform totally when considering both modification and axial motion, besides, torsional vibration mainly result from corner meshing impact and meshing stiffness excitation which have little effect on axial vibration , and is more sensitive to the impact than other excitations, meanwhile, the axial motions excitation contribute to both axial and swing vibration. In brief, the vibration decrease greatly because of smaller excitations with modified double helical gears.

 

关键词

人字齿轮 / 修形 / 振动 / 优化 / 轴向位移

Key words

double helical gear / modification / vibration / optimal design / axial displacement

引用本文

导出引用
蒋进科;方宗德;贾海涛. 人字齿轮减振修形优化设计[J]. 振动与冲击, 2015, 34(2): 9-13
JIANG Jin-ke;FANG Zong-de;JIA Hai-tao. Optimal design of minimum vibration for modified double helical gear[J]. Journal of Vibration and Shock, 2015, 34(2): 9-13

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