冲击载荷下的齿轮动应力变化规律数值分析

唐进元 彭方进 黄云飞

振动与冲击 ›› 2009, Vol. 28 ›› Issue (8) : 138-143.

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PDF(3450 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (8) : 138-143.
论文

冲击载荷下的齿轮动应力变化规律数值分析

  • 唐进元 彭方进 黄云飞
作者信息 +

Numerical analysis of dynamic stress variation law of spur gear under impact loads

  • Tang Jinyuan Peng Fangjin Huang Yunfei
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文章历史 +

摘要

基于虚拟制造方法建立了滚剃工艺的精确圆柱直齿轮三维几何模型,并进行线外啮合冲击动态仿真分析,得到了可靠的齿轮动应力变化规律。仿真结果表明:冲击加载时,不同工况下齿根两侧最大动应力的出现位置呈对称分布;冲击载荷下,齿根最大应力大于ISO标准静强度理论值,最大应力位置比ISO标准确定的最危险截面位置偏高;冲击载荷峰值相同时,冲击时间越短,产生的动应力越大。

Abstract

Established precise three-dimension model of spur gear based on hob-shaving process with virtual manufacturing approach. Carried out dynamic simulation analysis based on corner contact. Obtained the dynamic stress variation law of the gear under impact loads. The simulation results shows that the position of the maximum dynamic stress of the root of tooth under different condition appears in the both sides symmetrically, that the dynamic stress was bigger than the ISO Standard theoretic static strength under impact loads, and that the position of the maximum dynamic stress is on the high side of the dangerous section determined by ISO Standard, that the dynamic stress caused by the engaging-in impact was the maximum under different condition, and that the shorter the impact time is, the larger the dynamic stress is.

关键词

冲击载荷 / 有限元分析 / 动应力 / 齿轮

Key words

Impact load / FEM analysis / Dynamic stress / Gear

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导出引用
唐进元 彭方进 黄云飞. 冲击载荷下的齿轮动应力变化规律数值分析[J]. 振动与冲击, 2009, 28(8): 138-143
Tang Jinyuan Peng Fangjin Huang Yunfei . Numerical analysis of dynamic stress variation law of spur gear under impact loads[J]. Journal of Vibration and Shock, 2009, 28(8): 138-143

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