两齿轮正确啮合和相互耦合接触的SPH计算方法研究

热合买提江?依明1 买买提明?艾尼2

振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 65-69.

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (12) : 65-69.
论文

两齿轮正确啮合和相互耦合接触的SPH计算方法研究

  • 热合买提江•依明1  买买提明•艾尼2
作者信息 +

SPH CALCULATION METHOD FOR PROPER MESHING AND COUPLING CONTACT OF GEARS

  • Rahmatjan Imin1, 2, Mamtimin Geni1
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文章历史 +

摘要

本文在一对齿轮的接触啮合及其冲击的动力学方程基础上,通过调整核函数影响半径提出了一对齿轮正确啮合和相互耦合接触的SPH计算方法,编程实现了正确啮合一对齿轮模型离散成SPH粒子的SPH前处理程序建立了一对啮合齿轮的SPH离散模型并改变工况下进行了啮合冲击过程的动态数值仿真,分析了一对齿轮冲击啮合过程中的最大动应力随时间的变化规律和齿廓面上动应力的分布及变化过程,对比探讨了啮合冲击过程中的动应力传播及接触区域附近的接触动应力分布和变化过程。对齿轮传动系统的动态接触强度评价和优化设计提供新的SPH数值算法。

Abstract

Based on the kinetic equations of a pair of the gears contact meshing and impact, a smoothed particle hydrodynamics (SPH) method is developed to simulate proper meshing and coupling contact of a pair of gears by adjusting influence radius of kernel function. SPH pre-processor program was programmed correct meshing a pair of gear model, and dynamic numerical simulation is carried out by considering the meshing impact process of the gear in different conditions. The maximum dynamic stress change with time after impact of two meshing gears and distribution and changing process of dynamic stresses on tooth- profile surface are analyzed, and the dynamics stress propagation in the meshing impact process and dynamic contact stresses distribution and changing process on the near of contact surface are discussed. The paper provides with an effective new SPH numerical algorithm to dynamic contact strength evaluations and optimization design of gear transmission system.

关键词

齿轮啮合  / SPH计算方法  / 啮合冲击  / 动应力

Key words

Gear meshing / SPH method / Meshing impact / Dynamic stress

引用本文

导出引用
热合买提江?依明1 买买提明?艾尼2. 两齿轮正确啮合和相互耦合接触的SPH计算方法研究[J]. 振动与冲击, 2015, 34(12): 65-69
Rahmatjan Imin1, 2, Mamtimin Geni1 . SPH CALCULATION METHOD FOR PROPER MESHING AND COUPLING CONTACT OF GEARS[J]. Journal of Vibration and Shock, 2015, 34(12): 65-69

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