| 采掘机械齿轮轮齿断裂过程仿真与断裂强度 |
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| 引用本文： | 杨生华.采掘机械齿轮轮齿断裂过程仿真与断裂强度[J].煤矿机电,2004(5):35-38. |
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| 作者姓名： | 杨生华 |
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| 作者单位： | 煤炭科学研究总院,上海分院,上海,200030 |
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| 基金项目： | 上海自然科学基金资助项目 (编号 :992A1 40 58) |
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| 摘 要： | 本文根据断裂力学基本理论,研究了齿轮齿根裂纹形成和扩展,使用有限元法研究并计算了齿轮齿根应力和齿根应力强度因子、裂纹形成位置和扩展方向。通过齿轮断裂过程有限元仿真,分析了齿根应力强度因子随裂纹深度的变化和轮齿断裂路径,说明了齿轮断裂强度的计算方法和断裂过程仿真的意义。
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| 关 键 词： | 有限元法 齿根应力 齿根应力强度因子 断裂过程仿真 断裂强度 |
| 文章编号： | 1001-0874(2004)05-0035-04 |
| 修稿时间： | 2004年7月16日 |
The Fracture Process Simulation and Fracture Strength of Gear Tooth in Mining Machine |
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| YANG Sheng-hua.The Fracture Process Simulation and Fracture Strength of Gear Tooth in Mining Machine[J].Colliery Mechanical & Electrical Technology,2004(5):35-38. |
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| Authors: | YANG Sheng-hua |
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| Abstract: | The initiation and expansion of the root crack of gears is investigated according to the fracture mechanics principles. The root stress and root stress intensity factor with the crack initiating position and expansion direction are studied and computed by the finite element method. By means of the fracture process simulation the variation of the root stress intensity factor with the crack propagation trajectory and the fracture process are analyzed, and the method of the calculation of the tooth fracture strength and the significance of the fracture process are explained. |
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| Keywords: | finite element method root stress root stress intensity factor fracture process simulation fracture strength |
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