三峡大学机械与动力学院,湖北,宜昌,443002
网络首发:2016-01-10,
纸质出版:2016
移动端阅览
田红亮, 陈甜敏, 郑金华, 等. 平行轴圆柱副接触分析[J]. 西安交通大学学报, 2016,50(1):8-15.
Contact Analysis of Cylindrical Pair with Parallel Axes[J]. 2016, 50(1): 8-15.
田红亮, 陈甜敏, 郑金华, 等. 平行轴圆柱副接触分析[J]. 西安交通大学学报, 2016,50(1):8-15. DOI: 10.7652/xjtuxb201601002.
Contact Analysis of Cylindrical Pair with Parallel Axes[J]. 2016, 50(1): 8-15. DOI: 10.7652/xjtuxb201601002.
将古典赫兹理论与现代Majumdar-Bhushan模型相结合
建立了两圆柱分形接触模型。考虑结合部虚拟材料厚度
以及引入圆柱接触面积比
对两圆柱线高副矩形接触面进行了受力分析。数值仿真表明:圆柱接触面积比不大于1; 外接触时圆柱接触面积比小于内接触时; 增加总载荷或减小结合部虚拟材料厚度都将增大圆柱接触面积比; 外接触时实际接触面积小于内接触时; 实际接触面积随着分形粗糙度、材料硬度或结合部虚拟材料厚度的增加而减小; 随着分形粗糙度的增加
产生特定实际接触面积所需要的总载荷增加
微凸体变形量增大; 对于给定总载荷
当分形维数从1.4增加到1.5时
实际接触面积相应增大
但当分形维数从1.5增加到1.9时
实际接触面积转而减小; 内接触时的赫兹应力小于外接触时的赫兹应力。该研究结果可为进一步研究圆柱齿轮传动的齿面接触疲劳强度计算提供参考。
A fractal contact model between two cylinders was set up through combining classic Hertzian theory and modern Majumdar-Bhushan model. The force acting on the linear higher pair rectangular contact plane of two cylinders was analyzed considering the virtual material thickness of joint interface and introducing the cylindrical contact area ratio. Numerical simulation shows that the cylindrical contact area ratio is not greater than one
and the ratio of outer contact is less than that of inner contact. This cylindrical contact area ratio can be increased by increasing the total load or reducing the virtual material thickness of joint interface. The real contact area in exterior contact is less than that in interior contact. As the fractal roughness
material hardness or virtual material thickness of joint interface increases
the real contact area decreases. When the fractal roughness is increased
the total load required to produce a particular real contact area also increases
which results from the fact that an increase in fractal roughness implies an increase in asperity deformation
hence a higher load is required. As the fractal dimension is increased from 1.4 to 1.5
the real contact area first increases under a given total load. However
if the value of fractal dimension is increased from 1.5 to 1.9
the real contact area decreases. The Hertzian stress in internal contact is less than that in external contact. These results may provide a basis for the fatigue strength computation of gear surface contact in cylindrical gear transmission.
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张学良, 温淑花, 兰国生, 等. 平面结合面切向接触阻尼分形模型及其仿真 [J]. 西安交通大学学报, 2011, 45(5): 74-77, 136.
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田红亮, 郑金华, 方子帆, 等. 阻尼系统的特征 [J]. 三峡大学学报: 自然科学版, 2015, 37(2): 75-82.
TIAN Hongliang, ZHENG Jinhua, FANG Zifan, et al. Characters of damping system [J]. Journal of China Three Gorges University: Natural Sciences, 2015, 37(2): 75-82.
田红亮, 方子帆, 朱大林. 赫兹点接触133年 [J]. 三峡大学学报: 自然科学版, 2014, 36(2): 88-97.
TIAN Hongliang, FANG Zifan, ZHU Dalin. 133 years of Hertz point contact [J]. Journal of China Three Gorges University: Natural Sciences, 2014, 36(2): 88-97.
左婧, 徐卫亚, 王环玲, 等. 岩石电镜扫描图像的分形特征研究 [J]. 三峡大学学报: 自然科学版, 2014, 36(2): 72-76.
ZUO Jing, XU Weiya, WANG Huanling, et al. Fractal analysis of SEM image for rocks [J]. Journal of China Three Gorges University: Natural Sciences, 2014, 36(2): 72-76.
田红亮, 赵美云, 郑金华, 等. 新的柔性结合部法向接触刚度和接触阻尼方程 [J]. 西安交通大学学报, 2015, 49(1): 118-126.
TIAN Hongliang, ZHAO Meiyun, ZHENG Jinhua, et al. New equations of normal contact stiffness and damping for flexible joint interface [J]. Journal of Xi'an Jiaotong University, 2015, 49(1): 118-126.
蒲伟,王家序,杨荣松,等.重载下准双曲面齿轮传动界面润滑机理分析.2015,49(11):55-61.[doi:10.7652/xjtuxb2015 11010]
王东,徐超,万强.弹塑性接触粗糙表面切向载荷-位移模型.2015,49(11):122-127.[doi:10.7652/xjtuxb201511020]
刘伟强,张进华,洪军,等.椭圆抛物体形微凸体弹性接触力学模型.2015,49(10):34-40.[doi:10.7652/xjtuxb201510 006]
冯燕,俞小莉,刘震涛.应用热弹塑性理论的结合部法向载荷分形模型.2015,49(9):18-23.[doi:10.7652/xjtuxb201509 004]
褚坤明,王家序,蒲伟,等.混合润滑状态下滤波减速器的啮合冲击分析与修形方法.2015,49(7):140-148.[doi:10.7652 /xjtuxb201507023]
周安安,陈天宁,王小鹏,等.自仿射接触点及其在分形接触理论中的应用.2015,49(6):8-15.[doi:10.7652/xjtuxb2015 06002]
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