|
|
- 2016
考虑接触刚度的含间隙铰接副动态磨损分析
|
Abstract:
针对大多数含间隙铰接副的磨损计算都非常复杂,精度和效率不能兼得,且很少能够与含间隙铰接副系统的动力学分析动态结合起来考虑表面接触刚度对磨损影响的问题,提出了一种新的含间隙铰接副磨损分析方法。基于无质量杆？驳？簧阻尼模型建立考虑接触刚度影响的含间隙铰接副系统动力学分析模型,利用非对称Winkler弹性基础模型计算接触压力分布,？用Archard磨损理论计算接触表面磨损量,对接触表面轮廓实时更新得出含间隙铰接副的动态磨损量。分析结果表明,在表面接触刚度较小时含间隙铰接副的动态磨损严重,且随系统转速的变化呈现出不同的变化趋势,反映了不同接触刚度下含间隙铰接副的动态磨损趋势。该方法计算精度和计算效率较高且充分考虑了表面接触刚度对含间隙铰接副动态磨损的影响,对含间隙铰接副系统的设计和动力学分析及磨损预测具有一定的指导意义。
Most of wear calculations for clearance joint are very complicated and the accuracy and efficiency can not be satisfied simultaneously, and the dynamic wear analysis rarely combines with the dynamics analysis of clearance joint system considering the effect of different surface contact stiffness. A dynamic wear analysis for joint clearance considering different contact stiffness is proposed. The mass？？less？？link and spring？？damping model is adopted to conduct dynamics analysis of clearance joint system considering different contact stiffness. The nonsymmetric Winkler surface model is taken to evaluate the contact pressure distribution, and the Archard wear theory is employed to calculate the worn mass of contact surface. The surface profile renews at real time with the wear calculation result, then the dynamic wear prediction of clearance joint is acquired. The dynamic wear trend for different contact stiffness is discussed. The proposed strategy fully considers the effects of contact stiffness on the dynamic wear of clearance joint, and reflects the dynamic wear trend of clearance joint surface for different contact stiffness with higher accuracy and efficiency
| [1] | SU Yuewen, CHEN Wei, ZHU Aibin, et al. Numerical analysis of wear coupling with dynamics behavior of machine ［J］. Tribology, 2009, 29(1): 50？？54. |
| [2] | WANG Chentao. Tribology problems in natural and artificial joint ［J］. Journal of Medical Biomechanics, 2009, 24(5): 317？？324. |
| [3] | ［10］王国庆, 刘宏昭, 何长安. 含间隙曲柄滑块机构运动副动态磨损研究 ［J］. 机械强度, 2006, 28(6): 849？？852. |
| [4] | ［1］宿月文, 陈渭, 朱爱斌, 等. 铰接副磨损与系统动力学行为耦合的数值分析 ［J］. 摩擦学学报, 2009, 29(1): 50？？54. |
| [5] | ［2］王成焘. 天然与人工关节中的摩擦学问题 ［J］. 医用生物力学, 2009, 24(5): 317？？324. |
| [6] | ［8］LIU Caishan, ZHANG Ke, YANG Rei. The FEM analysis and approximate model for cylindrical joints with clearances ［J］. Mechanism ＆ Machine Theory, 2007, 42(2): 183？？197. |
| [7] | ［9］LANKARANI H M, NIKRAVESH P E. A contact force model with hysteresis damping for impact analysis of multibody systems ［J］. Journal of Mechanical Design, 1990, 112(3): 369？？376. |
| [8] | ［11］林碧华. 含间隙铰接副关节轴承磨损寿命预测方法与实验研究 ［D］. 西安: 西安交通大学, 2013. |
| [9] | ［4］何清华, 张大庆, 郝鹏, 等. 液压挖掘机工作装置模型及控制的试验研究 ［J］. 中南大学学报: 自然科学版, 2006, 37(3): 542？？546. |
| [10] | WANG Guoqing, LIU Hongzhao, HE Chang’an. Dynamic wear research of clearance joint in crank？？rod mechanism ［J］. Journal of Mechanical Strength, 2006, 28(6): 849？？852. |
| [11] | ［12］宿月文, 陈渭, 郭彩霞. 应用Winkler弹性基础模型的间隙铰接副磨损预测 ［J］. 摩擦学学报, 2012, 32(4): 320？？324. |
| [12] | SU Yuewen, CHEN Wei, GUO Caixia. Wear prediction of clearance revolute joints using Winkler surface model ［J］. Tribology, 2012, 32(4): 320？？324. |
| [13] | ［13］SENEVIRATNE L D, EARLES S W E, FENNER D N. Analysis of a four？？bar mechanism with a radially compliant clearance joint ［J］. Proceedings of the Institution of Mechanical Engineers: Part CJournal of Mechanical Engineering Science, 1996, 210(3): 215？？223. |
| [14] | ［14］张建玲, 李哲, 白师贤. 求解含间隙机构运行微分方程的摄动法 ［J］. 北京工业大学学报, 1997, 23(2): 1？？7. |
| [15] | ZHANG Jianling, LI Zhe, BAI Shixian. A perturbation method of solving the differential equations of the linkages with clearances ［J］. Journal of Beijing Polytechnic University, 1997, 23(2): 1？？7. |
| [16] | ［15］李培. 基于动力学与摩擦学耦合的含间隙铰接副多体系统研究 ［D］. 西安: 西安交通大学, 2015. |
| [17] | ［16］ARCHARD J F. Wear theory and mechanism ［M］. New York, USA: ASME, 1980. |
| [18] | ［3］马兴瑞, 王本利. 航天器动力学: 若干问题进展及应用 ［M］. 北京: 科学出版社, 2001. |
| [19] | HE Qinghua, ZHANG Daqing HAO Peng, et al. Model and experimental research on control of hydraulic excavator’s manipulator ［J］. Journal of Central South University: Science and Technology, 2006, 37(3): 542？？546. |
| [20] | ［5］KOGUT L, ETSION I. A finite element based elastic？？plastic model for the contact of rough surfaces ［J］. Tribology Transactions, 2003, 46(3): 383？？390. |
| [21] | ［6］P？[DRA P, ANDERSSON S. Finite element analysis wear simulation of a conical spinning contact considering surface topography ［J］. Wear, 1999, 224(1): 13？？21. |
| [22] | ［7］JOHNSON K L. Contact mechanics ［M］. Cambridge, UK: Cambridge University Press, 1985. |
