Transactions of Materials and Heat Treatment

Title：Dynamic analysis of high-speed precision press with clearance

Authors： CHEN Shu-xin JIA Fang JIANG Shu WANG Lei

Unit： Southeast University

KeyWords： high-speed precision press joint clearance dynamic simulation ADAMS

ClassificationCode：TG315.5

year,vol(issue):pagenumber：2011,36(2):53-58

Abstract：

Joint clearance is one of the most important factors that affect the dynamic accuracy of high-speed precision press. In order to study the effects of clearance on dynamic characteristics, the virtual prototype model of high-speed precision press with clearance under the condition of cyclical impact was established. In this model, the contact forces and the friction forces could be calculated by the nonlinear equivalent spring-damp model and the modified Coulomb's friction law respectively. Furthermore, the clearance joints could be described by the contact constraints between the massless arcs. By means of dynamic simulations, the effects of clearance and impact on kinematic characteristics of high-speed precision press were studied, the results of which can be adopted as references for designing and manufacturing the key components.

Funds：

江苏省成果转化资助项目（BA2008030）

Reference：

［1］黄才元, 宋志强. 中国锻压机床的现在和未来[J]. 锻压装备和制造技术, 2006,(2): 12-17.
［2］赵升吨, 张学来, 高长宇,等. 高速压力机的现状及其发展趋势[J]. 锻压装备与制造技术, 2005,(1):17-25.
［3］阎绍泽. 航天器中含间隙机构非线性动力学问题及其研究进展[J].动力学与控制学报,2004,2(2):48-52.
［4］Flores P. A parametric study on the dynamic response of planar multibody systems with multiple clearance joints[J]. Nonlinear Dynamics,2010,61:633-653.
［5］Imed Khemili, Lotfi Romdhane. Dynamic analysis of a flexible slider-crank mechanism with clearance[J]. European Journal of Mechanics A/Solids, 2008,27: 882-898.
［6］Selcuk Erkaya,Ibrahim Uzmay. Experimental investigation of joint clearance effects on the dynamics of a slider-crank mechanism[J]. Multibody Systerm Dynamic, 2010, 24:81-102.
［7］杨倩, 师忠秀, 程强. 基于SIMULINK的含间隙机构运动学仿真研究[J]. 青岛大学报,2005,20(3):16-26.
［8］王华杰. 基于虚拟样机技术的含间隙铰曲柄滑块机构动力学仿真[J]. 襄樊学院报,2007,28(11):58-61.
［9］Lee T W, Wang A C. On the dynamics of intermittent-motion mechanisms, part 1: Dynamic model and response[J]. Journal of Mechanisms, Transmissions, and Automation in Design,1983,105(3): 534-540.
［10］时兵, 金烨. 面向虚拟样机的机构间隙旋转铰建模与动力学仿真[J].机械工程学报,2009,45(4):299-303.
［11］张晓阳, 王兴松, 贾方. 闭式高速曲柄压力机动平衡优化设计[J]. 锻压技术,2006,31(6): 96-99.
［12］蒋舒. 高速精密压力机精度分析和试验研究[D]. 南京: 东南大学, 2010.

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