计及运动副间隙的双曲柄六杆压力机机构动力学仿真向量键合图法

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摘要针对计及运动副间隙的双曲柄六杆压力机机构动力学仿真问题，提出了相应的向量键合图法。基于修正非线性连续接触碰撞力的混合模型，推导出间隙运动副的相对碰撞速度向量方程。在此基础上，建立了可以更精确描述间隙运动副的向量键合图模型，具有通用性强、模块化的特点，便于嵌入到系统的向量键合图模型中。由机构运动副的约束关系，将各构件的向量键合图模型相互键接，建立了计及驱动电机、运动副间隙的双曲柄六杆压力机机构向量键合图模型。应用相应的方法，使机构向量键合图模型的贮能元件皆具有积分因果关系，实现了计及驱动电机、运动副间隙的双曲柄六杆压力机机构计算机建模及动力学仿真。在此基础上，分析了运动副间隙对压力机机构运动学及动力学性能的影响，验证了所述方法的可靠性及有效性。最后，通过与无质量弹簧阻尼运动副间隙模型的计算对比，进一步表明本文方法可以提高系统动力学仿真的精度及实用性。

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	王中双
	尹久政

关键词 ：向量键合图, 运动副间隙, 非线性连续接触碰撞力, 相对碰撞速度向量, 双曲柄六杆压力机机构, 动力学建模与仿真

Abstract：For the dynamic simulation of double crank six-bar press mechanism with joint clearance, the corresponding vector bond graph procedure was proposed.Based on an improved hybrid nonlinear continuous contact and collision model, the vector equation for relative collision velocity of joint clearance was derived.Based this, a vector bond graph model describing joint clearance more accurately was made, which possesses modular and universal characteristics and is suitable for embedding into the system vector bond graph.From the constraint relations of mechanism kinematic pairs, the vector bond graph model of double crank six-bar press mechanism with joint clearance driven by an electric motor was made by bonding vector bond graphs of mechanism components.By the corresponding method, all the energy storage elements of the mechanism vector bond graph possessed integral causality, and the computer modeling and dynamic simulation of double crank six-bar press mechanism with joint clearance driven by the electric motor was realized.Based on this, the influence of joint clearance on kinematic and dynamic character of press mechanism was analyzed, and the reliability and validity of the procedure proposed were illustrated.Finally, by comparing with the calculated results of the joint clearance model of the mass-less spring damping, it is further clarified that the method presented in this paper can improve the accuracy and practicability of system dynamic simulation.

Key words： vector bond graph joint clearance nonlinear continuous contact and collision force relative collision velocity vector double crank six-bar press mechanism dynamic modeling and simulation

收稿日期: 2020-06-17 出版日期: 2021-02-28

引用本文:

王中双，尹久政. 计及运动副间隙的双曲柄六杆压力机机构动力学仿真向量键合图法[J]. 振动与冲击, 2021, 40(4): 148-154.
WANG Zhongshuang,YIN Jiuzheng. A vector bond graph method for dynamic simulation of double crank six-bar press mechanism with joint clearance. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(4): 148-154.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2021/V40/I4/148

[1] 洪嘉振著.计算多体系统动力学[M].北京：高等教育出版社，1999：1-319.
[2] 郑相周，唐国元编著.机械系统虚拟样机技术[M].北京：高等教育出版社，2010:1-264
[3] 赵升吨，何予鹏，王军.机械压力机低速锻冲急回机构运动特性的研究[J]. 锻压装备与制造技术，2004：（3）：24-31.
ZHAO Shengdun, HE Yupeng,Wang Jun. A study on the motion characteristics of the quick return and low speed forging of mechanical press[J]. China Metal Forming Equipment & Manufacturing Technology, 2004, (3): 24-31.
[4] Senevirate, L D, Earles, S W E, Fenner D N. Analysis of four-bar mechanism with a radically compliant clearance joint[A].Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 1996, 210: 215-222.
[5] 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: 369-376.
[6] Liu C S, Zhang K, Yang R. The FEM analysis and approximate model for cylindrical joints with clearances[J]. Mechanism and Machine Theory, 2007, 42: 183-197
[7] 郭嘉楠，何鹏，刘占生等.粗糙接触面旋转铰间隙碰撞动力学建模与仿真[J]. 振动与冲击，2019，38（11）：132-139.
    GUO Jianan， HE Peng， LIU Zhansheng， HUANG Hongyan, et al. Impact dynamic modeling and simulation for a revolute joint with rough contact surfaces and a clearance[J]. Journal of vibration and shock, 2019, 38(11): 132-139.
[8] 白争锋.考虑铰间间隙的机构动力学特性研究[D].哈尔滨：哈尔滨工业大学，2011：1-94.
[9] 王中双．键合图理论及其在系统动力学中的应用［M］．哈尔滨:哈尔滨工程大学出版社，2000：1-147.
[10] Behzadipour S, Khajepour A. Causality in vector bond graph and its application to modelling of   multi-body dynamic systems [J]. Simulation Modelling Practice and Theory, 2006, 14(3): 279-295.
[11] 王中双，韦静. 肘杆式压力机机构动力学建模与分析向量键合图法[J].振动与冲击，2019，38（11）140-145.
     WANG Zhongshuang, WEI Jing. Vector bond graph method for the dynamic modelling and analysis of a toggle press mechanism[J]. Journal of Vibration and Shock, 2019, 38(11):140-145.
[12] 王中双，徐贺. 基于广义速度的平面连杆机构动力学分析向量键合图法[J].机械传动，2018，42（7）：29-32
WANG Zhongshuang, XU Changshun, XU He. Vector bond graph method for the dynamic analysis of planar linkage based on generalized velocity[J]. Journal of Mechanical Transmission, 2018, 42(7): 29-32.
[13] 王中双，徐长顺，吕航.平面多体系统动力学计算机仿真向量键合图法[J]. 机械科学与技术，2018,37（3）：402-408.
      WANG Zhongshuang, XU Changshun, LV Hang. A vector bond graph method for computer simulation of planar multibody system dynamics[J]. Mechanical Science and Technology for Aerospace Engineering, 2018,37（3）：402-408.
[14] 王威，沈政，宋玉玲等.含间隙和干摩擦的连杆机构系统动力学研究[J].振动与冲击，2015，34（18）：211-214.
     WANG Wei, SHEN Zheng, SONG Yuling, et al. System dynamics linkage mechanism with clearance and dry friction[J]. Journal of vibration and shock, 2015, 34(18): 211-214.
[15] 王中双,韦晶,尹久政。含铰间隙RRR-RRP六连杆压力机机构动态仿真向量键合图法[J]。机械传动，2019，43(9)，22-27.
     Wang Zhongshuang Wei Jing Yin Jiuzheng. Vector Bond Graph Method for the Dynamic Simulation of RRR-RRP Six Bar Press Linkage with Joint Clearance[J]. Journal of Mechanical Transmission, 2019, 43(9): 29-32.