Zero-Max型无级变速器的承载能力研究及仿真
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摘要
变速器通常分为有级变速器和无级变速器两大类,脉动式无级变速器以其传动可靠、寿命长、变速范围大、静止和运动时均可调速、调速性能稳定等优点成为现代机械传动技术的主要发展方向之一,其中又以Zero-Max型无级变速器的性能较为优良。但由于一些问题的存在制约了其承载能力的提高,限制了其应用范围的扩大。本文用解析法分析了Zero-Max型无级变速器的传动误差及间隙副的影响,建立了其实体模型,进行了运动学与动力学仿真,对其疲劳、磨损及超越离合器进行了研究,综合多种影响因素对其承载能力进行了分析研究。主要开展的研究工作如下:
     1.在分析Zero-Max型无级变速器传动特性的基础上,对其运动构件的传动误差进行分析,建立了输出角误差方程,为制造公差的确定提供了理论依据,并为后续效率计算奠定了理论基础。
     2.由于装配、制造误差以及磨损,运动副不可避免的存在间隙,高速运转时间隙的影响不容忽略。通过分析间隙对机构动态特性的影响,对间隙副副元素间的相对运动和多个间隙副之间的相互影响进行了研究,建立了含间隙曲柄摇杆机构的运动方程。
     3.对Zero-Max型无级变速器进行运动学与动力学仿真,得到其运动时的速度、加速度、功率消耗、转动副受力、摩擦力曲线等,并通过分析和比较多种参数方案,获得最优工作性能,为实际加工制造提供了依据。
     4.对Zero-Max型无级变速器系统进行了振动分析,得到了此系统的固有频率和振型,为后续动态特性的响应分析打下了基础。通过模态分析,发现无级变速器各构件的危险部位,无级变速器的失效多发生在这些部位附近。
     5.对影响机构疲劳强度的因素进行了分析,提出了提高其抗疲劳性能的措施。对该变速器的重要组成部分——超越离合器进行了分析,得到限制超越离合器承载能力提高的影响因素,分析了其失效原因,并提出了提高其寿命的措施。
Impulse continuously variable transmission (CVT) has become one of the main directions of modern transmission technology. It can transmit reliably and regulate while resting and moving. Its life is long, shift range is large and shift capability is stable. Zero-Max CVT has better capability, but it still has some problem restricting its increase of bearing capacity. The researches of this paper are as follows:
     1. Transmission error of movement component is analyzed based on the analysis of transmission characteristic of Zero-Max CVT. Error expressions of output angle are deduced. It offers a theory basis of manufacture tolerance and builds the foundation for future efficiency calculation.
     2. The pair inevitably has clearance because of assembly manufacture error and wearing. The impact of clearance can't be ignored when analyzing high speed machine. Relative movement between pair elements of clearance pair and mutual impact between several clearance pairs are researched. Movement equation of crank and rocker mechanism with clearance is deduced.
     3. Kinematics and dynamics simulation of Zero-Max CVT is carried out by using ADAMS. Curve of velocity, acceleration, power consumption, element force of rotation pair, friction etc. can be carried out. Excellent working performance can be obtained according to analyzing and comparing several parameter projects. It builds a foundation of practice manufacture.
     4. Vibration analysis of Zero-Max CVT system is carried out by using ANASYS. Natural frequency and vibration model of the system are obtained. It builds a foundation of future response analysis of dynamical characteristic. The most dangerous parts of CVT components can be found. Invalidation and fracture of CVT often occur near these parts.
     5. The impact factors of machine fatigue strength are analyzed and the methods of increase fatigue resistance character are advanced. Overrunning clutch witch is the important element of Zero-Max CVT is analyzed. Impact factors of restricting increase of bearing capacity of overrunning clutch are analyzed. Reasons of invalidation are analyzed and measures of increase life are advanced.
引文
[1] 阢忠唐主编.机械无级变速器设计与选用指南[M].北京:化学工业出版社,1999:215-217.
    [2] 周有强.机械无级变速器[M].北京:机械工业出版社,2001:292-305.
    [3] 于杰栋,雎相林.无级变速技术的发展与展望[J].机电工程技术,2004,33(2):10-12.
    [4] 王树春,车仁炜,徐伟国.一种新型的机械无级变速器[J].机械设计,2004,21(4):56-58.
    [5] 周有强,崔学良,董志峰.机械无级变速器发展概述[J].机械传动,2005,29(1):65-68.
    [6] 周有强.中国大陆机械减速变速传动发展概况[J].台湾机械月(传动机构专辑),1997(7):34-40.
    [7] 程乃士,刘温,李来平.金属带式无级变速器[J].东北大学学报(自然科学版),2000,21(5):505-508.
    [8] 李平.脉动无级变速器的运动特性分析[J].广西机械.1998,3:3-6.
    [9] 柳晋伟,任家骏,吴凤林.无级变速器的简介与发展[J].机械管理开发,2005,84(3):68-72.
    [10] Wilson, Sadler, Michels. Kinematics and Dynamics of Machinery[M]. Harper & row, Publishers, New York. 1983: 345-361.
    [11] 朱宁,刘开昌.脉动式无级变速器的研究及发展现状[J].包装与食品机械,2003,21(5):11-14.
    [12] 杜力,黄茂林,李太福.脉动式无级变速器真实运动规律的研究[J].中国机械工程,2004,15(12):1080-1084.
    [13] 孙桓,陈作模.机械原理[M].北京:高等教育出版社,2001:78-87.
    [14] 李洪忠.平面连杆机构的误差分析[J].机械制造与自动化,2005,34(4):24-25.
    [15] 陈春.尺寸误差对平面四杆机构运动精度的影响[J].机械研究与应用,2005,18(1):47-48.
    [16] 靳春梅,邱阳等.含间隙机构动态特性分析[J].机械科学与技术,2001,20(1):55-57
    [17] Miedema B, et al. Mechanical Joints with Clearance: A Three-Mode Model[J]. ASME Journal of Engineering for Industry, 1976, 98: 176-180.
    [18] Bauchau 0 A, Rodriguez J. Modeling of joints with clearance in flexible multibody systems[J]. International Journal of Solids and Structures, 2002, 36: 41-63.
    [19] 宋黎,杨坚.含间隙复杂平面连杆机构的运动误差分析[J].湘潭学报(自然科学版),1998,12:84-88.
    [20] 常宗瑜,张策,王玉新.含间隙机械系统动力学响应的特征[J].机械科学与技术,2000,19(3):353-358.
    [21] Soong K, et al. A Theoretical and Experimental Investigation of the Dynamic Response of a Slider-crank Mechanism with Radial Clearance in the Gudgeon-pin Joint[J]. ASME Journal of Mechanical Design, 1990, 112(2): 183-189.
    [22] Dubowsky S, et al. Dynamic Analysis of Mechanical System with Clearances, Part Ⅰ: Formation of Dynamic Model, Part Ⅱ: Dynamic Response[J]. ASME Journal of Engineering for Industry, 1971, 93: 305-316.
    [23] Funabashi H, et al. A Dynamic Analysis of the Plane Crank-and-rocker Mechanisms with Clearances[J]. Bulletin of the JSME, 1980, 23(177): 446-452.
    [24] Ea rles S W E, et al. Motion Analysis of a Rigid-link Mechanism with a Bearing Using Lagrangiam Mechanics and Digital Computation[J]. Conference on Mechanisms, IME, Loondn, 1972: 128-132.
    [25] 宋黎,杨坚,曹惟庆.用蒙特卡洛法进行平面连杆机构的运动误差综合[J].机械科学与技术,1997,16(3):479-482.
    [26] 董美云,谭晓丽.尺寸误差对平行四杆机构动态性能的影响分析[J].大连铁道学院学报,2004,25(1):29-31.
    [27] 华大年,华志宏,吕静平编著.连杆机构设计[M].上海:上海科学技术出版社,1995.
    [28] Furuhashi T, et al. Research on Dynamics of Four-bar Linkage with Clearances at Turning Pairs(including four reports)[J]. Bulletin of the JSME, 1978, 21: 48-56.
    [29] 刘萍.误差传递公式的特殊形式及应用[J].山东工程学院学报,2001,15(1):76-78.
    [30] 刘文.具有运动副间隙机构的动力学研究[J].机械工程学报.1988,24(2):48.
    [31] 邱阳等.具有库伦摩擦的弹性机构动力相应分析[J].机械科学与技术,1992,43(3):47-51.
    [32] 席平原,魏伟.基于MATLAB机械优化设计问题的分析[J].煤矿机械,2003,9:9-11.
    [33] 王国庆,刘宏昭.含间隙平面连杆机构动态特性研究[J].机械传动.2001,25(3):18-20.
    [34] 靳春梅,邱阳,樊灵等.含间隙弹性连杆机构KED分析[J].机械设计.2000,10:68-71.
    [35] 王国庆,刘宏昭等.平面间隙运动副副元素相对运动[J].长安大学学报(自然科学版),2002,22(1):70-73.
    [36] 李增刚编著.ADAMS入门详解与实例[M].北京:国防工业出版社,2006:85-96.
    [37] Mechanical Dynamics, Inc. ADAMS Help Documents[S]. MDI, 1999: 34-39.
    [38] Leung A Y T. Subspace Iteration For Complex Symmetric Eigenproblems[J]. Sound and Vibration, 1995, 184(4): 627-637.
    [39] 陈立平,张云清等编著.机械系统动力学分析及ADAMS应用教程[M].北京:清华大学出版社,2005:286-294.
    [40] Thomas D L. Dynamics of rotationally periodic structures[J]. Meth. Engrg. 1979(14): 81-102.
    [41] 张策.机械动力学[M].高等教育出版社,2000:155-165.
    [42] 李军,邢俊文,覃文洁.ADAMS实例教程[M].北京:北京理工大学出版社,2002.7:218-221.
    [43] 曹惟庆等著.连杆机构的分析与综合[M].科学出版社,2002:134-138.
    [44] 张启先.空间结构的分析与综合[M].第一版.北京:机械工业出版社,1984:145-151.
    [45] 鲍卫宁.基于ADAMS软件的轿车悬架动态模拟与仿真[硕士学位论文].武汉理工大学,2002,27-69.
    [46] 唐锡宽.机械动力学[M].高等教育出版社,1984,127-134.
    [47] ADAMS Online Documentation[M]. Mechanical Dynamics, 2002: 53-68.
    [48] 叶先磊,史亚杰.ANSYS工程分析软件应用实例[M].北京:清华大学出版社,2003:158-169.
    [49] 李德葆,陆秋海.实验模态分析及其应用[M].北京:科学技术出版社,2001:17-18.
    [50] 曾文平.解四阶杆振动方程新的两类隐式差分格式[J].华侨大学学报(自然科学版),2003,24(2):136-142.
    [51] 王玉新.弹性连杆机构的组合共振[J].天津大学学报,1996,29(5):704-708.
    [52] 李德葆,陆秋海.实验模态分析及其应用[M].北京:科学技术出版社,2001:245-250.
    [53] 龚曙光.ANSYS基础应用及范例解析[M].北京:机械工业出版社,2003:186-197.
    [54] 刘涛,杨凤鹏.精通ANSYS[M].北京:清华大学出版社,2002:53-59.
    [55] 邵蕴秋编著.ANSYS9.0有限元分析实例导航[M].北京:中国铁道出版社,2004:215-238.
    [56] Pandey A K, Biswas M, Samman M M. Damage detection from changes in curvature mode shapes[J]. Journal of Sound and Vibration, 1991, 145(2): 70-80.
    [57] 王非,林英.化工设备用钢[M].北京:化学工业出版社,2004:368-371.
    [58] S J Lee, B J Gilmore. The determination of the probabilistic properties of velocities and accelerations in kinematics chains with uncertainty[J]. Transactions of the ASME, 1991, 113(3): 84-90.
    [59] 濮良贵,纪名刚主编.机械设计[M].高等教育出版社,2004:22-31.
    [60] 李舜酩编著.机械疲劳与可靠性设计[M].科学出版社,2005:159-167.
    [61] Dolan, Benninger. Beckott[J]. Proc. ASTM, 1940, Vol. 40: 658.
    [62] Moses F. System reliability developments in structural engineering[J]. Structural Safety, 1982, 3: 3-13.
    [63] 郭力,李光耀等.薄板成形计算机仿真中摩擦模型的研究进展[J].中国机械工程.2003,14(21):1879-1882.
    [64] 赵少汴编著.抗疲劳设计[M].北京:机械工业出版社,1994:127-132.
    [65] OEHLERS D J. Residual strength of structural components subjected to cyclic loads[J]. Struct Eng, 1991, 118(10): 2645-2658.
    [66] Willams Molly W. The formation of Fe304 during unlubricated sliding of 4340 steel under both light and heavy contact pressures. Wear. 1988, 23: 193-205
    [67] 曲秀全,陆念力,车仁炜.超越离合器综述[J].机械传动,2005,29(1):69-72.
    [68] 徐璨.机械设计手册(第四卷)[M].北京:机械工业出版社,1998:541-549.
    [69] Town H C. Clutches for machine control[J]. Power International. 1988(11): 247-249.
    [70] 刘凯.GUSA型无级变速器及超越离合器的研究[硕士学位论文].西安:陕西机械学院, 1989:35-50.
    [71] 曲秀全,车仁炜,孙荆芒等.楔块式低副单向超越离合器[J].机械传动,2002,26(2):76-78.
    [72] Keith M Walker .Applied Mechanics for Engineering technology [M]. N.J. Prentice Hall.1991:251-235.
    [73] 黄家裕,钮心宪.超越离合器的力学分析[J].交通部上海船舶运输科学研究所学报.2000,23(2):75-83.
    [74] A H Burr. Mechanical Analysis & Design[M]. New York: Elsevier, 1981:36-39.
    [75] 黄炎.局部应力及其应用[M].北京:机械工业出版,1986:251-256.
    [76] 黄靖远,李平林,庄企华等.挠性环面接触式超越离合器的原理与应用[J].机械下程学报,1995(6):73-77.
    [77] 黄靖远,张浩,王序云等.链环式超越离合器的工作原理和物理本质[J].中国机械工程,1997,13(1):108~110.

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