机床固定结合面动态特性参数实验研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
论文基于国家重大科技专项“高档数控机床与基础制造装备”展开研究工作,以建立通用的结合面特性数据库,提高机床数字化动态设计精度为目的,对固定结合面的动态特性参数的识别进行了较为系统的研究。
     通过消除基础及其他部分影响,建立了固定结合面的测量模型,并通过选用模态仪器,在合理的激励方式下,建立了可实现多通道实时测量的测量平台,提高了结合面参数识别的精度。提出了实验装置的设计准则,在满足刚度、平稳性及通用性的前提下,设计了满足测量模型要求的实验装置,并对重要部件进行了有限元分析。
     通过分析固定结合面动态特性的主要影响因素,提取了固定结合面的特征参数并设计了实验方案。通过对数据采集前的模态分析软件设置过程、系统的振型判定以及matlab数据处理三个方面,详细讨论了结合面动态刚度和动态阻尼的参数识别过程,并在单位面积特征参数转换时对螺栓的影响进行了剔除。
     通过对所获得的大量试验数据整理分析,研究了结合面法向压强、表面粗糙度、材料及介质等因素对结合面动态刚度和动态阻尼的影响。应用实验获得的基础动态特性数据对滚动导轨测试平台中的固定结合面进行了有限元仿真分析,并通过力锤激励进行了模态试验,通过对比有限元分析结果和实验结果,证实了所获得数据的有效性。
The study of this thesis is based on the research of "High grade CNC machine tool and basic manufacturing equipment".The research aims to build the joint characteristic parameter library and implove the machine tool's dynamic design of precision.A systematic research on dynamic characteristic parameter of fixed joint's identification is done in this paper.
     The measurement model of fixed joint is developed by eliminating the influence of base displacement.By selecting proper modal instruments and excitation signal, the real-time measurement platform of multi-channel is built to implove precision of joint parameter identification. The design requirements are considered in the design scheme, such as vibration stability, stiffness, generality. The validation of important component is done by finite element analysis.
     The experimental scheme is designed through analysis of fixed joint's main influencing factors. In order to specify fixed joint stiffness and damping coefficient identification process, the modal software settings before measurement and the system's mode shape inspection, as well as the data processing of MATLAB is discussed.In addion, the effect of screws is removed.in the unit area characteristic parameter conversion.
     Different factors such as normal pressure, surface roughness, materials and media of joint which have an influence on fixed joint dynamic stiffness and damping is dicussed by by collating the experimental data.The fixed joints in the test requirement of rolling guide is analyzied by using experimental data in ANSYS. In addion, the finite element analysis result and experimental result is compared, which confirms the validation of experimental data obtained.
引文
[1]M. Burdekin, N. Back. A. Cowley. Analysis of the Local Deformation in Machine Joints[J]. Mech. Eng. Sci.,1979,34(3):15-17
    [2]张学良,徐格宁,温淑花.机械结合面静动态特性研究回顾及展望[J].太原重型机械学院学报,2002(9):276~279
    [3]C.F.Beads.Damping in struetural joints[J]. The Shock and Vibration Digest.1982(6): 563~570
    [4]F.希柯贝格,J.特鲁斯泰著.机床结构[M].北京:机械工业出版社,1982
    [5]张学良,黄玉美.粗糙表面法向接触刚度的分形模型[J].应用力学学报,2000,17(2):31-35
    [6]温淑花,张学良,文晓光,等.结合面切向接触刚度分形模型建立与仿真[J].农业机械学报,2009,12:223-227
    [7]Greenwood J. A. and Williamson J. B. P. Contact of Nominally Flat Surfaces[J]. Proc. Roy. Soc.,London A295,1966:300~319
    [8]Whitehouse D. J. and Archard J. F. The Properties of Random Surfaces of Significance in Their Contact [J]. Proc. Roy. Soc.,London, A316,1970:97~121
    [9]Onion R. A. and Archard J. F. The Contact of Surface Having a Random Structure[J]. J.Phys.,1973(6):286~304
    [10]张波,等.塑性接触对表面形貌的影响[J].浙江大学学报,1992(2):218~213
    [11]饶柱石,等.粗糙平面接触刚度的研究[J].机械强度,1994(2):71-75
    [12]山田昭夫,等.具有结合面的梁的动态特性的确定[J].精密工学会志,1986(12):2051~2057
    [13]张学良.机械结合面动态特性基础特性理论、实验与建模研究[D].西安理工大学博士学位论文,1998
    [14]Z. M. Levina. Calculation of Contact Deformations in Slideways[J]. Machine and Tooling,1967:97~104
    [15]张学良.机械结合面动态特性及应用[M].北京:中国科学技术出版社,2002
    [16]M. P. Dolbey and R. H. Thornley. Determing the Normal Stiffiness of Joint Faces[J]. ASME,1967
    [17]R. E. Schofield and R. H. Thornley. Calculating the Elastic and Plastic Components of Deflecion of Plane Joints Formed Machined Surfaces[J]. Proc 12th Confer.M. T. D. R.,1972
    [18]R. Connlly and R. H. Thornley. Determing the Normal Stiffiness of Joint Faces[J]. ASME,1967
    [19]Kirsanova V. N..The shear Compliance of Flat Joints[J]. Machine and Tooling, 1967(7)
    [20]伊藤,周三.机床螺钉连接部位的静态特性[J].机床译林,34~37
    [21]黄玉美,等.机床结构设计效果预断种结合条件的处理方法[J].机床,1990(6):8~12
    [22]黄玉美,等.结合面法向动态特性参数研究[J].机械工程学报,1993(3),74~78
    [23]洪福昌.数控机床绪合面特性参数约识别研究及其应用软件开发[D].北京工业大学硕士学位论文,2000
    [24]伊东谊.机床结合部问题研究的最新展望[J].日本机械学会论文集,1988(4):807~815
    [25]李涛.MB4250高精度立式珩磨机床的动态特性分析[D].上海交通大学硕士学位论文,2008
    [26]廖庆斌,李舜酩,朱丽娟.基于随机激励的某机匣模态实验与分析[J].航空动力学报,2005,6:932~936
    [27]张杰,童忠钫.机床固定结合面动力学建模问题[J].振动与冲击,2009,(2):174~177
    [28]陈新,刘泽民,罗鸿.基于实验模态参数的结构多层结合面参数识别[J].实验力学,1995,10(2):172~180
    [29]魏海燕,王先逵,郁鼎文,张玉峰.卧式加工中心试验模态分析[J].机床与液压,2003,(05):73~75
    [30]郑金兴,张铭钧,孟庆鑫.试验模态技术在机床结构动态特性研究中的应用[J].测控技术,2007,26(12):28~31
    [31]王松涛,王立华,张鹏.机械结合面阻尼的产生机理研究现状与发展[J].机械,2007,34(12):1-4
    [32]P. F. Rogers, G. Boothroyd. Dampin at Metallic Interfaces Subjected to Oscillating Tangential Loads[J]. J. Eng. for Industry, Trans. ASME.,1975:1087~1093
    [33]Y. Ren, C. F. Beards, Identificationg of Joint Properties of a Structure Using FRF Data[J]. Journal of Sound and Vibration,1995,(4):567~587
    [34]姚鹏.机床零件结合面动态特性参数的识别与研究[D].东北大学硕士学位论文,2005
    [35]王海滨.机床结合面实验设计及有限元建模的研究[D].北京工业大学硕士学位论文,2001
    [36]沈晓庆,翁泽宇等.数控机床滚动导轨结合面参数的特性分析[J].机械制造,2009,(2):30~32
    [37]Lei Guo, Hui Zhang, Peiqing Ye, Tong Zhao. On Obtaining Machine Tool Joints Stiffness by Integrated Modal[J]. Mechanic Automation and Control Engineering, 2010:2661~2664
    [38]伊东谊.考虑结合部的机床设计现状和实例[J].机床译林,1978:37~41.
    [39]吉村允孝.螺栓结合部的刚度与阻尼能的测定机计算机模拟识别[J].精密机械,1976,(6):562~567
    [40]赵宏林,等.机床结合部特性的理论解析及应用[J].机械工程学报,2008,44(12):208~214
    [41]黄玉美.机床导轨结合部接触刚度及其影响因素的研究[J].陕西机械学院学报,1985:13~22
    [42]张学良,黄玉美,温淑华.机床结合面静态基础特性参数的建模及其应用[J].制造技术与机床,1997,(11):8-10
    [43]李欣业,张明路.机械振动[M].北京:清华大学出版社,2009.8
    [44]张广鹏,黄玉美.机床导轨结合部的动态特性解析方法及其应用[J].机械工程学报,2002,59(10):32-35
    [45]李修平.基于ANSYS的高速加工中心有限元分析[D].华中科技大学硕士学位论文,2005
    [46]M.Yoshimura. Computer Aided Design Improvement of Machine Tool Structure Incorporating Joint Dynamics Data[J]. Annals of the CIRP,1979,28:241~246
    [47]ANSYS, Inc. ANSYS技术报告[J].北京:美国ANSYS公司北京办事处,1998
    [48]沃德,等.模态分析理论与试验[M].北京:北京理工大学出版社,2001
    [49]殷增振.主轴系统试验台理论建模及结合部动态特性研究[D].昆明理工大学硕士学位论文,2005
    [50]张广鹏,王海丽,胡兆燕,等.基于结合面基础特性参数的机床导轨结合部动态特性解析方法[J].江苏机械制造与自动化,2001,4:72-75
    [51]张威.数控机床结合面参数的实验识别及其主结构的动态优化[D].北京大学硕士学位论文,2006
    [52]许丹,刘强.基于结合面建模的数控机床动力学联合仿真研究[J].机械设计与制造,2008,3(3):9-11
    [53]罗建平.XKS150数控铣床典型结合部动力学特性研究[D].昆明理工大学:2007.5
    [54]廖伯瑜、周新民、尹志宏.现代机械动力学及其工程应用[M].北京:机械工业出版社,2003.8

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700