_滚动直线导轨副的振动模型研究

OLE 周传宏 孙健利 杨叔子( v q 430074)K1:以滚动直线导轨副的静刚度研究为基础,运用力学知识建立了导轨副的振动模型,推导出动态微分方程组。同时,进行了有关的数值计算。最后,还做了有关的实验,以便与理论分析相比较,达到对其振动研究的目的。结论也有助于进一步的振动分析。1oM:滚动直线导轨副,刚度,模型,固有频率。1 引言70 M , a 、 、 ?# 7? 1 p,OLE 0)(3/2jzi 0) (5)T:CbM“ , VV,9 V 9 1。! o vWK jzi5:sinjzi =VjiY/ ArAbcosjzi = VjiZ/ ArAbno (6) v, ZF:Ii=1Bz=1Jj=1Pjzisinjzi+FY =0Ii=1Bz=1Jj=1PjzisinjziXz +MZ =0Ii=1Bz=1Jj=1PjziWjzi+MX =0Ii=1Bz=1Jj=1Pjzicosjzi+FZ =0Ii=1Bz=1Jj=1PjzicosjziXz +MY =0(7)T: DWjzi =Zjirsinjzi-Yjircosjzi。 s ,dLZF V dE E dE。E9 VD2。2.2 E OLE,evE m6。(a) jm (b) jmm6 vE ZF, p ,Y 、ZZ_KY 、KZ, Y 、Z、XKY 、KZ 、KX。r V/ ZF:22 零部件设计 5 !91999 M22FY =KY1 =8K 11MZ =KZ2 =2B2K 12MX =KX3 =2A2K 13+2E2K23FZ =KZ4 =8K 24MY =KY5 =2B2K25(8) L=9 T VKY KZ,KY KZ。 LOLE。 7:K =K 1 =K 2 =(KY +KZ)/16;5:B = (KY +KZ)/(4K); 7:A =E;5:A = KX/(4K)。! v M, X、Y 、Z8IX 、IY、IZ。|E D jTE D, ! M、E D“ CY、CZ、CX 、CZ、CY 。B V L。“d s FY(t)、MZ(t)、MX(t)、FZ(t)、MY(t),5sZF:M1+8C11+8K1 =FY(t)IZ2+2B2C1Z2+2B2K2=MZ(t)IX3+2A(C1+C2)X3+4A2K3 =MX(t)M4+8C24+8K4 =FZ(t)IY5+2B2C2Y5+2B2K5 =MY(t) v(9)T: E DC1 =CY/8;C2 =CZ/8;E D“ Z =CZ/(2B2C1);Y =CY/(2B2C2);X =CX/2B2(C1+C2)。NZF H fM:1(j)=FY(j)/(8K -M2+j8C1)2(j)=MZ(j)/(2B2K-IZ2+j2B2C1Z)3(j)=MX(j)/4A2K -IX2+j2 A(C1+C2)X4(j)=FZ(j)/(8K -M2+j8C2)5(j)=MY(j)/(2B2K -IY2+j2B2C2Y)(10)% q:1 = 8K/M2 = 2B2K/IZ3 = 4A2K/IX4 = 8K/M5 = 2B2K/IY(11) L= 3, 11 v BYZ_ZZ_。 ! L(LX ,LY ,LZ), + M1“, YZ_MYLZZ_MZL:YL =1+2LX +3LZZL =4+5LX -3LY (12)NZF H fM:YL(j)=1(j)+2(j)LX +3(j)LZZL(j)=4(j)+5(j)LX -3(j)LY (13) T f IM, V p“d HY。3 数值计算及实验!HTSD30E, v Q(XQ,YQ,ZQ) e F =Psin(t +)Z3,59v,/。yN9vF Vh。 2: !FZ3,XQ =34 mm,YQ =-22 mm,ZQ =-30 mm,9 / )Y wL:(1)LX =34 mm;LY =-22 mm;LZ =-30 mm;(2)LX =0 mm;LY =-22 mm;LZ =-30 mm;(3)LX =LY =LZ =0 mm。 8 I “ 3 。m7b1-(1),2-(2),3-(3)。m7b Vn, LUS,l,iO ? 3 9 ,yNF _ L J。m8a L em。 L1 Z_% q,L 9 T1 。 L NSK LY30AL vE, C 4.539 kg。m8b LF wL。m8c 9 F wL, 1 M ,i O L% q597.66 Hz, 9 595.7 Hz。23 !91999 M22 5 零部件设计 m7 9 wL(a) L emm8 L #F wL4 讨论(1)OLE$,y E ,w sZF,B ZL。(2)E DZ 。 ID1 r .LOE s V.B . 8Ks. !9,1998,122 a,Y. B . # s. S= p “( B “ ),1989, 327 3333 S +. . CAD.1NV, 1993, 14(7):20 244 I. s k !9 !9.: bv,19865 q. k/ .:,198224 零部件设计 5 !91999 M229924 Asurveyontheresearchmethods forinte-gratizedCAPPLi Huiyun XuYanshen(Tianjin University)Abstract:This paper clearly defined the researchingrange of integratized CAPP, and briegly summarized variousmethods of integratized CAPP system.A comparatively de-tailed discussion has especially been carried out on the methodof integration for CAD and CAPP, CAPP and PPC.Key words:Integrated CAPP, CAD/CAPP, CAPP/PPC, distributed CAPP.Fig 3 Tab 0 Ref 21 “Jixie Sheji”802499210 AclusteralgorithmforlayoutproblemsWangJinmin(Tianjin University)Abstract:The cluster layout algorithm is one of themethods for solving the layout problems.This paper carriedout and put forward a cluster algorithm for the keypointscluster funtions and cobination of modulesofcluster layout algorithms.Thus provided a basis of quantita-tive appraisal on the determination of module combinationsand positions of layout objects inside the module.Keywords:Layout problems, Cluster, Correlation de-gree.Fig 2 Tab 0 Ref 5 “Jixie Sheji”806699213 Design supporting system of mechanismkinematicplanfacinglivingexamplesWangZhixing(Harpin Institute of Technology)Abstract:This paper indroced a design supporting sys-tem of mechanism kinematic plan based on the reasoning ofexamples.Besides the knowledge described by living exam-ples can be used this system can use the designing knowledgeexpressed by rules, procedures and grames as well.In addi-tion this system utilized the theory of fuzzy design and tech-nique of fictitious reality at the same time.And thus the fuzzyinformation in the procedure of design is fairly handled andthe working status of the obtained mechanism can be knownduring the designing stage.Keywords:Case- based reasoning, Mechanism kine-matic synthesis, Fuzzy design, Fictitious reality, Design sup-porting system.Fig 6 Tab 1 Ref 6 “Jixie Sheji”758599216 ParametricdesignofautomobileshockabsorbersbasedoncomplexnonlinearmathematicalmodelsTanRunhua(Hebei University of Technology)Abstract:Taking the shock absorber of Xiali car as theobject of study and using the special purposed emulation soft-ware SPSA-1 of shock absorber, this paper determined theinfluence of parametric variation of main structures upon themaximum and minimum damping forces and the shape ofcurves of velocity charcateristics.A method of three stagedparametric design for shock absorbers is advanced based onthe software SPSA-1.Keywords:Shock absorber, Simulation, parametric de-sign.Fig 10 Tab 1 Ref 7 “Jixie Sheji”803299219 Numerical analysis onstaticanddynamiccharacteristics of a multi-axis wrist forcesensorbased onorthogonaltestdesignLiuZhengshi(Hebei University of Technology)Abstract:Based on the document 1 and using orthog-onal test design, this paper carried out a mumerical analysison static and dynamic characteristics of a multi-axis wristforce sensor, and the influence of main structural parametersupon static and dynamic characteristicsis being analyzed com-prehensively.The results possessing important value of refer-ence on the enhancement of performance of this kind of sensorare being obtained.Keywords:Multi-axis wrist force sensor, Orthogonaltest analysis, Numerical analysis.Fig 1 Tab 3 Ref 5 “Jixie Sheji”812999221 Astudy onthe vibrationmodel of rollinglinearguidingpairsZhouChuanhong(Hua Zhong University of Science &Technology)Abstract:Utilizing the knowledge of mechanics this pa-per established the vibration model of guiding pairs, derivedthe dynamic differential equation sets and carried out the re-lated calculation at the same time.Finally, the related test ismade as well in order to make a comparison with the theoreti-cal analysis and achieved the good of research on its vibration.The conclusion is conducive to further vibrational analysis aswell.Key words:Rolling linear guiding pair, Stiffness, Mod-el, Natural frequency.Fig 8 Tab 1 Ref 3 “Jixie Sheji”757499225 Thestudy onjointmotionrepeatability ofspatial7RredundantrobotsZhaoJing BaiShixian(Beijing University of Technolo-gy)Abstract:In this article, the repeatability problem ofjoint motions for spatial 7R redundant robots is discussed.The reseting initial value method based-on psuedoinversecontrol is first proposed, and then the simulation researchesfor a spatial 7R redundant robot are made.Keywords:Redundant robots, Joint motions, Repeata-bility.Fig 5 Tab 1 Ref 6 “Jixie Sheji”812099228 Analysis and study on the theory andmethodofthesupportingvariantdesigningCADZhaoJiyun(Shanghai Jiaotong University)Abstract:This paper analyzed the requirements of vari-ant design on the CAD system, explored the theory andmethod of currently most in use supporting variant designingCAD and the existing defects.A kind of framework for intel-ligent variant designing system based on assembly model isadvanced.Key words:Variant design, Assembly model, Productmodeling.Fig 2 Tab 0 Ref 15 “Jixie Sheji”757899232 Designanddevelopment onspecialequip-mentfortwo-wayextrusion-upsettingcombinedformingWuZhenyong(School of Mechanical Engineering,TaijinUniversity)Abstract:Based on the study of combined technique ofextrusion-upsetting, this paper carried out a research on thetwo-way extrusion-upsetting combined technlolgy.Themain technological paraneters and range of extrusion-upse