1、作者：Chunhui Yang Shimin Luo国籍：China出处：2010 Intemational Conference on System,Engineering Drdign and Manufacturing InformatizationCircular are flexible hinge stiffness character analysisAbstract-Flexible hinges are widely used in micro robotic. Its tigidity directly influences an organizations termina 。

2、l localization. Its actual structure geometry size cannot satisfy the theoretical analysis completely in a theoretical supposition condition. In this paper. We analayzed the rotation rigidity of a ellliptical flexible hinge in different parameters using finite element software ANSYS. The errors are。

【材料|材料 外文翻译 外文文献 英文文献 圆弧型柔性铰链刚度特性分析】3、discovered and compared with theoretical result. Though the graph of the flexible hinge parameters on the performance of a elliptical flexible hinge was carried out. The key manufacture parameters that affect the performance of an elliptical flexible hinge the most and rules of design are given, whi 。

4、ch can provide directions of design precision for the flexible hinge.Keywords-flexible hinge;
elllipse;
finite element analysisl;
rigidity.INTRODUCTIONFlexible hinge have some characteristics, such as small volume, without tubs, ceaseless, good rigidity and high sensitivity. With micocomputer electri 。

5、cal system series (MEMS) technical rapidly expanding, flexible hinge are widely applied in the displacement which requests small angular and high-precision rotation, such as gyroscopes,accelerometers, percision instruments and so on. It has broad application prospects in the micron level domain.The。

6、common flexible hinge is in two kinds:beam-shape flexible hinge and arc-shaped flexible hinge. The beam-shaped flexible hinge has a big slewing area, but the movement precision is bad. The arc-shaped flexible hinges movement percision is bad. The arc-shaped flexible hinge is relatively small. In ord 。

7、er to take into account the movement ptecision and scope, the following several rotation flexible hinges have been generated: parabolic flexure hinge, an elliptical flexure hinge and a hyperbola-shaped hinge, etc. The properties of flexible hinges are rigidity precision and stress characteristic etc 。

8、. the rigidity performance reflects the stress ability and also manifests movement to a vice-flexible degree. In 1965, Parosetal announced his design development of the circular flexible hinge for the first time, and gave the rigidity formula.Smithetal used the similar method to obtain an elliptic f 。

9、lexible hinge mechanics expression. Nicolae Lodonitu inferred the parabola and the hyperbolic flexible hinges rigidity formula. Wei Xu and Tim king analyzed the tectangular and elllipse flexible hinges rigidity and rotarion precision using the finite element method.In this paper the elliptical flexi 。

10、ble hinge stiffness to different geometrical parameters is analyzed with software ANSYs10.0. Compared with ressults of theoretical analysis and finite element analysis(FEA), the errors are analyzed. Theough the graph of the flexible hinge parameters and its performanve, an analysis of changes of par 。

11、ameters on the performance of the elliptical fexible hinge was carried out. The key manufacture parameters that affect the performances of an elliptical flexible hinge the most and rules of design are given, which can guve direcrions of design precision for the flexible hinge.RIGIDITY FORMULA OF THE 。

12、 ELLIPTICAL FLEXIBLE HINGE An elliptical flexible hing,as shown in Figure 1, is a particular type of flexure that consists of a neckde down section. Parameters t,h,b are flexible hinges smallest thickness,height and width ,resoectively, Parameter is the semimajor axis of ellipse, and is the semimajo 。

13、r axis of elllipse.As shown in Figure 1(a), the infinitesimal is intercepted in the abscissa axis. To begin, the infinitesimal section is vertical to the abscissa axis. The flexible hinges angular deformation is generated under torque as given in Equation(1).（1）（2）WhereThe rotation rigidity fotmula。

14、is given by Euation(3)(3)When , the flexible hinge is the circular flexible hinge. Its rotantion rigidity formula is given by Equatuin(4)(4)The rorarion rigidity formula of circular flexible hinge is consistent with the reference2.(a)(b)Figure 1 Model of elliptical flexible hinge . FEA MODEL OF ELLI 。

15、PTOCAL FLEXIBLE HINGE Ansys has some characteristics that the general finite element analysis technologt, powerful computing, and reliable result. The elliptical flexible hinges basic srtuture size is . The materical is bertllium copper alloy, ,. The FEA model is shown in Figure2(a). The model left。

16、end surface is restrained completely, the right end surface exerts bending moment . The special node 1 of the grid model right end surface represents the output displacement. The unit type chooses 3_D the entity SOLID92 unit model, the entire model usrs Smartsize to free mesh. The deformation of the 。

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标题：材料|材料 外文翻译 外文文献 英文文献 圆弧型柔性铰链刚度特性分析