Mechanism Design - Enumeration of Kinematic Structures According to Function P6 docx

... are encouraged to refer to Gibsons [1] and Harary [2] for more detailed descriptions of the theory. 2.1 Definitions A graph consists of a set of vertices (points) together with a set of edges or ... 2 to the sum of the product i × L i . Hence,  i iL i = 2e. (2.7) Let v k denote the number of vertices of degree k, namely,v 2 denotes the number of vertices of degree two,...

Ngày tải lên: 17/12/2013, 13:15

... the nature of connection among various links of a kinematic chain is called the structural analysis or topological analysis. To facilitate the analysis, several methods of repre- sentation of the kinematic ... Creation of Mechanisms According to Kinematic Structure and Function, Journal of Environmental and Planning B, 6, 375–391. [7] Freudenstein, F. and Yang, A.T.,...

Ngày tải lên: 17/12/2013, 13:15

... Symbol Number of vertices v Number of links n Number of edges e Number of joints j Number of vertices of degree iv i Number of links having i joints n i Degree of vertex id i Number of joints on ... Degrees of Freedom The degrees of freedom of a mechanism is perhaps the first concern in the study of kinematics and dynamics of mechanisms. The degrees of freedom of...

Ngày tải lên: 17/12/2013, 13:15

... number of gear pairs is equal to the number of independent loops; the number of turning pairs is equal to the number of links diminished by one; and the number of degrees of freedom is equal to the ... graph of n vertices. However, some of the graphs may be rejected due to violation of the structural characteristics, whereas others may be isomorphic to one another....

Ngày tải lên: 17/12/2013, 13:15

... housing. The torque converter has three purposes. First of all, it serves as a fluid coupling to provide a smooth transmission of torque from the engine to the wheels. It also allows a vehicle to stop ... we first identify the functional requirements. Then, we translate some of the requirements into structural characteristics for the purpose of enumeration of the kinematic...

Ngày tải lên: 26/12/2013, 00:16

... manipulators for which the number of limbs is equal to the number of degrees of freedom of the manipulator, and the total number of joint degrees of freedom in each limb is equal to the value of C k . The ... Japan.) kinematic structures of parallel manipulators according to their nature of motion and degrees of freedom. 9.2.3 Enumeration of Planar Parallel...

Ngày tải lên: 26/12/2013, 00:16

... accomplished by a com- puter program using a nested-do loops algorithm to vary the value of each x i and check for the validity of the solutions. A more rigorous procedure for solving one linear ... first discuss a method for solving one equation in n unknowns. Then, we extend the method to solving a system of m equations in n unknowns. A.1 Solving One Equation in n Unknowns Consider...

Ngày tải lên: 26/12/2013, 00:16

Ngày tải lên: 26/12/2013, 00:16

... Independent Loops: Four to Eight Vertices. © 2001 by CRC Press LLC Appendix C Atlas of Graphs of Kinematic Chains This appendix provides an atlas of graphs of kinematic chains having up to three independent ... to three independent loops and eight links. Table C.1 Graphs Having One Independent Loop: Three to Eight Vertices. © 2001 by CRC Press LLC Table C.4 Graphs Having T...

Ngày tải lên: 26/12/2013, 00:16

... One-dof Eight-Bar Linkages: Part 3. © 2001 by CRC Press LLC Appendix D Atlas of Planar Bar Linkages This appendix provides an atlas of planar linkages classified according to the number of degrees ... CRC Press LLC Table D.2 Planar One-dof Six-Bar Linkages. Table D.3 Planar One-dof Eight-Bar Linkages: Part 1. © 2001 by CRC Press LLC Table D.10 Planar Two-dof Nine-Bar Linkages: Part 2...

Ngày tải lên: 26/12/2013, 00:16

... E.1 Spatial One-dof Four-Link Chains. © 2001 by CRC Press LLC Table E.2 Spatial One-dof Five-Link Chains. © 2001 by CRC Press LLC Table E.3 Spatial One-dof Six-Link Chains. Table E.4 Spatial One-dof Seven-Link

Ngày tải lên: 26/12/2013, 00:16

... Wahnsiedler Mechanics of Composite Materials Autar K. Kaw Mechanics of Fatigue Vladimir V. Bolotin Mechanism Design: Enumeration of Kinematic Structures According to Function Lung-Wen Tsai Nonlinear Analysis of Structures M. ... creation of mechanisms. Some terminologies related to the kinematics of mechanism are defined. Mechanisms are classified according t...

Ngày tải lên: 27/06/2014, 15:20

... of Non-fractionated Two-Degree- of- Freedom Epicyclic Gear Trains, ASME Journal of Mechanisms, Transmis- sions, and Automation in Design, 111, 4, 524–529. [32] Tsai, L.W. and Roth, B., 1972, Design ... number of links, type of joint, and number of joints needed to achieve a given number of degrees of freedom of a desired mechanism. During this phase of study, the desi...

Ngày tải lên: 02/07/2014, 12:20

... Uni- versity, New York, NY. [10] Sohn, W. and Freudenstein, F., 1986, An Application of Dual Graphs to the Au- tomatic Generation of the Kinematic Structures of Mechanism, ASME Journal of Mechanisms, ... Automation in Design, 108, 3, 392–398. [11] Tuttle, E.R., Peterson, S.W., and Titus, J.E., 1989, Enumeration of Basic Kine- matic Chains Using the Theory of Finite Group...

Ngày tải lên: 02/07/2014, 12:20

... Uni- versity, New York, NY. [17] Sohn, W. and Freudenstein, F., 1986, An Application of Dual Graphs to the Au- tomatic Generation of the Kinematic Structures of Mechanism, ASME Journal of Mechanisms, ... well-known geared five-bar mechanism. FIGURE 6.12 Geared five-bar chains. 6.2.3 Planar Cam Mechanisms The enumeration of cam mechanisms is similar to that of geared mec...

Ngày tải lên: 02/07/2014, 12:20