A new approach to the kinematic analysis of universal joints

2010 ◽  
Vol 52 (5) ◽  
pp. 332-337
Author(s):  
Gültekin Karadere ◽  
Osman Kopmaz ◽  
Emin Güllü
Keyword(s):  
Kinematic Analysis ◽  
New Approach ◽  
Universal Joints

A Generalized Approach for the Kinematic Analysis of Planar Mechanisms

1995 ◽  
Vol 209 (4) ◽  
pp. 237-244
Author(s):  
D J A Simpson ◽  
J E L Simmons ◽  
G Moldovean
Keyword(s):  
Computer Program ◽  
Analytical Method ◽  
Building Block ◽  
Kinematic Analysis ◽  
Displacement Velocity ◽  
Planar Mechanisms ◽  
New Approach ◽  
Wide Range ◽  
Complex Mechanisms

This paper describes a new approach to the kinematic analysis of planar mechanisms. The basis of the analytical method is a generic four-bar sub-mechanism which is used as the single building block from which other composite mechanisms may be created. A computer program has been written embodying this method and has been demonstrated to operate successfully providing animated displays of displacement, velocity and acceleration diagrams for a wide range of complex mechanisms.

Mechanism analysis by matrix reduction. I. Statics

1992 ◽  
Vol 439 (1907) ◽  
pp. 485-495 ◽  
Keyword(s):  
Static Analysis ◽  
Kinematic Analysis ◽  
Rigid Bodies ◽  
Mechanism Analysis ◽  
New Approach ◽  
Matrix Reduction ◽  
New Type ◽  
Articulated Assemblies

A new type of computerized design aid is described, which raises the need to carry out the simple preliminary static analysis of articulated assemblies of rigid bodies by computer; and a matrix-based method is presented for doing this. This method also forms the basis for a new approach to the kinematic analysis of such assemblies, which in turn provides the inertia (D’Alembert) forces for the static analysis.

scholarly journals Kinematic Analysis of Spatial Geared Mechanisms

2012 ◽  
Vol 134 (2) ◽  
Author(s):  
Julie Penaud ◽  
Daniel Alazard ◽  
Alexandre Amiez
Keyword(s):  
Adjacency Matrix ◽  
Kinematic Analysis ◽  
Polar Coordinates ◽  
Constraint Matrix ◽  
New Approach ◽  
Bevel Gears ◽  
Gear Trains ◽  
Complex Coefficients ◽  
Two Degree Of Freedom ◽  
General Method

In this paper, a general method for kinematic analysis of complex gear mechanisms, including bevel gear trains and noncollinear input and output axes, is presented. This new approach is based on the nullspace of the kinematic constraint matrix computed from the mechanism graph or its adjacency matrix. The novelty is that the elements of the adjacency matrix are weighted with complex coefficients allowing bevel gears to be taken into account and the angular velocity of each link to be directly expressed using polar coordinates. This approach is illustrated on a two-degree-of-freedom car differential and applied to a helicopter main gear box. A MATLAB open source software was developed to implement this method.

Computer-Aided Kinematic Analysis of Planar Mechanisms Based on Symbolic Pattern Matching of Independent Kinematic Loops

1990 ◽  
Vol 112 (3) ◽  
pp. 337-346 ◽  
Author(s):  
Wei-Hua Chieng ◽  
D. A. Hoeltzel
Keyword(s):  
Pattern Matching ◽  
Kinematic Analysis ◽  
Closed Form Solution ◽  
Form Solution ◽  
New Approach ◽  
Planar Mechanism ◽  
Solution Methods ◽  
Kinematic Loops ◽  
Automatic Mechanism ◽  
Kinematic Loop

Based on a problem decomposition strategy and a symbolic kinematic loop pattern matching technique, a new method for planar mechanism kinematic analysis has been uncovered. Since this approach directly applies an analytical, closed form solution methodology to the planar mechanism kinematics problem, a number of significant advantages over other solution methods have been observed. Firstly, when applicable, this new approach requires significantly less cpu time as compared with traditional numerical methods, making timely mechanism animation feasible. Secondly, the new approach eliminates the effect of computer truncation error, thereby eliminating numerical approximation errors. Finally, it can be used to search for initial positions of planar mechanism with specified dimensions, thereby enabling automatic mechanism sketching.

scholarly journals Mechanism with variable angle between axes of shafts.

2014 ◽  
Vol 2014 (1) ◽  
pp. 46-50
Author(s):  
Михаил Лустенков ◽  
Mikhail Lustenkov ◽  
Екатерина Фитцова ◽  
Ekaterina Fittsova
Keyword(s):  
Kinematic Analysis ◽  
Transmission Ratio ◽  
Variable Angle ◽  
Universal Joints

The design and the principle of the mechanism work, including a reducer and universal joints, are considered in this paper. The angle between the axes of the shafts can be changed during oper-ation. The mechanism works in a reducer mode when its housing is stopped. The kinematic analysis of the mechanism and the research of dependence of the transmission ratio on the angles between the axes of the shafts are given in the article.

A new approach to the kinematical analysis of universal joints

2010 ◽  
Vol 39 (3/4) ◽  
pp. 317
Author(s):  
Gultekin Karadere ◽  
Osman Kopmaz ◽  
Emin Gullu
Keyword(s):  
New Approach ◽  
Kinematical Analysis ◽  
Universal Joints

A NUMERICAL METHOD FOR THE KINEMATIC ANALYSIS OF SPATIAL MECHANISMS USING POINT COORDINATES

1999 ◽  
Vol 23 (1A) ◽  
pp. 71-81
Author(s):  
H.A. Attia
Keyword(s):  
Numerical Method ◽  
Kinematic Analysis ◽  
Elementary Mathematics ◽  
New Approach ◽  
Cartesian Coordinates ◽  
Spatial Mechanisms

A numerical method for the kinematic analysis of spatial mechanisms with lower pairs is presented. The kinematic analysis is carried out in terms of the rectangular Cartesian coordinates of some defined points in the links and at the kinematic joints. The formulation in terms of this system of coordinates is simple and it involves elementary mathematics. The method suggests a new approach for choosing and classifying the different points and links in the mechanisms. Two examples are used to demonstrate the simplicity and efficiency of the proposed method.

Qualitative Analysis and Calculation of Planetary Gear Mechanisms Based on the Method of Speed Triangle

2013 ◽  
Vol 448-453 ◽  
pp. 3365-3368
Author(s):  
Wen Zi Gong
Keyword(s):  
Qualitative Analysis ◽  
Kinematic Analysis ◽  
Planetary Gear ◽  
Gear Transmission ◽  
Basic Knowledge ◽  
New Approach ◽  
Single Row ◽  
Gear Mechanism ◽  
Instantaneous Center ◽  
Planetary Gear Mechanism

Starting with the degree of freedom, constraints, instantaneous center and other basic knowledge points, the size of transmission ratio and direction of a single-row planetary gear mechanism were qualitatively analyzed and calculated by using the method of speed triangle, and a new approach to the kinematic analysis on planetary gear mechanisms is provided after eight kinds of single-row planetary gear transmission schemes have been summed up.

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