SYNTHESIS, ANALYSIS AND SIMULATION OF A FOUR-BAR MECHANISM USING MATLAB PROGRAMMING

Abstract

The four-bar mechanism is a class of mechanical
linkage in which four links are pinned together to .
form a closed loop in order to perform some useful
motion. This has long been, and continues to be, an
effective tool for mechanical design engineers. This
paper considers synthesis, analysis and simulation
of the four-bar linkage analytically for three and
four precision positions of the motion generation
problem. Kinematic synthesis of the four-bar
mechanism using the complex number method is
presented. The results of the synthesis process are
analyzed to determine ftlotion characteristics of the
mechanism. These motion characteristics are then
used for simulation of the mechanism. Matlab
programs are written for solving the equations
developed in the synthesis and analysis problems.
Matlab 'is also used to develop user-friendly
Graphic User Interface windows for data input and
output as well asfor simulation.