Study of kinematic and kinetic aspects of mechanisms using tools of CAD solid modelers

Abstract

In engineering education, the kinematic and kinetic study of mechanisms is a subject that is as challenging to teach as it is to learn. Modern computer aided design (CAD) and solid modeling software, such as SolidWorks, enables the synthesis, analysis and evaluation of mechanisms throughout the design process and in greater detail than has ever been available. In the past, a designer carefully selected a limited number of instants in time where position, velocity, acceleration, force and torque were painstakingly determined to evaluate performance. This was a complex process that required skill and attention to detail. Now, using solid modeler tools such as Sketch, Assembly and Motion Study, these parameters can be continuously evaluated throughout the cycle of a mechanism whether it be simple or complex. As an example, a relatively simple rocker linkage is modeled. The results of motion parameters at specific stages of the cycle are determined theoretically and compared to those obtained using the solid modeler.