2, graphic method and its characteristics:
Graphic method is a method of drawing and solving according to the selected scale according to the motion relationship of the mechanism when the size of the mechanism and the motion law of the original moving parts are known. Graphic methods mainly include instantaneous center of velocity method and vector equation graphic method. When it is necessary to understand the motion characteristics of one or several positions of the mechanism simply and intuitively, it is more convenient to use graphical method, and the accuracy can also meet the requirements of practical problems.
3, analysis method and its characteristics:
There are many analytical methods for motion analysis of planar mechanisms, among which vector equation analytical method, complex number method and matrix method are easier to master and apply. However, when it is necessary to accurately know or understand the motion characteristics of the mechanism in the whole motion cycle, with the help of the computer, not only high calculation accuracy and a series of position analysis results can be obtained, but also the corresponding motion diagram of the mechanism can be drawn, and at the same time, the mechanism analysis can be linked with the mechanism synthesis problem, which is convenient for the optimal design of the mechanism.