计算机辅助绘制四杆机构性能图谱

本文以平面铰链四杆机构空间模型为基础，介绍了采用计算机和绘图机绘制四杆机构性能图谱的方法。论述了空间三坐标图向平面的转换；点的三坐标向二坐标的转换方法及变换公式。以传动角和从动件摆角图谱为例，说明了这种方法的应用。

COMPUTER AIDED CONSTRUCTION OF THE CHARACTERISTIC DIAGRAMS OF THE FOUR-BAR LINKAGES

In this paper, an method to plot the characteristic atlas of the d-bar linkages using computer and plotter is presented on the base of the space model developed by the authors. Our research is specially concerned with how the spatial 3-dimensional configuration is transformed to the planar one and how a point in the space model is shifted to the case of its two-dimensional parameters. In this paper, the formulas of transformation are also examined. As examples, several type of characteristic diagrams are plotted to illustrate the results gained which are quite useful to the designations of the 4-bar mechanisms.