【摘要】 以 Auto CAD为支撑软件 ,利用 Auto LISP开发语言 ,建立了连杆机构计算机辅助设计系统(LGCAD) .该系统可以确定构件尺寸参数 ,验算机构最小传动角 ,绘制机构运动简图 .还可以通过改变输入参数 ,获得多种设计方案 ,进行比较选优 ,既保证了解析法设计的精度 ,又避免了繁琐复杂的公式推演及计算 .更多还原

【Abstract】 A computer aided design system of tie rod mechanism (LGCAD) is developed by means of AutoCAD as supporting software and AutoLISP as developing language. By using this system, the parameters of component dimensions can be determined, minimum driving angle of the mechanism checked, and kinematic scheme of the mechanism platted. Variety of design plans can also be obtained by means of altering imput parameters so that an optimal one can be selected after comparison among them. By doing so ,not only the design accuracy can be guaranteed as that obtained analytically, but also the tedious performance of complicated formulas avoided.更多还原