基于matlab，实现变位齿轮的精确建模-To achieve accurate modeling of variable gea

利用matlab编制直齿圆柱齿轮应力计算程序，并把程序成GUI界面（matlab原理与工程应用（第二版）中的实例加以改编）-Using matlab to prepare spur gear stress calculation program, and the program into a GUI interface (matlab Principles and engineering applications (second edition) instance be adapted)