自行车计时器仿真，程序仿真一个机械自行车速度计-Cycling timer simulation, emulation of a mechanical bicycle speedometer

使用ANSYS的APDL语言仿真复合材料板的逐渐失效。。使用吴蔡失效准则模拟失效过程，并进行刚度退化。-Using the ANSYS APDL language emulation gradual failure of composite panels. . Cai Wu failure criterion using simulated failure process and conduct stiffness degradation.

超宽带信道仿真是采用的IEEE8.2.15.4a信道模型-Ultra-wideband channel emulation is IEEE8.2.15.4a channel model adopted