计算机辅助教学是教学改革的发展方向。充分地利用计算机辅助设计的优势,其目的是改革教学手段和提高教学质量。现代工程结构对构件的要求越来越高,结构的设计也从过去的静态设计准则上升到动态设计准则,所谓动态设计准则就是要求设计时考虑载荷的变化产生的动应力。使构件的固有频率远离构件的工作频率。 Computer-assisted instruction is the development direction of teaching reform. Make full use of the advantages of computer-aided design, whose purpose is to reform teaching methods and improve teaching quality. The requirements of modern engineering structure are getting higher and higher. The design of the structure also rises from the static design criterion in the past to the dynamic design criterion. The dynamic design criterion is to design the dynamic stress caused by the change of the load. The natural frequency of components away from the components of the operating frequency.