The paper analyses the stress wave propagating in a variable section bar using HONDO finite element computer program .
利用HONDO有限元程序对 应力波在变截面杆中的 传播进行了分析。
Applying classical wave theory, a concept of equivalent elastic modulus on propagation speed modification of guided wave through "variable cross-section" of metal bar embeded layer was put forward.
运用波动的经典理论，提出了导波在金属杆嵌入层“变截面”传播时波速改变的“等效弹性模量”的概念。
When the 8 bar mechanism turn into 9 bar mechanism, the variable section curve of the piston skirt can be formed by the 9 bar mechanism.
当把该八杆机构变成九杆机构时，该九杆机构可以成型活塞变截面曲线。
应用推荐