With the increasing of thickness of rock fill, the wave force coefficient on the perforatedwall generally decreases, while the reflection coefficient increases.
增加消浪室内填料厚度通常可以降低开孔墙结构的波浪力系数，加大结构的反射系数。
2
Secondly, the equivalent plane truss element analysis program of plane stress problem is worked out, by which cantilever beam, simple beam and perforatedwall are analyzed.
其次，编制了平面应力问题等效铰结平面桁架单元有限元法分析计算机程序。
3
The device may comprise an additional plunger body for being disposed in said space and so as to define a peripheral gap between the plunger and the perforatedwall of the device.