着重分析了相间作用力，包括壁面剪切应力、虚拟质量力、拖拽力，对压力波传播速度和衰减的影响。
The interphase forces on the propagation were investigated, including wall shear stress, virtual mass force and drag force.
本文提出了用频谱法计算不规则波和同向水流对孤立桩柱共同作用力的方法。
This paper presents a method for the calculation of irregular wave-current forces on an isolated pile.
分析了冲击荷载峰值的构成情况，运用压力波理论结合颗粒流的应力关系建立了龙头冲击力的计算办法，并对概化后的龙头计算其在冲击坝体时的作用力垂向分布。
The make-up of the peak value of impact loading being analysed, the theories of pressure wave and granular flow are applied to establish a calculating method for estimating the flow head impact force.
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