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.
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 wave form and the spectrum of impact force as well as the variation in sound exposure level (SEL) at a fixed point were measured which representing the relative changes of the ringing noise.
对一些板和梁进行了撞击试验，测量了撞击力随时间变化的波形及其频谱。
The drivability study of piling requires modeling of the hammer impact to calculate the input force wave at the pile head.
桩的可打性研究需要模拟桩的锤击，计算出桩顶的应力波。
The drivability study of piling requires modeling of the hammer impact to calculate the input force wave at the pile head.
桩的可打性研究需要模拟桩的锤击，计算出桩顶的应力波。
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