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。
There are no rules to follow in the calculation method for designing peak flow in river confluence reaches. There are some simple empirical approaches frequently-adopted in engineering works.
河流交汇处设计洪峰流量的计算方法无规范可循，工程上常采用一些简单的经验处理方法。
This paper studies a new method that determines fluid transit time by automatically tracking the peak value of the software correlation device used for measuring two-phase flow.
本文探讨一种以单片机为核心的两相流测量用软件相关仪中自动跟踪峰值，以确定流体渡越时间的新方法。
When the pump runs off the peak efficiency, the error of conversion method decreases in the large flow-rate region, while increases in the small flow-rate region, with a maximum error of 3.043%.
水泵装置在非最优工况下变速运行时，大流量侧装置性能参数按相似律换算误差变小，在小流量侧换算误差增大，最大相对误差达3.043%。
When the pump runs off the peak efficiency, the error of conversion method decreases in the large flow-rate region, while increases in the small flow-rate region, with a maximum error of 3.043%.
水泵装置在非最优工况下变速运行时，大流量侧装置性能参数按相似律换算误差变小，在小流量侧换算误差增大，最大相对误差达3.043%。
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