论文部分内容阅读
在水击模型实验中，采用纵向翼形管是模拟水击波速的有效途径之一．为了便于确定翼缘长度，满足模型设计，本文应用结构力学方法和平面有限元方法研究了翼缘长度、管壁厚度、管道半径、管材的弹模等关键参数对水击波速的影响，揭示了该结构型式的管道在内水压力作用下变形量与水击波速间的内在规律，并将理论计算与实验结果进行了对比，两者十分吻合．
In the water hammer model experiment, the longitudinal wing tube is one of the effective ways to simulate the water hammer wave velocity. In order to determine the flange length and satisfy the design of the model, the influences of the key parameters such as the flange length, the thickness of the pipe wall, the radius of the pipe and the elastic modulus of the pipe on the water hammer velocity are studied by means of the structural mechanics and the plane finite element method. The inherent regularity of the deformation of this type of pipe under the action of internal water pressure and the speed of the water hammer wave is contrasted. The theoretical calculation and experimental results are contrasted.