泵送混凝土弯管流固耦合有限元分析

Finite Flement Analysis of Fluid-solid Coupling for Pumping Concrete Bend Pipe

运用流固耦合技术进行混凝土泵送管道和支架的有限元数值模拟,研究分析泵送过程中支架内力和混凝土运动规律。计算结果表明,在水平和垂直分布的管道设计中,弯管受力最大,速度和压力的提高均会增大支架支承反力。通过对混凝土泵送管道进行流固耦合静力和动力特性研究,验证了该方法模拟弯管受力特性的可行性和可靠性。

The finite element numerical simulation of concrete pumping bend pipes and brackets is carried out by using fluid-solid coupling technology. And the law of inner force and concrete movement of the bracket during pumping is studied and analyzed. Computing results show that the bend pipe is found to be most stressed in the horizontally and vertically distributed pipe design. And the increase of speed and pressure will increase the support reaction force. Both the feasibility and reliability of the method to simulate the force characteristics of bend pipes were verified by studying the static force and power characteristics of fluid-solid coupling in concrete pumping bend pipes.