CAJ | 학술논문

针对调节阀－管道－流体系统的流固耦合问题，建立了考虑阀门定位器作用的系统动态仿真模型，给出了求解调节阀阀芯－阀杆系统响应的预估－校正算法和求解调节阀－管道－流体系统响应的流固耦合有限元方法，利用ANSYS 软件对系统在固定开度与变开度情况和流开型与流闭型情况下振动响应进行了定性分析。研究表明：在给定压差下，管道以及流体流向对调节阀阀芯－阀杆系统的位移响应以及阀芯受到的流体不平衡力响应都有较大影响。
침대조절벌－관도－류체계통적류고우합문제，건립료고필벌문정위기작용적계통동태방진모형，급출료구해조절벌벌심－벌간계통향응적예고－교정산법화구해조절벌－관도－류체계통향응적류고우합유한원방법，이용ANSYS 연건대계통재고정개도여변개도정황화류개형여류폐형정황하진동향응진행료정성분석。연구표명：재급정압차하，관도이급류체류향대조절벌벌심－벌간계통적위이향응이급벌심수도적류체불평형력향응도유교대영향。
Aiming at the fluid-structure interaction of a control valve-pipeline-fluid system,a system simulation model was built with consideration of a valve positioner.The predictor-corrector method and the fluid-structure interaction finite element method were given for solving responses of a valve core-stem system and a valve-pipeline-fluid system, respectively.The vibration responses of the systems were analyzed with ANSYS software under the conditions of fixed and varying opening as well as flow-opening and flow-shutting.The results showed that the pipeline and flow direction have larger influences on the displacement response of the valve core-stem system and the fluid unbalanced force exerted on the valve core.