基于流固耦合计算的科里奥利质量流量计计算机辅助设计

科里奥利质量流量计(CMF)是一种海洋石油和天然气工业广泛应用的仪器。本文开发了一种运用有限元进行CMF的流固耦合模态分析以及振动分析的数值模拟方法,并用直管CMF的实验数据和分析数据相比较,验证该方法的可行性和准确性。在此基础上,提出两种新型的CMF模型,用开发的数值模拟方法对其进行结构尺寸以及检测点布置对灵敏度的影响等分析。该数值模拟方法为新型CMF的计算机辅助设计指明了方向。

The Computer Aided Design of Coriolis Mass Flowmeter based on Fluid-Structure Interaction Calculation

Coriolis Mass Flowmeter (CMF) is an industrial precision instrument. This paper developed a numerical simulation method for finite element modal analysis and vibration analysis of fluid-structure interaction, which was proved to be correct by comparing the analytical data with the experimental data of the straight tube CMF. Then the new type CMF model proposed by this paper were taken for an example, some influence factors on measurement sensitivity such as the dimension of the tube and allocation of the detectors were analyzed by the new numerical simulation method. Such research could point the way for the computer-aided design of new CMF.