Vibration simulation analysis method and device of vane pump rotor system

Abstract

The invention provides a vibration simulation analysis method and device of a vane pump rotor system. The method comprises the following steps of: utilizing a three-dimensional water body grid to establish a computational fluid mechanics model; taking a steady state calculation result as an initial value, obtaining the transient state calculation result of each vane grid unit and each hub grid unit according to preset parameters, and obtaining the transient state stress of a vane wheel through an integral method; taking the transient state stress of the vane wheel as a loading condition of a vane wheel mass point, adopting finite element analysis to carry out transient state kinetic analysis on the rotor system consisting of a main shaft, a bearing and the vane wheel mass point according to preset rotor system information, and obtaining a transient state kinetic analysis result; and according to the transient state kinetic analysis result, obtaining the vibration situation of the rotor system. By use of the method, the computational fluid mechanics model and a rotor kinetic finite element analysis model can be combined to quickly and accurately obtain the vibration situation of the vane pump rotor system under hydraulic induction, and the design requirement of the vane pump rotor system is met.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of vane pump simulation analysis, in particular to a vibration simulation analysis method and device for a vane pump rotor system. [0003] 【Background technique】 [0004] The vane pump is the core equipment and energy conversion device of the most widely used fluid delivery pipeline network system, which plays a decisive role in the safe and stable operation of the fluid delivery system. In general, the operating condition of the vane pump is closely related to its structural vibration, especially the vibration characteristics of the rotor system under hydraulic action. How to control the vibration intensity of the rotary system under various possible operating conditions and arrange the assembly process reasonably is one of the most important contents in the design and manufacture of vane pumps. At present, the prototype of the vane pump is mainly trial-produced according to the design plan, the h...

AI Technical Summary

Problems solved by technology

Although computational fluid dynamics technology has been widely used in hydraulic performance prediction in the field of vane pumps, various structural analysis finite element techniques have also been popularized in the field of structural mechanics simulation in the field of vane pumps, and there is also a coupling of computational fluid dynamics and finite element analysis for impeller Application cases of strength verification; however, there is no known information disclosure and existing application cases on how to accurately obtain the vibration information of rotor components induced by fluid by using simulation analysis method

Images