Analysis Of Pump Shaft Fracture Of The Original Steady Light Hydrocarbon Transfer Pump

The pump is the most common equipment in the field of chemical industry.And the pump shaft is an important,which takes problem easily and core component. Analyzing the state of the pump shaft forced correctly is very important to ensure safe operation, saving material pump, and the economy of the pump.It is very difficult to find the data of vertical multistage centrifugal pump and fractured pump shaft throughout all kinds of domestic and foreign literature material. At the same time, there is no man research the finite element analysis of vertical multistage centrifugal pump shaft.This paper researches the fractured vertical multistage centrifugal pump shaft.In a traditional shaft designs commonly used formulas related to the design, accuracy is not high, the safety factor is too large, the economy is poor. The finite element technique was applied to the design of shaft parts, especially for checking on the strength of parts, with a strong practicality. COSMOS software is a generic which is very broad, very practical, powerful, widely used in engineering finite element analysis software, in its large number of application areas, mainly for checking the strength of solid components and stress analysis.The topics of this paper is a combination of production practices, the COSMOSWorks finite element analysis module and the SolidWorks 3D modeling software are applied in this paper to analysis the mechanical behavior for failure causes shaft fracture. According to the specific load conditions of Vertical multi-stage centrifugal pump shaft, the paper use the finite element static analysis, dynamic mode and transient analysis methods to analysis and calculate its strength, rigidity, vibration and so on.This paper will focus on performing the following work: According to the situation by force, Carried out on the pump shaft static analysis of, Obtained in the static conditions of the principal stress distribution of, And in accordance with the third and fourth strength theory was checking calculation of its; Using finite element modal analysis method, Estimates derived from the natural frequency of the pump shaft and shaft of the vibration mode; Transient Kinetic Analysis, Inspection shaft at the time-varying loads the deformation and stress distribution of, Reached the breaking point of the pump shaft fatigue usage factor.After calculation and research, Gives a COSMOS-based software, the finite element method to the shaft of static, dynamic strength, stiffness and vibration situation analysis method. Proven, the data obtained from this method is relatively accurate and more realistic, Which has good prospects of practical value and promote the use of.In this paper, from the strength, fatigue, vibration, etc. causes fracture of the shaft in-depth discussions. Put forward a progressive multi-stage vertical centrifugal pump shaft fracture and stress analysis of the reasons for a new method of. At the same time, this article provides a great deal of analysis results, This is to continue research on this type of shaft has a certain value.