Dissertation > Excellent graduate degree dissertation topics show

Stress Analysis and Structural Optimization of the Frame of Double-well Pumping Unit

Author: YangYuan
Tutor: ShuHengMu
School: China University of Petroleum
Course: Mechanics
Keywords: the frame of double-well pumping unit finite element analysis stability analysis structural optimization modal analysis reliability analysis
CLC: TE933.1
Type: Master's thesis
Year: 2011
Downloads: 53
Quote: 0
Read: Download Dissertation

Abstract


The frame is an important part of pumping unit, which bears the whole weight of oil production extraction equipment and provides the space for movement of oil extraction equipment during the oil production process. The strength and stiffness of the Frame determines its stability and reliability, at the same time it must have advantages of saving steel, reducing weight, reducing labor intensity. Therefore, it is necessary to do static analysis, structural optimization, structural stability analysis and structural reliability analysis for the frame.This paper takes the frame of double-well pumping unit from SHENGLI Oil Production Technology Research Institute as the research objective; the mechanical performance, natural frequency, structural optimization, stability and reliability of the frame have been studied. The finite element analysis software ANSYS is used to do the static analysis for two kinds of frame of double-well pumping unit. The distribution of stress and strain is obtained as well as the stiffness of the frame, and the best structure of the frame is found by comparing.Research on the modal analysis of the frame is done used ANSYS,and the first six grades of natural frequency with corresponding vibration modes is obtained. The conclusion shows that the frame will not resonate with the external environment. By using elastic stability theory, the stability of the support beam and the composite beam was checked, and the composite beam was checked under two different conditions: considering and without considering the sheer stress. Finally, the analysis results shows that the frame is safe and local buckling will not occur; using ANSYS,the linear buckling and nonlinear buckling analysis is done, , the results show that Instability of the overall structure of the Frame will not happen.By using the method of program selection and ANSYS structural optimization module, the structure optimization has been completed. The optimal structure has been found and the weight of the frame has been reduced. The basic principles of the Monte Carlo method and response surface method have been studied; the reliability of the frame of double-well pumping unit is calculated and analyzed through comparison by using Monte Carlo method and response surface method respectively,the results show that the frame structure is reasonable and reliable.

Related Dissertations

  1. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  2. EDM Electrode Wear Mechanism and Control Research,TG661
  3. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  4. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  5. Design of Testing Equipment for Electronic Products,TN06
  6. Finite Element Analysis and Optimization Design of a Tractor Cab,S219.02
  7. Multi-pin Internal Fixation of Calcaneal Fractures in Finite Element Analysis,R687.3
  8. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  9. Sham hose drum drive means and hydraulic system of the structure,TE973
  10. The magnetorheological damper mechanical properties and Gun Recoil,TB535.1
  11. Nonlinear Structural Dynamics Analysis and Optimization Design on Naval Gun Driver,TJ391
  12. Optimization of Zhenqing two standard K29 450 to K29 900 paragraph excavation slope stability analysis and reinforcement,U418.52
  13. Design and Analysis of Automatic Steel Pipes Butt Tool,U673.38
  14. Analysis on Unloading of Large Span Steel Structures and Research on Its Mechanical Analysis,TU391
  15. Design of Motorcycle Frame and Its Mechanics Analysis,U483
  16. Simulation of the Clinching Process Using FEA Method with Steel and Aluminum Alloy Sheets for Automotive Sunroof Frame,U463.83
  17. M1 of CRH2-300 Train Finite Element Analysis and Travelling Comfort,U266
  18. Failure Analysis and Structural Optimization of the Typical Fine Blanking Punch,TG385.2
  19. Simulation Analysis and Experimental Study on Hysteretic Behavior of High-performance Shear Panel Damper,TU352.1
  20. Acoustics-Structure Coupled Analysis and Its Application in Simulation of Sound Transmission in Ear,R764
  21. Finite Element Analysis of Seismic Performance of Rc Beams Composite Strengthened with CFRP and Steel Plate,TU352.11

CLC: > Industrial Technology > Oil and gas industry > Oil machinery and equipment and automation > Oil and gas production machinery and equipment > Pumping mechanical equipment > Pumping
© 2012 www.DissertationTopic.Net  Mobile