Dissertation > Excellent graduate degree dissertation topics show

Safety Assessment for Featheredged Sleeve Press-Ure Vessel Containing Pit Defects and Research for Fatigue Life of Numerical Simulation

Author: JiXiaoZuo
Tutor: JinChangYi；LinQingYu
School: Guangxi University
Course: Chemical Process Equipment
Keywords: Pits Safety assessment Finite Element Fatigue
CLC: TH49
Type: Master's thesis
Year: 2008
Downloads: 205
Quote: 1
Read: Download Dissertation

Abstract


Pit defect exists in the pressure vessel in the pits at the geometry mutation resulting in stress concentration , pressure vessel safety and service life will have some impact . Based on the above considerations , the following aspects of the study . Containing the pit defect thin-walled cylindrical pressure vessel First, select the pits of different sizes in different circumstances , due to the presence of the pit , according to GB/T19624-2004 \/ sub > gt; the 0.1 pit safety assessment . The evaluation results show that : the pit defect exists in the pressure container in the safety assessment of the permitted range . Second, due to the fatigue analysis is built on the basis of the finite element static analysis , thus using the MSC. Patran FEA software exists in the container on the different types of pits static analysis, stress cloud and use Excel to analyze the results of multiple regression analysis , multiple regression equation . The regression results show that : the maximum principal stress and the stress concentration factor with the Z / the δ n < / sub> increases increasing exponential function , exponential function decreases with increasing x / (?) 's . Again , based on static analysis of the results , the use of the JB 4732 provided the fatigue design curve as well as MSC . Fatigue fatigue analysis software exists in the container on the different types of pits fatigue life analysis and multiple regression analysis using Excel , the regression equation . The results show that : the fatigue life curve analysis of fatigue analysis , as well as take advantage of the fatigue analysis software out MSC Fatigue Life With Z / the δ n < / sub> increases into reduced power function , With X / ( ? ) the increase of a power function is increased.

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. Research on the Structure and Characteristics of Permanent Magnetic Coupling,TH139
  4. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  5. Study on Contact Fatigue Life Based on Grease Variation with Temperature,TH117.22
  6. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  7. Simplified Analysis of Semi-Rigid Steel Frames under Vertical Loading,TU391
  8. Based on Nonliner Finite Element Analysis of the Infilled Wall Frame Structure,TU323.5
  9. The Fatigue State Recognition of the Driver Based on Eye Detection,TP391.41
  10. Stability Analysis of Roller Compacted Concrete Gravity Dam Based on Time-history Method,TV642.2
  11. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  12. Design of Testing Equipment for Electronic Products,TN06
  13. Research on Feed Safety of Transgenic Rice in Broiler,S831.5
  14. S-lay Installation Analysis for Deepwater Pipeline,TE973
  15. Research on Intelligent Aerial Bomb for Forest Fire Fighting,S762
  16. Multi-pin Internal Fixation of Calcaneal Fractures in Finite Element Analysis,R687.3
  17. The Analysis and Comparison of Adjacent Segment Degeneration of the Finite Element Caused by Three Posterior Lumbar Fusion Style,R687.3
  18. Research and Application of Safety Assessment Method Based on Neural Network,X937
  19. The Establishment and Preliminary Application of the Three-dimensional Finite Element Model of Ankle Joint,R687.3
  20. Environmental Effects of Poisonous and Harmful Substances in the Typical Industrial Solid Wastes,X705
  21. Different Bottom Structure of Dental Brackets Affect the Adhesiveness-Three Dimensional Finite-element Analysis,R783.5

CLC: > Industrial Technology > Machinery and Instrument Industry > Gas compression and transportation machinery > Pressure vessel
© 2012 www.DissertationTopic.Net  Mobile