Dissertation > Excellent graduate degree dissertation topics show

The Ballastless Track the roadbed dynamic response characteristics and indoor model loaded by

Author: ZhouXiaoZhuang
Tutor: ZhangJiaSheng
School: Central South University
Course: Civil Engineering
Keywords: High - speed railway subgrade Dynamic Response Finite Element Track type Loading program
CLC: U211.3
Type: Master's thesis
Year: 2011
Downloads: 58
Quote: 0
Read: Download Dissertation

Abstract


With the acceleration of China 's high-speed railway construction , the soil subgrade on the ballasted track more and more , it is urgently needed to carry out the study of the dynamic response aspects of the roadbed in the high-speed train loads such as vibration , deformation . In this paper, the numerical simulation method to analyze the impact of different factors on the response of the high-speed railway roadbed power and load programs designed indoor model experiment to simulate different running speed of high-speed trains . This paper work content and conclusions are as follows : (1 ) a conventional indoor soil test to determine the physical and mechanical properties of the roadbed filler , also conducted field trials in the indoor roadbed model filling process , the numerical simulation analysis of relevant The calculation parameters . ( 2 ) establish a finite element model of the high-speed railway roadbed , track type of CRTS Ⅱ plate Ballastless track and the adjacent compartments adjacent bogie moving concentrated load simulation wheel load . By way of comparison of the full model and half- model two modeling , modeling to determine the full model . ( 3) Get a different train speed , different train axle load under CRTS Ⅱ slab the ballasted track fasteners reaction force -time curve . The ballastless track different types and train axle load on the dynamic response of the embankment in (4) . The results showed that : a different type of track roadbed within the dynamic stress and displacement distribution of no significant impact , different axle load under dynamic stress amplitude and displacement amplitude the approximate increases linearly with the axle load increase . ( 5) the establishment of a high-speed railway roadbed indoor model the finite element calculation model , by comparison with the original model , to verify the reasonableness of the indoor model . And load distribution beam for indoor model experiments , short rail loading loaded directly caused three track plate loading scheme Subgrade Dynamic Response . Comparative analysis to determine the optimal loading plan is short rail loading program .

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. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  6. Simplified Analysis of Semi-Rigid Steel Frames under Vertical Loading,TU391
  7. Based on Nonliner Finite Element Analysis of the Infilled Wall Frame Structure,TU323.5
  8. Stability Analysis of Roller Compacted Concrete Gravity Dam Based on Time-history Method,TV642.2
  9. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  10. Design of Testing Equipment for Electronic Products,TN06
  11. S-lay Installation Analysis for Deepwater Pipeline,TE973
  12. Research on Intelligent Aerial Bomb for Forest Fire Fighting,S762
  13. Multi-pin Internal Fixation of Calcaneal Fractures in Finite Element Analysis,R687.3
  14. The Analysis and Comparison of Adjacent Segment Degeneration of the Finite Element Caused by Three Posterior Lumbar Fusion Style,R687.3
  15. The Establishment and Preliminary Application of the Three-dimensional Finite Element Model of Ankle Joint,R687.3
  16. Different Bottom Structure of Dental Brackets Affect the Adhesiveness-Three Dimensional Finite-element Analysis,R783.5
  17. Airborne radar antenna pedestal rapid design systems research and development,TN959.73
  18. Sham hose drum drive means and hydraulic system of the structure,TE973
  19. The magnetorheological damper mechanical properties and Gun Recoil,TB535.1
  20. Nonlinear Structural Dynamics Analysis and Optimization Design on Naval Gun Driver,TJ391
  21. The Large Concrete Hydration Heat Temperature Effects Research of the Cable Stayed Bridge,U441.5

CLC: > Transportation > Rail transport > Railway Line Project > Line theory > Line vibration
© 2012 www.DissertationTopic.Net  Mobile