Dissertation > Excellent graduate degree dissertation topics show

Key Structure Finite Element Analysis and Simulation of Hydraulic System for1t High-speed Hydraulic Tampers

Author: ZhangCheng
Tutor: SiGuiMao
School: Chang'an University
Course: Mechanical and Electronic Engineering
Keywords: high-speed hydraulic tamper wave mechanics ANSYS analysis AMESim simulation
CLC: TU662
Type: Master's thesis
Year: 2013
Downloads: 24
Quote: 0
Read: Download Dissertation

Abstract


After nearly20years, the highways in our country have entered into the maintenancestage and a lot of problems have appeared continuously. It can be mainly manifested in twoaspects, the first one is early damage of asphalt pavement is more serious; The second one isthe phenomenon of “abutment jump car” has been leaded because of abutment partcombined with the road subgrade uneven settlement. The main cause of these problems isthat the compaction of foundation is insufficient. In order to solve the engineering problem,it urgently needs a kind of specified compact machinery which is strong applicability, goodcompaction and high efficiency. So the research of the high-speed hydraulic tamper isproduced by this.1t high-speed hydraulic tamper（referred to as HHT-1）brings advantages such ashigher impact energy, greater effect depth and convenient transition. It can be applied to notonly common plane compaction but inclined diagonal compaction. Furthermore, its impactenergy can be adjusted to adapt for different subgrade, so it is widely applied in theinfrastructure industry.In this paper, after analyzing development situation at home and abroad of hydraulictamper, dynamic analysis is made for its working process which is based on the study oframming machine working principle and the displacement and speed function is obtained.By using the theory of wave mechanics, it analyzes the reasonable waveform and thecorresponding shape of rammer with the goal of maximizing energy, which provides atheoretical basis for the tamper and base. Then, ANSYS analysis software is used to analyzeimpact process of the tamper and base by explicit dynamic analysis. It also obtains the peakstress and strain, and makes fatigue strength check. At last, the hydraulic system is designedon the compacting machine working principle, and simulation analysis is made by AMESim.The displacement and velocity curves and activity index of the system is obtained which haslaid the foundation for simplifying the hydraulic system.

Related Dissertations

  1. 1200 tons automatic autoclaved fly ash brick molding equipment research and design of hydraulic systems,X705
  2. Research into Earth Pressure Control of Epb Shield Tunnelling Machine,U455.43
  3. Study on Inversely-Proportional Relief Valve of Lateral Semi-Active Suspension System,U270.33
  4. Research and Reliability Analysis on Light Weight Composite Material with Fly-ash and Straw,TU599
  5. The Design and Emulation of the Anti-resonant Vibrating Sieve,TH237.6
  6. Polishing abrasive flow orifice test device design studies,TG580.692
  7. Concrete pump pumping hydraulic system failure simulation,TU646
  8. Modeling and Simulation Research on Passenger Train Braking System,U270.35
  9. The Integrated Error Analysis for Coaxial of Electro-hydraulic Servo Testing Machine,TH87
  10. Research and Simulation of Steam Catapult Capacity Control System,U674.771
  11. Key Technology Research wafer lifting mechanism,TN405
  12. Research of Electric Load-Test System to Rotatory Actuator,V216.8
  13. Heavy-duty hydraulic rock drill impact research institution and its hydraulic drive systems,TD421.2
  14. Finite element analysis of 1-3 piezoelectric composite materials for ultrasonic diagnostic transducers,TB552
  15. Research on High-temperature Heat-insulating Coatings for the Electromagnetic Dryer,TQ637
  16. Reservoir Fracture Prediction of Three-dimensional Finite Element Numerical Simulation,P618.13
  17. Development of Sorting Machine with Laser Measuring Cylindrical Roller Diameter and Finite Element Analysis of the Key Components,TH133.33
  18. Design and Simulation on the Automatic Backwash High-press Emulsion Filtering Station,TD355.4
  19. The Field Test and Mechanism Research of the Shrinkage Cracks of Cat-in-situ Slab in Brick Masonry Structure,TU746.3
  20. Heat Leakages and Losses of Current Leads in Superconducting Wiring System,TM26
  21. Research and Simulation of Electro-Hydraulic Control System for 900 Ton Transporting Girder Vehicle,U215.6

CLC: > Industrial Technology > Building Science > Construction machinery and equipment > Compaction machinery > Compaction and compaction machines
© 2012 www.DissertationTopic.Net  Mobile