Dissertation > Excellent graduate degree dissertation topics show

Research on Damping Properties of Separated and Manually Adjustable Shock Absorbers Oriented to Damping Matching

Author: DuChunXiao
Tutor: SongDaFeng
School: Jilin University
Course: Vehicle Engineering
Keywords: separated and air-charged adjustable damping shock absorber dampingcharacteristics damping matching simulation and testing trial production
CLC: U463.33
Type: Master's thesis
Year: 2012
Downloads: 73
Quote: 0
Read: Download Dissertation

Abstract


Automotive shock absorber is an important component of damping in suspensionsystem,and its performance effects fide security and comfort of vehicle significantly．Nowtraditional passive hydraulic shock absorber remains the most popular type in suspensionsystem of vehicle，and it has some limitations for example，low critical velocity,possibledistortion of outer performance， large concussion． With the development ofactive-suspension and semi-active suspension technology,design and development ofadjustable-damping shock absorber is pay more and more attention．The thesis took researchon a separated and air-charged adjustable damping shock absorber which has been appliedgradually in foreign，and it has large range of load adjustability and also improve overallperformance remarkably because of adopting air-charged technology．analyzing its structureand working principle，researching its performance characteristics，and grasping its designtechnology is significant for improving research level independently of indigenousvehicle-used shock absorber products．This paper first introduces the current development of the separate manually adjustableshock absorber and it’s superiority compared with the other shock absorber, after clearresearch objectives, study the structural characteristics of the separate manually adjustabledamper and how it works, and analysis of its key componentscharacteristics and workcharacteristics of the law so that provide a theoretical basis for the establishment of theshock absorber mathematical model.Then combined with the theory of fluid mechanics to establish the shock absorbermathematical model, at the same time, get test data and curves of separate manuallyadjustable shock absorber damping characteristics by bench test. Use MATLAB tosimulation the characteristic curve of the speed of the shock absorber on the basis of themathematical model, based on the build shock absorbers mathematical model and its underlying assumptions. The simulation curves and experimental curves were compared toverify the correctness and accuracy of the model. Further simulation and analysis affect ofparts of structural changes on the damping characteristics. In order to provide a theoreticalbasis to structural parameters designing and vehicle damping matching.Finally, put forward rehabilitation programs of separate manually adjustable dampingshock absorber, against binoculars shock absorber for the mini-cars, and processing of sucha shock absorber providing a hardware foundation for the vehicle damping matching study.

Related Dissertations

  1. Research on the Application of 500KV Transformer Substation Simulation Training System,TM743
  2. Study of Heat Transfer and Pressure Drop of Water Cut Oil in Tubes with Internal Fins,TK124
  3. Research on the portable relay testing system,TM774
  4. The Research and Realization of Turbine Governing System Simulation & Testing Device Based on DSP,TK730.7
  5. 80C196 series processor control system software, all-digital simulation assessment technology research,TP368.12
  6. Dynamic Research on Marketing System,F274
  7. The Research of CCD Noise Model for Circuit Simulation and Testing Based on Camera,TN386.5
  8. Study on Nongxing Series of New Strain of Tea in Regional Test Related Characters and Quality,S571.1
  9. The Development of Tree Self-Elevating Seed Collecting Machine,S776.222
  10. Combustion Fronts Position Judging Methods Analysis for In-Situ Combustion,TE357.44
  11. Mobile product commercialization pilot production quality control applied research,F626
  12. Experimental and theoretical study of the 12% Cr steel hot forging cracks,TG142.1
  13. Research on Fault Injection of Safety Critical Software in Railway Signal System,TP309
  14. The CTCS-3 Simulation and Testing Platform,U284.48
  15. Study of Characteristics,Suitable System and ISSR Molecular Mark of High EGCG Tea Tree of1005New Strain,S571.1
  16. The Discrete Frequency Conversion Technology and Harmonic Performance Testing of the Permanent Magnet Synchronous Motors,TM341
  17. Failure Analysis of KL-7Type Bucket Wheel Reclaimer’s Boom Institution,U653.928.5
  18. CTCS-3Simulation and Testing Platform-the Research and Realization of the Temporary Speed Restriction Server Simulation Subsystem,U284.48
  19. Analysis and structural design based on the principle of the impact of technological innovation tapping,TG62
  20. Manufacture Enterprise New Product Trial Production Project Management Applied Research,F273.2
  21. Study on the Technique of the Resin Transfer Molding for the Main Insulative Board of the Open Circuit Insulator of the Light Rail,TQ320.66

CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Travel System > Suspension
© 2012 www.DissertationTopic.Net  Mobile