Dissertation > Excellent graduate degree dissertation topics show

Simulation and Research on Vibration Characteristics of Road Driving Forestry Vehicles Based on SimMechanics

Author: ChengCheng
Tutor: DengYaDong
School: Wuhan University of Technology
Course: Vehicle Engineering
Keywords: Forest operations vehicles Vertical vibration SimMechanics Suspension system
CLC: U461.56
Type: Master's thesis
Year: 2011
Downloads: 125
Quote: 1
Read: Download Dissertation

Abstract


Today's auto market is more competitive car in addition to a variety of models to meet the requirements of power and economy, vibration characteristics, namely traveling ride and ride comfort also drawn increasing attention. However, the focus is usually for passenger cars and commercial vehicles, and some engineering vehicles were overlooked. Such as forest operations vehicles, agricultural vehicles, such as high productivity, but did not have any primary suspension system, therefore particularly intense vibration. Now, many forest jobs car manufacturers have expectations to improve vehicle productivity and shorten production time and reduce the amount of vibration of the vehicle. Therefore, in order to reduce the vibration generated by the road roughness, long-term remission driver fatigue, combined with the history and current situation of the domestic and international research, the need to study the the road vibration characteristics of forest operations vehicles, based on certain assumptions and structure simplifies SimMechancis environment to build a forest operations car vehicle model using Matlab to build the test track, the simulated vehicle driving test pavement track, and simulation results with the experimental results (the components vertical vibration acceleration and steering angle) contrast, to verify the correctness of the SimMechanics simulation model. Meanwhile, existing model based on the relevant literature, established in the Simulink model of different types of suspension, such as the seat suspension, the cab suspension and chassis and suspension respectively, these Simulink suspension model import SimMechanics vehicle simulation model, compare the suspension status and changes to the forest car road vibration characteristics with different suspension conditions, and to evaluate the effects of vibration different suspension system for reducing the vertical direction of the car parts. Based on the comparison of the simulation results, get in line to reduce vibration requires a combination of the type of suspension system, and the simulation results show an appropriate increase in the speed, the combination of the type of suspension system is still significantly reduce vehicle vibration, and also prove that the original simulation The accuracy of the model. The biggest innovation of this paper is to to use SimMechanics as modeling and simulation tools, instead of the traditional simulation tool ADAMS simulation and combined with tools such as Matlab and Simulink together to complete this topic. At the same time as the input of the simulation system to simulate the real test pavement track, instead of the other literature with reference to the ISO standard analog power spectral density of the general road as road roughness input, closer to the actual test results. All in all, this article explores the SimMechanics modeling and simulation of road vibration characteristics of the new ideas and provide a reference basis for the evaluation of other types of vehicles on the road vibration characteristics. Through analysis and comparison to verify the reasonableness of the simulation model to compare the different vibration characteristics under suspension and suspension situation, and to evaluate the impact of different suspension systems for automotive vibration that SimMechanics can be used as a new tool on the simulate the vibration characteristics of the vehicle, but more research is exploratory work needs to continue.

Related Dissertations

  1. Humaniod Robot Development and Research,TP242
  2. CNC gantry machining center maglev system control study,TP273
  3. Pratical Method of Fundamental Frequency for Larhge Span Prestressed Concrete Girder Bridge with High Piers,U441.3
  4. A Kind of Five Dof Parallel Machamisms with Two Compound Active Legs Study,TP242
  5. Multi-Objective Optimization Design of Vehicle Suspension Parameters Based on Game Theory,U463.33
  6. Research on Signal Filtering Algorithms in Maglev Suspension Control,U266.4
  7. Containing Delays automotive active suspension system Damping Control,U463.33
  8. Simulation Approach to the Main Factors of Vehicle-bridge Coupled Vibration,U441.3
  9. Parametric Modeling of the Flexible Suspension System and Current Collection Analysis of Overlapping Section,U225
  10. Stiffness Identification and Analysis of Industrial Robot,TP242.2
  11. Modeling and Simulation on Tracked Single Module Motor Unit,TP242
  12. Vibration Characters Research in HTS-PM Levitation System,TM26
  13. Design and Research on Semi-Active Lateral Damper of High-Speed Train,U270.3
  14. Construction Technology and Vibration Analysis for Large Space Prestressed Structures,TU378
  15. Micro- car suspension system design and vehicle ride comfort and,U463.33
  16. Research on Vibrtion Characteristic of One New Seat Semi-Active Suspension System,U463.33
  17. Vehicle-Bridge Coupled Vibration Analysis of Non-Linear Suspension System and Continuous Curved Bridge,U463.33
  18. Conceptual Design and Structual Analysis of Cable-Stabled-Suspension Bridge with 1700 Metres Main Span,U448.27
  19. Research on Filtering and Fault-tolerant Control for High-speed Maglev Train Suspension System,U266.4
  20. Study of Levitation Force Characteristics of YBCO Bulk in Alternating Magnetic Field,O511
  21. Analysis of Human-induced Loads of Tibetan Ancient Architecture,TU312.1

CLC: > Transportation > Road transport > Automotive Engineering > Car theory > Car through sexual > Random vibration theory
© 2012 www.DissertationTopic.Net  Mobile