Dissertation > Excellent graduate degree dissertation topics show

Analysis and Evaluation of Some Heavy Truck Drive Axle Housing’s Static and Dynamic Characteristics

Author: XuBo
Tutor: YangYing
School: Northeastern University
Course: Vehicle Engineering
Keywords: static analysis structure optimization modal analysis transient response analysis fatigue life analysis
CLC: U463.218.5
Type: Master's thesis
Year: 2009
Downloads: 44
Quote: 0
Read: Download Dissertation

Abstract


The automobile drive axle housing is the important carrying and passing component.As a very widely applicable product, banjo axle housing not only supports the weights of the vehicle, but also withstands the opposite force of traction, braking force, lateral force and vertical force as well as the counter-torque act on the wheels and transfer to the frame and body through suspension fork. Moreover, as a result of the long standing alternating load, the axle housing could get fatigue breakdown which occurs suddenly when the truck runs on the road. So, the drive axle housing must have enough intensity, rigidity and good dynamic performance, the reasonable drive axle housing design can also improve ride comfort of the vehicle.The paper is based on the FEM static, dynamic analysis and the structure optimization theory, complete the whole process of the 3D model construction and the FEA by using UG, PATRAN and FATIGUE. The simplified three-dimensional model and finite element model are constructed firstly in the paper. Then the stress distribution and deformation in four typical loading cases are evaluated in the static analysis, in which the drive axle housing bears the maximum vertical force, the maximum traction force, the maximum braking force and the maximum lateral force.; Optimize the axle housing according to the analysis results; The first twelve natural frequencies and modes under the free constraint are obtained in the modal analysis. Solve dynamic load caused by the hypothetic periodic pavement roughness, apply the dynamic load to the model and get the transient response characteristics and fatigue life of the axle housing in the transient response and fatigue life analysis.The analysis results show that the maximum stress of the axle housing is less than the allowable stress value. So the axle housing meets the strength requirement. The maximum deformation per meter of the wheel-center-distance is less than 1.5mm/m, which meets the stiffness requirements in national standards. The optimization indicates that the weight of the axle housing is reduced remarkably and the maximum stress in housing approaches its breaking-point which improves the utilization of the material, and the stress distributes reasonably. The minimum natural frequency calculated by FEM is far bigger than the frequency from road excitation. The resonance of the axle housing won’t happen when this truck is traveling on road. By transient response analysis, we can clearly see the response characteristics of the drive axle housing parts by the action of the dynamic loads. The fatigue life of the axle housing is far bigger than the designated value, and the axle housing doesn’t get fatigue rupture.

Related Dissertations

  1. The Research of Land-Use Optimization Approach Based on Non-Point Source Pollution Controlled,X24
  2. Finite Element Analysis and Optimization Design of a Tractor Cab,S219.02
  3. Chemical Construction Company Human Resource Management,F426.7
  4. Chongqing agriculture in the context of urban and rural industrial structure optimization,F327
  5. Improvement and Optimization of Pulse Continuously Variator Commission,TH132.46
  6. The Research of Japanese Primary Music Textbooks,G623.71
  7. Stainless steel industrial optimization and development mode of,F224
  8. The Design and Research of a New Type of Clamping Elements for Roller Guide,TG659
  9. The Ultimate Load and Dynamic Analysis of Transmission Tower Frame,TM753
  10. Experimental Analysis of Boom Vibration and Stress Calculation of Pipe for 46D Truck-mounted Concrete Pump,TU646
  11. Study on Aseismic of Frame Structure with Weakness Story at Bottom Considering Filled-wall Influence,TU352.11
  12. Parallel six-dimensional shaking table Design and Research,TH762.2
  13. AVIC International Plaza Building, structural stability analysis,TU973.2
  14. Based on Multi-granularity dependency graph change impact analysis method,TP311.53
  15. Vehicle-mounted snubbing workover rig derrick Design and analysis,TE935
  16. Direct-drive A / C -axis milling head double pendulum angle structural analysis and performance testing,TG547
  17. Direct-drive A / C -axis CNC universal milling head swivel double Finite Element Analysis,TG547
  18. Car engine mounting system research,U464
  19. Based on the finite element analysis to improve the design of medium-duty truck chassis and Test Research,U463.32
  20. Span steel arch structure seismic performance of,TU352.11

CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Transmission > Mechanical transmission > Drive axle > Drive Axle Housing
© 2012 www.DissertationTopic.Net  Mobile