Dissertation > Excellent graduate degree dissertation topics show

Design and Research on the Resisting Noise Analysis of the Urban Rail Noise Controller

Author: HuXiaoJun
Tutor: SongLeiMing
School: Beijing Jiaotong University
Course: Vehicle Engineering
Keywords: Urban rail transit Rail noise controller The Finite Element Method (FEM) The Boundary Element Method (BEM) Modal Analysis Frequency Response Analysis Acoustic field radiated
CLC: TB535
Type: Master's thesis
Year: 2011
Downloads: 37
Quote: 0
Read: Download Dissertation

Abstract


Wheel-rail noise, which is mostly generated by vibrations of both the rail and the wheel, is the main source of noise in the urban rail system. With the principles of multi-degree absorber and damping absorber, a rail noise controller which agrees with urban rail is designed.The Finite Element Method (FEM)、modal analysis and the Boundary Element Method (BEM) are synthetically used to analyze the dynamic characteristic and the acoustic field radiated of rail and rail controller in this thesis.Firstly, according to the location of urban rail in the rail of the actual situation and the parameters of the case, a noise controller is designed with easy installed, simple structure and good resisting noise effect through access to mechanical design manuals and the fatigue strength of materials.Secondly, a finite element model of rail is built in this paper. After modal analysis, natural frequencies and modes are obtained. The result of experiment model analysis is compared to the simulation result. Damping ratios are obtained by testing frequency response function of rail.Thirdly, install the noise controller on the two-meter rail and analyze the resisting noise effect of it. Compared the experiment result with the simulation analysis result, the experiment result has a good agreement with the simulation analysis result and it shows that the finite element models of the rail and controller are correct.Finally, with changing the point position and the way of excitation, the size of small steel balls inside the shell, these factors on the resisting noise effect of noise controller are analyzed.

Related Dissertations

  1. Finite Element Analysis and Optimization Design of a Tractor Cab,S219.02
  2. Analysis and Evaluation of Some Heavy Truck Drive Axle Housing’s Static and Dynamic Characteristics,U463.218.5
  3. The Design and Research of a New Type of Clamping Elements for Roller Guide,TG659
  4. The Ultimate Load and Dynamic Analysis of Transmission Tower Frame,TM753
  5. Study on the Influence of Various Defects on the Characteristics of Infrared Photonic Crystal Fiber,TN253
  6. Experimental Analysis of Boom Vibration and Stress Calculation of Pipe for 46D Truck-mounted Concrete Pump,TU646
  7. Study on Aseismic of Frame Structure with Weakness Story at Bottom Considering Filled-wall Influence,TU352.11
  8. Research on Utilization Technique of Regenerating Braking Energy in Urban Rail Traction System,TM922.3
  9. Based on the virtual building urban rail transit construction management model,F572
  10. Parallel six-dimensional shaking table Design and Research,TH762.2
  11. Vehicle-mounted snubbing workover rig derrick Design and analysis,TE935
  12. Direct-drive A / C -axis milling head double pendulum angle structural analysis and performance testing,TG547
  13. Direct-drive A / C -axis CNC universal milling head swivel double Finite Element Analysis,TG547
  14. Car engine mounting system research,U464
  15. Urban rail transit passenger transfer station early warning and response method,U239.5
  16. Value of urban rail transport services,U239.5
  17. Based on the finite element analysis to improve the design of medium-duty truck chassis and Test Research,U463.32
  18. Span steel arch structure seismic performance of,TU352.11
  19. After installation of central brake transmission housing improvement , simulation and experimental study,U463.212
  20. Board structure acousticst sound power modal analysis,U661.44
  21. Baseband chip finger -joint design and research of CNC punch press,TG385.1

CLC: > Industrial Technology > General industrial technology > Acoustic engineering > Vibration, noise and its control > Vibration and noise control and its use
© 2012 www.DissertationTopic.Net  Mobile