Dissertation > Excellent graduate degree dissertation topics show

Study of Statistics and Vibration Damping of Gearbox/transmission Casing

Author: Syed Rizwan Ui Haque
Tutor: Prof.Dong Yan Shi
School: Harbin Engineering University
Course: Mechanical Design and Theory
Keywords: Vibration Damp Damping material Damping Treatment Static analysis Modal Analysis
CLC: TH113
Type: Master's thesis
Year: 2010
Downloads: 143
Quote: 0
Read: Download Dissertation

Abstract


The gearbox casing plays a very important role in the support transmission parts . The box in the main shaft , gears and bearings . Since the entire gear box to withstand static and dynamic loads , so the strength of the entire gear box casing is very important. While in the process of lifting and installation of the gear box , the gear box lug strength is very important. In the entire transmission device , the vibration is mainly caused due to the gears the incentive and bearing at excitation . The vibration energy generated from the gear on the shaft , and from the shaft passed to the bearings , and thus from the bearing through the bearing block is passed to the gearbox casing . A part of the vibration energy is absorbed by the elastic member in the gearbox , while the other part of the vibration energy will actuator vibration . Vibrational energy can be controlled by modifying the structure to . However , the structure can be modified by changing the thickness of the walls of the box of the gear box or in some parts add damping to achieve. This article by adding appropriate structure of some marine gearbox damping material to reduce vibration energy simulation and finite element analysis software ANSYS . First of all , is determined according to the actual working conditions of the gear box of the lug the work load and the constraint condition of the gear box casing , and the lifting lugs of the gear box , a static analysis . State-of-the-art sub- model technology is used to obtain certain local or specify the location of the gearbox accurate stress situations . The submodel technology allows to extract from the overall model part of the model grid refinement , for further analysis . In addition , the application of the Block Lanczos method gearbox undamped modal analysis and extraction of the first ten natural frequency of the gearbox and its modes . In this paper, completion of the QR method gearbox damping modal analysis . According to modal analysis to determine the optimal thickness of the damping material SA - 3 , DFM and QZD the constraints, and the damping material of the damping material of the surface of the gear box optimum pasting position . Throughout the analysis also takes into account the temperature characteristics of the damping material respectively calculated in 25oC , 30oC , 40oC and 50oC under each damping material on the gearbox damping properties .

Related Dissertations

  1. Study on Theory and Experiment of Wire Drawing with Composite Ultrasonic Vibration,TG663
  2. Research on the 6-Dof Fault Tolerant Control of the Vibration Isolation Platform with Eight Actuators,TB535.1
  3. The Study of Control Algorithm for Automotive Power Window Based on Lin Bus,U463.6
  4. The Equivalent Circuit Model of Radial Vibration Mode Piezoelectric Transformer and Its Application,TM406
  5. Research on Structural Vibration of Steam Piping System,TK284.1
  6. Finite Element Analysis and Optimization Design of a Tractor Cab,S219.02
  7. Common TCM syndrome and serum homocysteine ??and diastolic function relationships of the newly diagnosed patients with type 2 diabetes,R259
  8. Study on Reducing the Mower Vibration by Optimizing the Crank-rod Mechanism of 170F Engine,S817.111
  9. Closed thin-walled beams composite modal damping prediction,TB33
  10. Axial fan blade vibration non-contact measurement,TD441.2
  11. Research on the Prediction of Underwater Acoustic for a Survey Ship and Reduction for Its Noise and Vibration,TB53
  12. Analysis and Evaluation of Some Heavy Truck Drive Axle Housing’s Static and Dynamic Characteristics,U463.218.5
  13. Analysis and application of large structure vibration test based on wireless sensor networks,TP274
  14. Vibrating force field mixed mechanism of plastic extrusion process,TQ320.66
  15. Vibration Isolation Design of Powertrain Mounting System of a Commercial Vehicle,U463.33
  16. Research on Dynamics Performance and Optimal Design for Constrained Damping Vibration Isolator,TB535.1
  17. Study on a Portable Measurement and Analysis Instrument for Ships Shafting,U664.21
  18. Study on Defect Inspection of Flip Chip Based on Ultrasonic Excitation,TN407
  19. The Research on the Design of Magnetostrictive Negative Stiffness Damper,TU311.3
  20. Experimental Analysis of Boom Vibration and Stress Calculation of Pipe for 46D Truck-mounted Concrete Pump,TU646
  21. Study on Aseismic of Frame Structure with Weakness Story at Bottom Considering Filled-wall Influence,TU352.11

CLC: > Industrial Technology > Machinery and Instrument Industry > Mechanics (mechanical design of the basic theory ) > Mechanical kinetics
© 2012 www.DissertationTopic.Net  Mobile