Dissertation > Excellent graduate degree dissertation topics show

Research on Analysis and Detect Technology of Thermal Power Conversion Faults

Author: ZhangChengJia
Tutor: HuZheng
School: National University of Defense Science and Technology
Course: Mechanical Engineering
Keywords: Diesel engine Thermal power conversion Fault simulation Damping-displacement graph
CLC: TK428
Type: Master's thesis
Year: 2010
Downloads: 22
Quote: 0
Read: Download Dissertation

Abstract


Diesel engine is one of the most widely used power machinery of vessels. Its complicated structure causes that the fault diagnosis of diesel engine is relatively difficult. In the working process of diesel engine, thermal power conversion is the most complex and important procedure, which has many affecting factors, such as fuel injection, ventilation, cooling and lubrication etc. Any problems of those factors will cause thermal power conversion disorders and affect power output and economic parameters of the diesel engine. Therefore, conducting research on fault diagnosis technolgy is meaningful and significant to guarantee high reliability and long usage life of diesel engine.In this thesis, in order to solve thermal power conversion fault diagnosis problem, a research strategy combining simulation calculation and experimental analysis has been carried out, which mainly focused on some typical faults, such as air cooler blocking, poor atomization of injector, etc. The main achievements are as follows:(1) Analyzing the fault mechanism of thermal power conversion process of diesel engine theoretically, which provide the basis of fault simulation and experimental simulation.(2) Modeling the working process of diesel engine by using AVL BOOST, simulating and analyzing several typical thermal power conversion faults to confirm the fault rules and sensitivity of the thermal performance parameters to provide the basis of diesel engine fault diagnosis.(3) Studying the testing technology of thermal performance parameters, among which, the key problems are channel effect eliminating and BDC correction in the measuring process.(4) Designing and building "Diesel Engine Fault Diagnosis Experiment Platform" , carrying out fault simulation experiments of thermal power conversion process to verify the fault simulation and detection methods proposed in this thesis.

Related Dissertations

  1. High Pressure Common Rail Diesel Engine Fueled with Biodiesel test under different atmospheric pressure,TE667
  2. Applied Research of Emulsified Fuel on S195 Diesel Engine,TE626.24
  3. A New 185K Single-cylinder Diesel Engine Supercharged System Development,TK423
  4. Improve the Mechanics Performance of the High Strength Grey Cast Iron,TG251
  5. Get off the plateau environment with diesel engine fueled with biodiesel,TE667
  6. High - pressure common rail diesel engine management system, transmission coordination strategy,TK423
  7. Experimental study of oxygen-enriched air intake combined with EGR technology for turbocharged diesel engine emissions,TK421.5
  8. Based on multi-body dynamics of the diesel engine body structure strength analysis,TK421
  9. Stability test and the engine performance of the mixed fuel of ethanol, diesel and BED,TK428.9
  10. Flow simulation based on network analysis of diesel engine lubrication system,TK423
  11. High Pressure Common Rail Diesel Engine Calibration of the system communication module based driver development,TK423
  12. Parametric design of the diesel engine inlet passage,TK422
  13. 4100QB-2 diesel engine fueled with bio - diesel tank Working Process Simulation and Experimental Study,TK427
  14. Causes and Measures of Engine Block Leakage,TK428
  15. CFD Simulation Analysis of Diesel Locomotive Intercooler Performance,TK423
  16. CFD Analysis of Water Jacket Flow Field in Multi-cylinder Diesel,TK421
  17. Numerical Simulation on Effects of Injector Nozzle-Hole Layout on Combustion and Emissions in a DI Diesel Engine,TK421.5
  18. Numerical Study on the Mechanism of Fuel Injection Strategy Coupled with EGR for Diesel Engine,TK421
  19. The Development of A Hd Diesel Engine Combustion System Based on EGR,TK423
  20. Design of Electronic Control Unit for Electric Supercharger,TK423
  21. Investigations on Performance of a CR Diesel Engine Operating on DECC,TK401

CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > Diesel engine > Repair and maintenance
© 2012 www.DissertationTopic.Net  Mobile