Dissertation > Excellent graduate degree dissertation topics show

Vibration Characteristics of Car Steering Pump Permanent Magnet Motor

Author: QinYun
Tutor: LiuJianPing
School: Tianjin University
Course: Mechanical Design and Theory
Keywords: Permanent magnet motor Torque ripple Modal characteristics Natural frequency division Vibration mode coupling
CLC: TM351
Type: Master's thesis
Year: 2009
Downloads: 36
Quote: 1
Read: Download Dissertation


Permanent magnet motor as the medium of a magnetic field of electromechanical energy conversion device , because of its advantages of energy-saving , environmental protection , simple structure , China's energy and environmental policies to promote the development of a new type of motor . The nature of the permanent magnet motor is a containing pulsation excitation symmetrical bodies, will inevitably produce vibration and noise, and to affect the performance of the motor . The financial support of the National Natural Science Foundation of China ( 50705062 ) , automobile steering pump with a permanent magnet brushless DC motor , for example , to carry out the study of the electromagnetic properties and modal characteristics of the motor body . The main content of the paper is as follows : electromagnetic finite element analysis : using the finite element method to establish the electromagnetism model of the motor , the flux density and electromagnetic torque harmonic analysis , and to explore the stator eccentricity of the electromagnetic force , electromagnetic moment of impact . The study laid a theoretical foundation to further reduce the unbalanced magnetic pull of the motor , and improve their electromagnetic properties and subsequent vibration analysis . Finite Element Analysis : using the finite element method to establish the mechanical structure of the motor model , and its modal characteristics analysis revealed the modal characteristics of the system , given the natural frequencies and mode shapes of the spatial distribution of the characteristics and the stator and the rotor of the motor resonance checking . Mode perturbation analysis : direct perturbation method to analyze the modal characteristics of the rotor , the number of cycles of the rotor modal characteristics reveal the motor rotor magnet motor rotor cyclic symmetric configuration features the natural frequency of the periodic structure of the type of cyclic splitting rule and vibration modulation law . The results of the study steering pump with permanent magnet brushless DC motor 's dynamic design laid the theoretical basis for analysis , but also for other types of permanent magnet motor vibration characteristics analysis method has a certain universal .

Related Dissertations

  1. Study on the Influence of Drive Strategies on the Loss in AC Permanent Magnet Motor,TM351
  2. Observer-based brushless DC motor control method,TM33
  3. A brushless DC motor driver of the modulation method and,TM33
  4. Switching flux permanent magnet motor three-dimensional finite element analysis and experimental research,TM351
  5. Wound rotor self- start permanent magnet motor design and performance analysis,TM351
  6. Submersible screw pump direct-drive permanent magnet motor research,TM351
  7. Low speed and high torque transverse flux permanent magnet synchronous motor control system research,TM341
  8. Research on Fuzzy PI Control System of Switched Reluctance Motor Based on Torque Distribution,TM352
  9. Flux reverse permanent magnet motor,TM351
  10. Research on Torque Ripple Minimization Techniques for Permanent Magnet Brushless Dc Motor,TM33
  11. Investigations on Vibration Characteristics of PM Motors Based on Phase Tuning,TM351
  12. Study and Design on High-Reliability Eletro-Machanical Actuator,V249.1
  13. Brushless DC motor torque ripple rejection techniques,TM33
  14. Basic Research on the New Hybrid Excitation Switched Reluctance Motor,TM352
  15. Double mechanical port permanent magnet motor design and analysis,TM351
  16. Research on Torque Ripple Minimization for Speed-Sensorless Direct Torque Control System,TM921.5
  17. Study on BLDC Motor Ceiling Fans and Controller Based on Pre-BUCK,TM33
  18. Wafer cleaning machine brushless motor and its control strategy,TM33
  19. Low torque ripple of switched reluctance motor control strategy and controller design,TM352
  20. The Study of Parameters Calculation and Structural Optimization for High-Speed Slotless Permancent Magnet Brushless DC Motor,TM33
  21. Reducing Torque Ripple of Brushless DC Motors with Bi-Directional DC/DC Converter,TM33

CLC: > Industrial Technology > Electrotechnical > Motor > A special motor > Permanent magnet motor
© 2012 www.DissertationTopic.Net  Mobile