Dissertation > Excellent graduate degree dissertation topics show

Study on the Theories of Self-Synchronization for Resonating System with Two-Motor Drives

Author: GaoKe
Tutor: ZhaoChunYu
School: Northeastern University
Course: Mechanical and Electronic Engineering
Keywords: Self-synchronization Near-resonant Frequency acquisition Electromechanical coupling Stability
CLC: TH113.1
Type: Master's thesis
Year: 2008
Downloads: 63
Quote: 0
Read: Download Dissertation

Abstract


Since found that the vibration of the mechanical system synchronization, the electromechanical coupling characteristics of self-synchronous vibration system has been nearly half a century of history, at home and abroad synchronous vibration theorists have made outstanding contributions to the development of self-synchronous vibration theory, accumulated a lot of valuable research results. However, from the development process of the synchronous vibration theory, at this stage, established the theoretical basis of most of the double eccentric rotor phase as a parameter, and the characteristics of the motor itself in the process of motor work; most of the research object to discuss the motor rotor moment of inertia and the same coefficient of resistance of the system, but also a large number of studies as the research object, based on the motor to work in the far-resonance state of the vibration system involves little near resonance synchronization theory. In the actual production process, the resonant system has many projecting conducive to the production of practical advantages, and the parameters of the motor there is unavoidable difference. Therefore, the use of electromechanical coupling theory, to further study the dynamic characteristics of the vibration of the synchronization system development, deepen the self-synchronous vibration theory, the establishment of a near-resonant system synchronization theory to provide a theoretical basis to guide the actual production of such mechanical systems design and debug, very important theoretical significance and practical value. This paper studies a dual-motor drive vibration system in the state of near-resonant self-synchronization theory, mainly to complete the following aspects of the work; (1) the use of Abtaining the force of eccentric rotor inertia system analysis, the mathematical model in the same direction as the rotation and reverse rotation dual-drive near-resonant vibration system state. (2) the use of electromechanical coupling theory, the same direction rotation and reverse rotation dual-drive vibration system, self-synchronization theory in the near-resonant state. First, the use of asynchronous motor voltage synchronous coordinate system, derived steady-state operation of the motor electromagnetic torque and speed; Second, two rotor rotation frequency and phase variables by coupling dynamics analysis is derived from the synchronous vibration frequency capture of the system of equations, the concept of \obtained system synchronization stable conditions and Implementation of synchronous drive system vibration conditions. (3) According to the theoretical analysis, draw near resonant state of the self-synchronous vibration system frequency capture torque characteristics: i.e., the system frequency to capture the moment with the two eccentric rotor phase difference of half of the sine value of the plot, in phase resistance rectangular Advance on the rotor to limit its speed increases, while the other half of the role of the driving torque form the rotor phase lag limit its speed reduced; when the system enters the synchronization state of steady state operation, the system capture torque acting on the system. (4) the use of the coupling dynamics theory, analysis of the near-resonant state, the same direction and reverse rotation dual-drive to vibration two different exciter synchronization feature, draw the system to achieve two different vibration exciter frequency capture conditions and the stability of the synchronization status conditions. (5) through computer simulation proved the correctness of the results of the theoretical analysis.

Related Dissertations

  1. Analysis and Study of Abutment Stability in Concrete High Arch Dam by Three-Dimensional Nonlinear Finite Element Method,TV642.4
  2. The Study on Structural Calculation and Analysis Method of Lattice-type Crane with Variable Cross-section Boom,TH21
  3. Power System Dynamic Voltage Stability Simulation Study Based on Precise Integration Method,TM712
  4. Simulation and Analysis about Switched Reluctance Generator Power Supply System,TM31
  5. Research and Design for the Laser’s Power Control System of Laser Direct Writing,TN249
  6. Stability Analysis of Systems with Time Delays,TP13
  7. Research on Input-To-State Stability of Discrete-Time Nonlinear Systems,TP13
  8. Astudy on Samuel Huntington’s Theory of Political Stability,D09
  9. Stability Analysis of Roller Compacted Concrete Gravity Dam Based on Time-history Method,TV642.2
  10. Thermal Stability of Complexes of Chitosan Quaternary Ammonium Salt and Metal Ion,O634
  11. Synthesis and Application of the chloro- methoxy fatty acid methyl esters,TQ414.8
  12. Breeding of High-Yield Pigment Production Monascus and Studies on Pigments’ Qualities,TS202.3
  13. On Ohba’s Conjecture of One Class of Complete Multipartite Graphs,O157.5
  14. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  15. Research on Anti-periodic Solutions of Delayed Cellular Neural Networks without Assuming Global Lipschitz Conditions,TP183
  16. Characterization and Properties of capsaicin / CD system,TQ450.1
  17. Preparation and Properties of lead-free glass powder,TQ171.6
  18. Preparation and Evaluation on the Toxicological Safety and Stability of Deer Blood Wine,TS262.91
  19. Evaluation on Stability of Threshing and Redrying Lamina Structure of Tobacco,TS443
  20. Generator Excitation System of the Anti-saturation Control,TM301.2
  21. Differeces in Physical and Chemical Properties and Organic Carbon Stability of Black Soil between Cropping Systems in Northeast China,S153

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