Dissertation > Excellent graduate degree dissertation topics show

The Development of In-plane Vibration Measurement System with Laser Doppler Vibrometer

Author: ShaoHanQiang
Tutor: JiZhiCheng；SunXiaoPing
School: Jiangnan University
Course: Control Engineering
Keywords: ultrasonic motor Laser Doppler in-plane vibration modal testing measurement system
CLC: TM359.9
Type: Master's thesis
Year: 2008
Downloads: 106
Quote: 0
Read: Download Dissertation

Abstract


This thesis is a part of the National Natural Science Foundation (No. 50235010) : The development of in-plane vibration measurement system with Laser Doppler vibrometer.Currently, the research of such USM based on in-plane vibration mode needs to test the in-plane vibration mode, and the other types of USMs also need to check whether there existing such in-plane vibration mode, which is useless and leads to inefficiencies.The 3-D laser vibration measurement system of the Polytec company could be used to test the in-plane vibration mode of the stator of USM, but it is very expensive.Based on the above reason, the main works of the thesis are summarized as follows:(1) Analysing the characteristics of in-plane vibration mode and using the laser sensor head LSV065-306F (Polytec Company)to develop a measurement system which could be used for in-plane vibration modal testing.(2) According to the good characteristics ( rapid response,self-locking and etc.) of USM, we use two traveling wave type rotary ultrasonic motors(TRUM) as the driver of the X-Yworktable, which can reach 2μm in precision.(3 ) Using DDS technique to generate incentive signal for modal testing; using radix-2 FFT algorithm to handle sweep signal, then we can get the Amplitude- Frequency map. Through the Amplitude- Frequency map, we can find the modal frequency; using the Least-squares fitting method to get the amplitude and phase of every point, then drawing the modal shape.(4) Using the measurement system to measure some stators and achieving good results.

Related Dissertations

  1. Research and Application of the Oil Gas Water Measuring Technique Based on GLCC,TE33
  2. Optimization Research on the Cone-type Travelling Wave Ultrasonic Motor,TM359.9
  3. The Design of Laser Doppler Velocimetry,TN247
  4. Optical System Design of a Portable Laser Doppler Velocimeter,TN247
  5. Research on a Novel Dual-frequency Laser Doppler Velocity Measurement Method,TN247
  6. Develop and Application on the Outer Diameter Automatic Measursment System of Precision Coaxial Inner Conductor,TG81
  7. Structural Strength and Vibration Analysis of the Turbo-generator Stator,TM311
  8. Measured in the study Free based on MINITAB15 software platform for the small area of ??the die,TM923.61
  9. Research on Friction-wear Experimental Device and Wear Experiment for Traveling Wave Type Ultrasonic Motor,TM359.9
  10. Research on the Ultrasonic Motor Driving and Control Based on the Resonant Booster,TM359.9
  11. Research on Phase-shift PWM Driving and Control of Traveling-wave Ultrasonic Motor,TM359.9
  12. Research on Traveling Wave Usm Using Cantilevel Type Bending Mode Sandwich-Transducer,TM359.9
  13. Low Voltage Driving Ultrasonic Motors Based on Multilayer Piezoelectric Ceramics,TM359.9
  14. Voltage Stability Real-time Monitoring Based on Wide Area Measurement System,TM712
  15. Experimental Study of Radiator Module in Vehicle,U467.3
  16. Recycling metal crushing test equipment and crushing mechanism,TH87
  17. The Micro Motor Speed Measuring System Based on Laser-Doppler Effect,TN249
  18. Study on PWM Control Methods of Traveling Wave Ultrasonic Motor,TM359.9
  19. Research on the Pneumatic Control Valve Driven by Ultrasonic Motor,TM359.9
  20. Research of the Vibration Characteristic Analysis and Flow Field Sound Field Simulation on Automotive Engine Exhaust System,U464.134.4
  21. Research on Radial Bengding Mode Ultrasonic Motor Using Embedded Piezoelectric Elements,TM359.9

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