Dissertation > Excellent graduate degree dissertation topics show

Structural Dynamic Characteristic Analysis and Optimization of A 5-Axis Linkage NC Machining Center

Author: WangYuBao
Tutor: ZhangDaWei
School: Tianjin University
Course: Mechanical Manufacturing and Automation
Keywords: Five-axis machining center Parameter identification Dynamic characteristic Structural optimization LMS Finite Element
CLC: TG659
Type: Master's thesis
Year: 2010
Downloads: 289
Quote: 0
Read: Download Dissertation

Abstract


Structural dynamic characteristics is an important factor to affect the performance indicators of the efficiency of CNC machining , precision CNC machine tool structure Dynamic modeling , optimization, and testing techniques have been hot research topics in the field of machine dynamics , an important academic value and engineering significance . In this paper, the dynamic characteristics of a model five-axis machining center structure , more in-depth to carry out the key components of the machine sliding surface dynamics parameter identification, finite element modeling and simulation of the machine and key components , and the structure of experimental modal analysis modification, etc. and structural weaknesses in research work. Are as follows: 1 ) based on vertical machining center table , built from a combination of sliding rail surface kinetic parameters of the experimental platform , and through a large number of experiments , the joint surface of the sliding rail with the equivalent parameters lubrication , positive pressure , gib pre - the basic law of the clamping force and other parameters ; 2 ) the establishment of a five-axis machining center machine and key components of the structure of the finite element simulation model gives the corresponding modal parameters of the structure , as well as machine AB double swing column deformation law ; 3 ) by means of the LMS test Lab modal analysis , experimental modal analysis of the machine tool structure and vibration cutting experiments , as well as into the machine column to the motion characteristics analysis , the weak link of the dynamic characteristics of the machine structure ; 4) for the machine tool structure dynamic characteristics of weak links , the corresponding structure improvement programs, and by means of the finite element simulation to verify the effectiveness of the program structure improvement . This work is part of the subject of the national science and technology major projects \experimental basis .

Related Dissertations

  1. Research on the Mainframe System of Powder Mixed EDM and the Craft Experiment,TG661
  2. EDM Electrode Wear Mechanism and Control Research,TG661
  3. Research on the Structure and Characteristics of Permanent Magnetic Coupling,TH139
  4. Finite Element Analysis and Structure Optimal Design for Combined Seal at Normal Temperature and Low Temperature,TH136
  5. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  6. Simplified Analysis of Semi-Rigid Steel Frames under Vertical Loading,TU391
  7. Based on Nonliner Finite Element Analysis of the Infilled Wall Frame Structure,TU323.5
  8. Research on Vector Control System of Induction Motor Based on DSP,TM346
  9. Hardware Implementation of LEO Satellite Channel Characteristic Emulation,TN927.23
  10. Design of Gyro Stabilized Pod Control System,TP273
  11. Stability Analysis of Roller Compacted Concrete Gravity Dam Based on Time-history Method,TV642.2
  12. Study on the Design and Biomechanical Behaviors of Individualized Artificial Knee Joint,R318.1
  13. Design of Testing Equipment for Electronic Products,TN06
  14. S-lay Installation Analysis for Deepwater Pipeline,TE973
  15. Finite Element Analysis and Optimization Design of a Tractor Cab,S219.02
  16. Research on Intelligent Aerial Bomb for Forest Fire Fighting,S762
  17. Multi-pin Internal Fixation of Calcaneal Fractures in Finite Element Analysis,R687.3
  18. The Analysis and Comparison of Adjacent Segment Degeneration of the Finite Element Caused by Three Posterior Lumbar Fusion Style,R687.3
  19. The Establishment and Preliminary Application of the Three-dimensional Finite Element Model of Ankle Joint,R687.3
  20. Different Bottom Structure of Dental Brackets Affect the Adhesiveness-Three Dimensional Finite-element Analysis,R783.5
  21. Airborne radar antenna pedestal rapid design systems research and development,TN959.73

CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Program control machine tools, CNC machine tools and machining
© 2012 www.DissertationTopic.Net  Mobile