Spelling suggestions: "subject:"block anda match makingmachine"" "subject:"block anda match packagingmachinery""
1 |
Modeling and experimental validation of spiral microsprings.January 2008 (has links)
Ko, Pui Hang. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 86-90). / Abstracts in English and Chinese. / Chapter 1. --- Introduction --- p.1 / Chapter 1.1 --- Micro bearing in precision engineering --- p.1 / Chapter 1.2 --- Micro spiral spring --- p.5 / Chapter 1.3 --- Outline of the thesis --- p.9 / Chapter 2. --- Mainspring Segment with Carbon Nanotube Coating --- p.10 / Chapter 2.1 --- Introduction --- p.10 / Chapter 2.2 --- Coating on the mainspring --- p.12 / Chapter 2.2.1 --- Experimental Setup for Finding the Young's Modulus --- p.12 / Chapter 2.2.2 --- Elastic Modulus of the mainspring without coating --- p.15 / Chapter 2.2.3 --- Elastic Modulus of the mainspring with coating --- p.18 / Chapter 2.2.4 --- Thickness of the coating --- p.19 / Chapter 2.3 --- Elastic deformation of mainspring --- p.22 / Chapter 2.3.1 --- Mathematical Model Derivation --- p.24 / Chapter 2.3.2 --- Data Analysis --- p.35 / Chapter 2.4 --- Summary --- p.38 / Chapter 3. --- FEA of the Spiral Spring Structure --- p.53 / Chapter 3.1 --- Introduction --- p.53 / Chapter 3.2 --- Model Formation --- p.55 / Chapter 3.2.1 --- Preprocess --- p.56 / Chapter 3.2.2 --- Solver --- p.60 / Chapter 3.2.3 --- Post-process --- p.71 / Chapter 3.3 --- A Comparison between Simulation and Experiment Results --- p.74 / Chapter 3.3.1 --- Experimental setup --- p.74 / Chapter 3.3.2 --- Results Analysis --- p.77 / Chapter 3.4 --- Summary --- p.78 / Chapter 4. --- Conclusions and Future Work --- p.81 / Chapter 4.1 --- Summary of micro spiral spring --- p.81 / Chapter 4.2 --- Contributions --- p.83 / Chapter 4.3 --- Future work --- p.84 / Bibliography --- p.86 / Appendix --- p.91 / Chapter A1 --- "Specification of CSM Instrument, Swiss, Variocouple" --- p.91 / Chapter A2 --- Matlab® program of the spiral spring segment FEA --- p.91 / Chapter A3 --- "The paper: ""Nano-Bearing: A New Type of Air Bearing with Flexure Structure""" --- p.99
|
2 |
Geometry-based simulation of mechanical movements and virtual library.January 2008 (has links)
Tam, Lam Chi. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 85-88). / Abstracts in English and Chinese. / Chapter 1. --- Introduction --- p.1 / Chapter 1.1. --- Background --- p.1 / Chapter 1.2. --- Objectives --- p.5 / Chapter 2. --- Literature Survey --- p.7 / Chapter 2.1. --- Existing Virtual Libraries --- p.7 / Chapter 2.2. --- Challenges --- p.13 / Chapter 3. --- Virtual Library of Mechanical Timepieces --- p.15 / Chapter 3.1. --- Structure of the Virtual Library --- p.16 / Chapter 3.2. --- Mechanical Clock Escapements --- p.19 / Chapter 3.2.1. --- Graham Escapement --- p.19 / Chapter 3.3. --- Mechanical Watch Escapements --- p.21 / Chapter 3.3.1. --- English Lever Escapement --- p.21 / Chapter 3.3.2. --- Swiss Lever Escapement --- p.24 / Chapter 3.3.3. --- Daniels Co-Axial Double-Wheel Escapement --- p.26 / Chapter 3.3.4. --- Spring Detent Escapement --- p.31 / Chapter 3.3.5. --- Cylinder Escapement --- p.35 / Chapter 3.3.6. --- Verge Escapement --- p.41 / Chapter 3.4. --- Accessories --- p.46 / Chapter 3.4.1. --- Automatic Winding System --- p.46 / Chapter 3.4.2. --- Moon Phase Mechanism --- p.65 / Chapter 3.5. --- Chapter Summary --- p.71 / Chapter 4. --- Implementations --- p.73 / Chapter 4.1. --- CAD Modeling of the Escapement Structure --- p.73 / Chapter 4.2. --- Website Design --- p.78 / Chapter 4.3. --- An Application --- p.79 / Chapter 5. --- Conclusions --- p.82 / References --- p.85 / Appendix A --- p.89 / Appendix B --- p.101
|
3 |
Multibody dynamics based simulation studies of escapement mechanisms in mechanical watch movement.January 2008 (has links)
Fu, Kin Chung Denny. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 119-123). / Abstracts in English and Chinese. / Abstract --- p.i / 摘要 --- p.iii / Acknowledgements --- p.iv / Table of Contents --- p.v / List of Figures --- p.viii / List of Tables --- p.xi / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Objective --- p.1 / Chapter 1.2 --- Fundamental knowledge of multibody dynamics --- p.2 / Chapter 1.3 --- Escapement mechanisms --- p.5 / Chapter 1.3.1 --- Time keeping accuracy and stability factors --- p.7 / Chapter 1.3.2 --- Estimations of moment of inertia --- p.9 / Chapter 1.3.3 --- Other simulations and analyses --- p.15 / Chapter 1.4 --- Thesis outlines --- p.15 / Chapter 1.5 --- Chapter summary --- p.17 / Chapter Chapter 2 --- Multibody Dynamics --- p.18 / Chapter 2.1 --- The unilateral corner law of impact --- p.18 / Chapter 2.2 --- The Coulomb's friction --- p.19 / Chapter 2.3 --- "Slip, stick, and slip reversal phenomena" --- p.20 / Chapter 2.4 --- The coefficients of restitution --- p.20 / Chapter 2.5 --- Ways of formulating multiple contacts --- p.22 / Chapter 2.6 --- Integration procedure --- p.22 / Chapter 2.7 --- The P. Pfeiffer and Ch. Glocker's approach --- p.23 / Chapter 2.7.1 --- Kinematics calculation --- p.23 / Chapter 2.7.2 --- Configuration index --- p.26 / Chapter 2.7.3 --- Motion without contact --- p.27 / Chapter 2.7.4 --- Motion for detachment and slip-stick transition and LCP formulation --- p.27 / Chapter 2.7.5 --- Motion for impact and LCP formulation --- p.37 / Chapter 2.8 --- Solving LCP --- p.50 / Chapter 2.9 --- Chapter summary --- p.52 / Chapter Chapter 3 --- Development of the Simulation Tool --- p.54 / Chapter 3.1 --- Kinematics calculation --- p.54 / Chapter 3.1.1 --- Geometric definitions --- p.55 / Chapter 3.1.2 --- Line-to-line contact --- p.59 / Chapter 3.1.3 --- Arc-to-line contact --- p.62 / Chapter 3.1.4 --- Kinematics calculation procedures --- p.67 / Chapter 3.2 --- Obtaining the solutions --- p.72 / Chapter 3.3 --- Revised numerical treatment for LCP solving --- p.73 / Chapter 3.4 --- Integration procedure of simulation --- p.74 / Chapter 3.5 --- Verification example --- p.76 / Chapter 3.5.1 --- Classical mechanics approach --- p.76 / Chapter 3.5.2 --- Pre-calculation before application --- p.79 / Chapter 3.5.3 --- Simulation results --- p.81 / Chapter 3.6 --- Chapter summary --- p.83 / Chapter Chapter 4 --- Application to Swiss Lever Escapement --- p.84 / Chapter 4.1 --- Working principle of Swiss lever escapement --- p.84 / Chapter 4.2 --- Simulation of Swiss lever escapement --- p.87 / Chapter 4.2.1 --- Pre-calculation of kinematics --- p.88 / Chapter 4.2.2 --- Simulation results --- p.89 / Chapter 4.3 --- More simulations --- p.102 / Chapter 4.3.1 --- Theoretical optimal peak amplitudes --- p.102 / Chapter 4.3.2 --- Simulation of coaxial escapement --- p.103 / Chapter 4.3.3 --- Simulations with different simulation parameters --- p.109 / Chapter 4.3.4 --- Relation of input complexity and computational time --- p.111 / Chapter 4.4 --- Chapter summary --- p.113 / Chapter Chapter 5 --- Conclusions and Future works --- p.114 / Chapter 5.1 --- Conclusions --- p.114 / Chapter 5.2 --- Future works --- p.117 / Bibliography --- p.119
|
4 |
Design and implement a micro assembly machine for mechanical watch movements.January 2009 (has links)
Yang, Fan. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2009. / Includes bibliographical references (leaves 73-77). / Abstracts in English and Chinese. / Abstract --- p.I / 摘要 --- p.III / Table of Contents --- p.V / List of Figures --- p.i / List of Tables --- p.A / Chapter 1. --- Introduction --- p.1 / Chapter 1.1. --- Literature Review --- p.1 / Chapter 1.2. --- Project Background --- p.10 / Chapter 1.3. --- Objectives --- p.14 / Chapter 2. --- Design of the micro assembly machine --- p.16 / Chapter 2.1. --- Aspects that need to be met --- p.16 / Chapter 2.2. --- Hardware of the micro assembly machine --- p.17 / Chapter 2.2.1. --- The vision system --- p.18 / Chapter 2.2.2. --- The control system --- p.19 / Chapter 2.2.3. --- The Actuating System --- p.21 / Chapter 2.2.3.1. --- The gripper --- p.22 / Chapter 2.2.3.2. --- The three axes --- p.28 / Chapter 2.2.3.3. --- The workbench --- p.31 / Chapter 2.2.4. --- The complete structure of the micro assembly machine --- p.32 / Chapter 2.3. --- The main features of the micro assembly machine --- p.34 / Chapter 3. --- Implementation --- p.35 / Chapter 3.1. --- Vision system --- p.35 / Chapter 3.2. --- Setting up the vision system --- p.36 / Chapter 3.3. --- Efficiency and form of the transferred data --- p.38 / Chapter 3.4. --- Control system --- p.39 / Chapter 3.4.1. --- Structure of the control system --- p.40 / Chapter 3.4.2. --- System control process --- p.44 / Chapter 3.4.3. --- The GUI --- p.45 / Chapter 3.4.4. --- Data processing --- p.48 / Chapter 3.5. --- Cooperation between the vision system and the control system --- p.49 / Chapter 4. --- Experimental results --- p.51 / Chapter 4.1 --- Accuracy in the x and y directions --- p.51 / Chapter 4.2 --- Effect of the vision system on accuracy --- p.57 / Chapter 4.3 --- Depth of the assembled ruby bearings --- p.62 / Chapter 4.4 --- Gradient of the rubies --- p.65 / Chapter 4.5 --- Analysis of the experimental data --- p.68 / Chapter 5 --- Conclusion and Future Work --- p.70 / References --- p.73
|
Page generated in 0.0831 seconds