![]() |
|
以作者查詢圖書館館藏 、以作者查詢臺灣博碩士 、以作者查詢全國書目 、勘誤回報 、線上人數:17 、訪客IP:3.145.93.173
姓名 趙子惟(Zi-Wei Zhao) 查詢紙本館藏 畢業系所 機械工程學系 論文名稱
(Design of a Five-Degrees of Freedom Statically Balanced Mechanism with Multi-Directional Functionality)相關論文 檔案 [Endnote RIS 格式]
[Bibtex 格式]
[相關文章]
[文章引用]
[完整記錄]
[館藏目錄]
至系統瀏覽論文 (2024-12-12以後開放)
摘要(中) 在外科手術中,內視鏡需要精準定位在醫療器材或者在外科儀器上。通常需要將它們保持在某個位置並手動對其進行準確操作。為此目的,有幾種專用於醫學應用的手臂可以商購,但是,它們依靠會導致殘餘運動和不精確度的關節鎖定功能。已經提出使用靜態平衡機制作為改進。
在目前的工作中,提出了具有五個自由度的機構的靜態平衡。此特定功能允許機制將其固定在某個位置,而不需任何鎖定系統和電動系統。所提出的機構由線性平行四邊形連桿機構和角球解耦連桿機構組成。研究它的運動學,以分析其重力位能。並且設計實施了一些基於拉伸彈簧的特定概念,以產生可精確補償重力位能的彈性位能。此種方法可以節省機械總位能,這是靜態平衡所需要的方式。
在實際上的CAD模型用於對合適的機械參數(例如質量和彈簧附接位置)進行數值識別。製造了靜態平衡機構的原型並且可以成功的展示出來。摘要(英) In some surgical tasks, such as endoscopy, the accurate positioning of medical tools or surgical instruments is required. It is often required to maintain them in certain position and punctually manipulated them manually. Several passive arms dedicated to medical application are commercially available for this purpose. However, they rely on joint locking features that cause residual motion and inaccuracy. The use of statically balanced mechanism has been proposed as an improvement.
In the present works, the static balancing of a mechanism with five degree of freedom is proposed. This specific feature allows a mechanism to hold it in a certain position without the need for any lock system or motorized system. The proposed mechanism is made of linear parallelogram linkages and angular spherical decoupled linkages. Its kinematics is studied to permit the analysis of its gravitational potential energy. Several specific mechanical concepts based on tension springs are designed and implemented to generate an elastic potential energy that accurately compensate the gravitational potential energy. This method allows the conservation of the mechanism total potential energy, which is required for the static balancing.
A realistic CAD model is used for the numerical identification of the appropriated mechanical parameters, such as the masses and the spring attachment positions. A prototype of the statically balanced mechanism is manufactured. Its static balancing testing is successfully provided.關鍵字(中) ★ 機構設計
★ 平行四連桿機構
★ 微創手術
★ 模擬
★ 靜態平衡
★ 自由度關鍵字(英) ★ Mechanism design
★ Static balancing
★ Parallelogram linkage
★ Spherical decoupled mechanism.論文目次 Table of content
Chinese Abstract ............................................................................................................................................ i
English Abstract ............................................................................................................................................ ii
Acknowledgments .......................................................................................................................................... iv
Explanation of Abbreviations....................................................................................................................... vii
1. Introduction .......................................................................................................................................... 1
1-1 Object Positioning and Holding ................................................................................................................... 1
1-2 Statically Balanced Mechanism ................................................................................................................... 2
2. Conceptual Definition and Kinematic Analysis of the Mechanism ...................................................... 7
2-1 General Mechanical Concept Definition ...................................................................................................... 7
2-2 Kinematic of the Linear Mechanism ........................................................................................................... 10
2-3 Kinematic of the Angular Mechanism ........................................................................................................ 11
3. Multi-Directional Static Balancing of the Linear Mechanism .............................................................15
3-1 Static Balancing Theory ............................................................................................................................. 15
3-2 Multi-Directional Parallelogram Mechanism Static Balancing................................................................. 16
3-2-1 Horizontal Parallelogram Mechanism .................................................................................................... 17
3-2-2 Vertical Parallelogram Mechanism ........................................................................................................ 18
3-3 Conceptual Uniformization of Parallelogram Static Balancing ................................................................ 20
3-4 Results ....................................................................................................................................................... 22
vi
4. Static Balancing of the Orientation Mechanism ..................................................................................24
4-1 Evolution of the Gravitational Potential Energy ........................................................................................ 24
4-2 Mechanical Concept for the Orientation Mechanism Static Balancing ..................................................... 27
4-3 Evolution of the Elastic Potential Energy .................................................................................................. 30
4-4 Results ....................................................................................................................................................... 32
5. Mechanical Design of the Statically Balanced Mechanism ..................................................................35
5-1 Computer Aided Design and Parameters Identification............................................................................. 35
5-2 Simulations and Prototype Testing ............................................................................................................. 38
6. Conclusion ...........................................................................................................................................45
Reference ......................................................................................................................................................46參考文獻 Reference
[1] Kim, S.-J., Lee, S.-C., “Technical and Instrumental Prerequisites for Single-Port Laparoscopic Solo Surgery: State of Art,” World Journal of Gastoenterology, Vol. 21(15), pp. 4440-4446, 2015.
[2] Herve, J.M., “Design of Spring Mechanisms for Balancing the Weight of Robots,” Proceedings of the 6th CISM-IFToMM symposium on Theory and Practice of Robots and Manipulators, pp. 564-567 Kracow, Poland, 1986.
[3] Ulrich, N., Kumar, V., “Passive Mechanical Gravity Compensation for Robot Manipulator,” Proceeding of the IEEE International Conference on Robotics and Automation, pp. 1536-1541, Sacramento, USA, 1991.
[4] Huissoon, J., Wang, D., “On the Design of a Direct Drive 5-Bar-Linkage Manipulator,” Robotica, Vol. 9(4), pp. 441-446, 1991.
[5] Kolarski, M., Vukabratovic, M., Borovac, B., “Dynamic Analysis of Balanced Robot Mechanisms,” Mechanism and Machine Theory, Vol. 29, Issue 3, pp. 427-454, 1994.
[6] Rahman, T., Ramanathan, R., Seliktar, R., Harwin, W., “A Simple Technique to Passively Gravity-Balance Articulated Mechanisms,” ASME Journal of Mechanical Design, Vol. 117, Issue 4, pp. 655-658, 1995.
[7] Agrawal, A., Agrawal, A.K., “Design of Gravity Balancing Leg Orthosis Using Non-zero Free Length Springs,” Mechanism and Machine Theory, Vol. 40, Issue 6, pp. 693-709, 2005.
[8] Banala, S.K., Agrawa, S.K., Fattah, A., Krishnamoorthy, V., Hsu, W.-L., Scholz, J., Rudolh, K., “Gravity-Balancing Leg Orthosis and Its Performance Evaluation,” IEEE Transaction on Robotics, Vol. 22, No. 6, pp. 1228-1239, 2006.
47
[9] Kuo, C.-H, Lai, S.-J., “Design of a Novel Statically Balanced Mechanism for Laparoscope Holders with Decoupled Positioning and Orientating Manipulation,” ASME Journal of Mechanisms and Robotics, Vol. 8, Issue 1, pp. 015001, 2016.
[10] Cho, C.-H, Lee, W., “Design of a Static Balancer with Equivalent Mapping,” Mechanism and Machine Theory, Vol. 101, pp. 36-49, 2016.
[11] Chen, Y., Liu, Y., Li, C, Liu, G., Zhu, Y., Zhao, J., Cai, H., “Gravity Balance Mechanism for a Spatial Robotic Manipulator,” Journal of Mechanical Science and Technology, Vol. 30(2), pp. 865-869, 2016.
[12] Gosselin, C. M., Wang, J., “On the Design of Gravity-Compensated Six-Degree-of-Freedom Parallel Mechanisms,” Proceeding of IEEE International Conference of Robotics and Automation, Vol. 3, pp. 2287–2294, Leuven, Belgium, 1998.
[13] Wang, J., Gosselin, C. M., “Static Balancing of Spatial Four-Degree-of-Freedom Parallel Mechanisms,” Mechanism and Machine Theory, Vol. 35, pp. 563-592, 2000.
[14] Russo, A., Sinatra, R., Xi, F., “Static Balancing of Parallel Robots,” Mechanism and Machine Theory, Vol. 40, pp. 191-202, 2005.
[15] Lessard, S., Bigras, P., Bonev, I.A., “A New Medical Parallel Robot and its Static Balancing Optimization,” ASME Journal of Medical Devices, Vol. 1, Issue 4, pp. 272-278, 2007.
[16] Lin, P.-Y., Shieh, W.-B., Chen, D.-Z., “A Stiffness Matrix Approach for the Design of Statically Balanced Planar Articulated Manipulators,” Mechanism and Machine Theory, Vol. 45, pp. 1877-1891, 2010.
48
[17] Lin, P.-Y., Shieh, W.-B., Chen, D.-Z., “Design of Statically Balanced Planar Articulated Manipulators with Spring Suspension,” IEEE Transactions on Robotics, Vol. 28, No. 1, pp. 12-21, 2012.
[18] Kuo, C-H., Lai, S.-J, “Design of a Novel Statically Balanced Mechanism for Laparoscope Holders With Decoupled Positioning and Orientating Manipulation,” ASME Journal of Mechanisms and Robotics, Vol. 28, pp. 015001, 2016.
[19] Kuo, C.-H., Dai, J. S., and Dasgupta, P., “Kinematic Design Considerations for Minimally Invasive Surgical Robots: An Overview,” The International Journal of Medical Robotics and Computer Assisted Surgery, Vol. 8, No. 2, pp. 127-145, 2012.
[20] Essomba, T., Laribi, M.A., Nouaille, L., Zeghloul, S., Poisson, G., Vieyres, P., “A specific performances comparative study of two spherical robots for tele-echography application,” Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 228(8), pp. 3419–3429, 2014.
[21] Essomba, T., Nguyen Vu, L., “Kinematic Analysis of a New Five-Bar Spherical Decoupled Mechanism with Two-Degrees of Freedom Remote Center of Motion,” Mechanism and Machine Theory, Vol. 119, pp. 184-197, 2018.
[22] Rahman, T., Ramanathan, R., Seliktar, R., Harwin, W., “A Simple Technique to Passively Gravity-Balance Articulated Mechanisms,” ASME Journal of Mechanical Design, Vol. 117, pp. 655-658, 1995.指導教授 伊泰龍(Terence Essomba) 審核日期 2019-12-13 推文 plurk
funp
live
udn
HD
myshare
netvibes
friend
youpush
delicious
baidu
網路書籤 Google bookmarks
del.icio.us
hemidemi
myshare