Volume 31 Issue 07
Jul.  2005
Turn off MathJax
Article Contents
Wang Yuhui, Zhang Yuru, Wang Dangxiaoet al. Haptic rendering algorithm based on discrete energy optimization method of preparation of human tooth[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(07): 785-788. (in Chinese)
Citation: Wang Yuhui, Zhang Yuru, Wang Dangxiaoet al. Haptic rendering algorithm based on discrete energy optimization method of preparation of human tooth[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(07): 785-788. (in Chinese)

Haptic rendering algorithm based on discrete energy optimization method of preparation of human tooth

  • Received Date: 30 Oct 2004
  • Publish Date: 31 Jul 2005
  • Fidelity and stability are two keys of performance of virtual reality haptic interaction system. In virtual reality haptic interaction system of dental preparation, force acting on dentist who receives training is a key factor of training effect. Volumetric model of human tooth was constructed based on laser scanning data and tetrahedral division of tooth model was implemented. A method to calculate cutting force was proposed by combining empirical formula and experimental data. Optimum haptic rendering algorithm was studied to guaranteeing fidelity and stability of that haptic system. In order to solve the contradiction between fidelity and stability, haptic rendering algorithm based on discrete energy optimization algorithm was proposed. That algorithm processed force series with constant time difference. As a result, optimized cutting force signals between fidelity and stability were obtained. Experimental results show that this algorithm restrains vibration in high frequency of haptic device. Performances of human machine interactive haptic dental training system are improved.

     

  • loading
  • [1] Zilles C B,Salisbury J K. A constraint-based god-object method for haptic display .In:Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, 'Human Robot Interaction and Cooperative Robots' . Pittsburgh,PA,1995.146~151 [2] Wang D X, Zhang Y R, Wang Y H, et al. Development of dental training system with haptic display . In:2003 IEEE International Workshop on Robot and Human Interactive Communication . California,2003. 159~164 [3] 王党校,张玉茹,王玉慧,等.实时力觉交互的虚拟力计算及渲染方法[J] 统仿真学报,2004,16(7):1494~1498 Wang Dangxiao, Zhang Yuru, Wang Yuhui, et al.Force computation and rendering method for real-time force display[J] Journal of System Simulation,2004,16(7):1494~1498(in Chinese) [4] 王党校,张玉茹,王玉慧,等. 约束切换与阻抗显示力反馈设备的稳定性研究[J] 器人,2004,26(2):97~101 Wang Dangxiao, Zhang Yuru, Wang Yuhui, et al. Constraint switching and stability issues in impedance display force feedback device[J] obot, 2004,26(2):97~101(in Chinese) [5] Kechagias L, Bors A G, Pitas I. Virtual drilling sculpturing in 3-D volumes . In:Proceedings of the 23rd Annual Embs International Conference of the IEEE .Istanbul, 2001.25~28 [6] 王党校. 牙科手术模拟的力觉交互仿真方法研究 .北京:北京航空航天大学机械工程与自动化学院,2004 Wang Dangxiao. Haptic interaction technology for dental surgery simulation .Beijing:School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics,2004(in Chinese) [7] 张幼桢.金属切削原理及刀具[M] 京:国防工业出版社, 1990. 163~180 Zhang Youzhen. Metallic cutting theory and tool[M] eijing:National Defence Industry Press, 1990. 163~180(in Chinese) [8] 朱心雄.自由曲线曲面造型技术[M] 京:科学出版社,2000. 364~366 Zhu Xinxiong. Modeling technique of freeform curve and surface[M] Beijing:Science Press, 2000. 364~366(in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(3210) PDF downloads(968) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return