文章摘要
崔桐,宋爱国,王爱民,张小瑞,陆熊.具有简单孔洞结构柔性体的力/触觉框架模型[J].高技术通讯(中文),2010,20(2):185~190
具有简单孔洞结构柔性体的力/触觉框架模型
A frame skeleton model for deformable objects with simple holes
  
DOI:
中文关键词: 框架结构, 力/变形模型, 力触觉再现, 力反馈
英文关键词: frame skeleton, force/deformation model, haptic rendering, force feedback
基金项目:863计划(2006AA01Z329, 2006AA04Z246),国家自然科学基金(60775057,60675047)和江苏省研究生科技创新计划(CX07B075Z)资助项目
作者单位
崔桐 东南大学仪器科学与工程学院;中国电子科技集团公司第二十八研究所 
宋爱国 东南大学仪器科学与工程学院 
王爱民 东南大学仪器科学与工程学院 
张小瑞 东南大学仪器科学与工程学院 
陆熊 东南大学仪器科学与工程学院 
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中文摘要:
      针对具有简单孔洞的柔性体提出了一种基于框架结构的力/触觉变形模型。此模型以外力接触端为公共端,根据内部孔的位置和形状构建框架。整体框架由一个或多个钢架组成,每根钢架可为单杆件或多杆件结构。当外力作用时,运用虚功原理和Bernoulli Euler定理求得钢架节点和虚拟固定端的变形位移,从而得到框架的变形,通过框架变形插值求解柔性体全局变形。实验结果表明,该模型方法简单,实时性好,在具体的虚拟建模力反馈工作中可操作性强。
英文摘要:
      This paper introduces a frame skeleton model for deformable objects with simple holes. The model uses the rigid jointed frame to construct the skeleton with a common end as the contact point. Anchor points are distributed based on the geometry characteristics of the deformable object in the inner or outer surface as the rigid joints or fixed ends of the frames. And the anchor points are linked with each other based on their positions and the shape of the holes. The deflections of the anchor points can be computed using the virtual work principle and the Bernoulli Euler bending beam theory. And the deflections can be used to calculate the global deformation of the elastic object by the linear interpolation method. All the simulations can be performed in a combined update rate, and the experiments on several examples prove the model's advantages of simplicity and real time, easy operation.
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