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Development of 3D Interactive Virtual Experimantal System combining Visual and Tactile Information for Electromagnetic Field Education

视觉与触觉相结合的电磁场教育3D互动虚拟实验系统开发

基本信息

批准号：
17560271
负责人：
YAMASHITA Hideo
金额：
$ 2.37万
依托单位：
Hiroshima Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560271/
关键词：
Tactile Sensor Electromagnetic Force Electromagnetic Analysis Virtual Reality Education System 電磁場解析

项目摘要

In this research, we developed an interaction system in electromagnetic virtual space using 3D tactile sensor. The following systems and algorithms have been developed.(1)Development of an interaction system with information distributed in 3D electromagnetic virtual space by using 3D tactile sensor : At first, we developed a receiving system of electromagnetic force that is acting to a core setting in 2D virtual electromagnetic field. By moving the core in the virtual space, observers can feel the electromagnetic force acting the core. In the second step, we developed the 2D system to 3D system, and we developed an algorithm drawing stereoscopic images.(2)Development of an automatic hexahedral mesh generation method to control shape of elements : Ellipsoidal Bubbles are employed as mesh density data. By utilizing Ellipsoidal Bubbles, the mesh size can be controlled along each direction adequately, and flat elements can be generated.(3)Developments of an error evaluation scheme based on magnetic field intensity in adaptive finite element analysis : We propose a new error evaluation method based on the rotation of the intensity of magnetic filed obtained from the results of finite element method with coarser mesh. The newly proposed method has no complicated process on the interface between the different materials.

在本研究中，我们开发了一个在电磁虚拟空间中使用三维触觉传感器的交互系统。已经开发了以下系统和算法。（1）利用三维触觉传感器开发三维电磁虚拟空间中信息分布的交互系统：首先，我们开发了作用于二维虚拟电磁场中的核心设置的电磁力的接收系统。通过在虚拟空间中移动核心，观察者可以感受到作用于核心的电磁力。第二步，我们将二维系统发展为三维系统，并开发了一种绘制立体图像的算法。（2）开发了一种控制单元形状的六面体网格自动生成方法：网格密度采用椭球泡。利用椭球泡可以充分控制沿着各个方向的网格尺寸，生成平面单元。（3）基于磁场强度的自适应有限元分析误差评估方法的研究：提出了一种基于磁场强度旋转的自适应有限元分析误差评估方法。新提出的方法在不同材料之间的界面上没有复杂的过程。