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Virtual Human Who Can Evaluate the Comfortability in Using a Chair and Others

可以评估使用椅子和其他物品的舒适度的虚拟人

基本信息

批准号：
10835024
负责人：
MAEKAWA Yoshinori
金额：
$ 2.18万
依托单位：
Osaka Sangyo University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10835024/
关键词：
Virtual Human Evaluation of Feeling Deformation Comfortability Pain Seating Human Body Hyperelastic 臀部形状変形

项目摘要

The objective of this research is the development of virtual human who can evaluate comfortability or pain level in using of virtual product : chair, bag, bed, and so on.Homogeneous hyperelastic (Mooney model) is used as a model of human body. Then, the deformation of human body, when containing with some object, is simulated by using of FEM. For obtaining the values of characteristics at each of human body, Asker CィイD22ィエD2 Type hardness tester is used. Hardness is related to the Mooney constant as the result of the FEM simulation for the body deformation.As the result of this simulation, train values and load distribution of the contact surface are obtained. From the experiment, the database of following relationship are made : Strain values correspond to pain level, and patterns of load distribution on the contact surface relate to comfortability.As an example, the comfortability in using of chair is actually simulated. The pain level in using of bags by forehead is also simulated ad another example. In the case of the trial for the using of chair, deformation of buttocks was checked between simulation result and experiment result, and there was a good coincidence confirmed.Our virtual human can be applied to the simulation of nursing care robot that should treat patients with appropriate conditions.

本研究的目的是开发能够评估虚拟产品（椅子、包、床等）使用舒适度或疼痛程度的虚拟人。采用均质超弹性（Mooney模型）作为人体模型。在此基础上，利用有限元法模拟了人体在与物体接触时的变形。为了获得人体各部位的特性值，使用Asker C φ 22 φ D2型硬度计。在有限元模拟中，硬度与物体变形的门尼常数有关。通过仿真得到了接触面的列车值和载荷分布。通过实验，建立了以下关系数据库：应变值对应疼痛程度，接触面载荷分布模式对应舒适度。作为实例，实际模拟了椅子的使用舒适性。通过另一个例子，模拟了前额使用包时的疼痛程度。以椅子使用试验为例，对比了模拟结果与实验结果的臀部变形情况，证实了很好的吻合。我们的虚拟人可以应用到护理机器人的模拟中，机器人应该对有适当条件的病人进行治疗。