Development of three dimensional CAD manikin for the estimation of physical and mental stresses in manual handling

对三维CAD人体模型的开发进行了基础性研究，用于在计算机显示器上设计的产品的虚拟手动操作中，手的形状、运动和感觉的可视化，以及身体和精神应力的估计。本研究为CAD人体模型的开发提供了与手的特征相关的基础数据（人体测量学、形态测量学、握力、运动、感觉和认知）。日本成年男性和女性的手。2）利用三维运动分析系统，对日本成年人在圆柱形抓握时的握力及其矢量、手的运动和关节角进行了分析。这些数据将被应用于体力负荷和效率的估计，在手动处理。3）视觉和触觉的对象形式之间的关系进行了研究。对这两种模式进行了相关性分析和区分，并将其应用于CAD人体模型的触觉估计和可视化。4）研究了基于手的认知空间坐标系。5）尝试在计算机显示器上建立关节基本虚拟模型。探讨了手的CAD模型的可能性和发展趋势。

A fundamental study was tried on the development of three dimensional CAD manikin for the visualizations of shape, motion and sensation of the hand, and for the estimation of physical and mental stresses, in virtual manual handling with products designed on the computer display. In this study, basic data related with the hand characteristics (anthropometry, morphometry, grip force, motion, sensation and cognition) were wrapped up for the development of CAD manikin.1) Detail anthropometric data(length, depth, width and proportion, etc.) were obtained of Japanese adult male and female hands. And, the regression formula were conducted in order to obtain the morphometric data of manikin hand from ISO/JIS fundamental anthropometric data base.2) Power grip force and its vector elements, motion and joint angles of hand in Japanese adults were analyzed in the gripping of cylindrical form with a three dimensional motion analysis system. These data will be applied for the estimations of physical load and efficiency in manual handling.3) The relationships between visual sensations and tactile ones of object form were investigated. The correlation and differentiation between these two modalities were conducted, and these results will be applied for the estimation and visualization of tactile sensation on the CAD manikin.4) The coordinate system of cognitive space based on the hand was investigated. And this coordinate system was found our to be variable in different positions and directions of hand.5) The construction of basic virtual model of joint was tried on the computer display. And the possibility and trend in the CAD manikin of the hand were discussed.