基于动作捕捉系统和JACK软件的坐姿舒适性分析（英文）

坐姿舒适度是一个受多种因素影响的复杂概念。目前还没有完善的评价座椅舒适度的方法,现有的评价方法大多是基于单一分析的,缺乏对问题的多方面分析。提出了一种将实际环境中的调查方法与虚拟环境相结合的新方法。首先,利用运动分析鹰眼数字系统捕捉参与者的身体运动动作,得到人体在空间中的点位信息,然后,将运动分析EVaRT软件与西门子Jack软件进行实时连接。利用JACK软件中的TAT报表工具输出数据,并在MATLAB中使用自行开发的程序计算出不同座椅坐姿的关节角度、扭矩和肌力,并完成数据分析。在分析了所有的运动研究结果后,发现两种类型的椅子之间差异变得明显。与此同时,研究肌肉舒适度指数,探索新的坐姿舒适度评价方法。将坐姿舒适度指数法与人体数字模型相结合,可以对坐姿舒适性进行分析,可用于优化人体坐姿的舒适度。

Analysis of the sitting posture comfort based on motion capture system and JACK software

Sitting posture comfort is a complex construct influenced by several factors. There is no established assessment method which could evaluate the sitting chair comfort at present. Most of the current evaluation methods are based on single analysis,and lack multi-analysis of the problem. This paper proposed a new method which integrates investigation methods in real environment and virtual environment. Firstly,Motion Analysis Eagle Digital System was used to capture the body motion of participants,and obtain the human body each joint point in the space. Then,the Motion Analysis EVaRT software was connected with the Siemens Jack software. Using the JACK software TAT report tools to output data,the analysis of data was completed using a self-developed program in MATLAB. After analyzing all the results of motion study,a clear difference between the two types of chair became apparent. The joint angles,torques and muscle force were calculated. Meanwhile,we studied the muscle comfort index to explore new method that evaluates the sitting posture comfort index. The sitting posture comfort index method combined with the human body digital model can analyze the siting posture comfort. Also,this research can be applied to optimize comfort level of the body sitting posture.