期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
测量并分析上楼梯过程中下肢关节角变化 被引量:13
1
作者 唐刚 魏高峰 +4 位作者 周海 刘石磊 季文婷 王冬梅 王成焘 《医用生物力学》 EI CAS CSCD 2011年第5期460-464,共5页
目的获取上楼梯运动过程中国人下肢关节活动范围的统计学数据,从而为大屈曲度人工关节设计提供依据。方法设计常规楼梯实验装置,利用运动捕捉系统(Optotrak Certus,NDI)和三维测力台(AMTI,Bertec),建立系统地测量上楼梯过程中下肢运动... 目的获取上楼梯运动过程中国人下肢关节活动范围的统计学数据,从而为大屈曲度人工关节设计提供依据。方法设计常规楼梯实验装置,利用运动捕捉系统(Optotrak Certus,NDI)和三维测力台(AMTI,Bertec),建立系统地测量上楼梯过程中下肢运动的方法,并应用此方法对40例样本进行测量。结果计算获得了40例样本在上楼梯过程中,髋关节、膝关节及踝关节在1个运动周期内沿各方向上关节角的变化规律及活动范围,其中髋、膝、踝关节在矢状面上活动范围分别是-1.6°~66.7°,0°~91.4°,-20.8°~22.4°。结论上楼梯运动过程中,髋、膝、踝关节在矢状面上活动度最大,且髋关节和膝关节屈曲度最大。与水平路面上正常行走和慢跑运动中关节运动范围比较,上楼梯运动中,髋关节和膝关节在矢状面上运动范围均较大。 展开更多
关键词 下肢 关节角 运动学 楼梯 运动范围
下载PDF
Three-dimensional visualization interactive system for digital twin workshop 被引量:7
2
作者 Zhang Qinglei Yang Zhiwei +2 位作者 Duan Jianguo Liu Zhen Qin Jiyun 《Journal of Southeast University(English Edition)》 EI CAS 2021年第2期137-152,共16页
To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of th... To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of the 3D visualization interactive system for digital twin workshops is proposed.As the traditional 5D digital twin model ignores the importance of human-computer interaction,a new dimension of the user terminal was added.A hierarchical real-time data-driven mapping model for the workshop production process is then proposed.Moreover,a real-time data acquisition method for the industrial Internet of things is proposed based on OPC UA(object linking and embedding for process control unified architecture).Based on the 6D model of the system,the process of creating a 3D visualization virtual environment based on virtual reality is introduced,in addition to a data-driven process based on the data management cloud platform.Finally,the 6D model of the system was confirmed using the blade rotor test workshop as the object,and a 3D visualization interactive system is developed.The results show that the system is more transparent,real-time,data-driven and more efficient,as well as promotes the coordination and integration of human-physical-virtual,which has practical significance for developing digital twin workshops. 展开更多
关键词 digital twin workshop three-dimensional visualization human-computer interaction data driven OPC UA(object linking and embedding for process control unified architecture)
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部