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| 1 | Hybrid force control of astronaut rehabilitative training robot under active loading mode显示文摘In order to mitigate the effects of space adaptation syndrome(SAS) and improve the training efficiency of the astronauts, a novel astronaut rehabilitative training robot(ART) was proposed. ART can help the astronauts to carry out the bench press training in the microgravity environment. Firstly, a dynamic model of cable driven unit(CDU) was established whose accuracy was verified through the model identification. Secondly, to improve the accuracy and the speed of the active loading, an active loading hybrid force controller was proposed on the basis of the dynamic model of the CDU. Finally, the actual effect of the hybrid force controller was tested by simulations and experiments. The results suggest that the hybrid force controller can significantly improve the precision and the dynamic performance of the active loading with the maximum phase lag of the active loading being 9° and the maximum amplitude error being 2% at the frequency range of 10 Hz. The controller can meet the design requirements. | 邹宇鹏 张立勋 马慧子 秦涛 | 2014 | Journal of Central South University2014，21，11： | 3 |
| 2 | 紧耦合多直升机协调吊运系统逆运动学分析与求解显示文摘针对紧耦合多直升机协调吊运系统的逆运动学进行了分析,通过描述系统的结构模型,利用闭环矢量和牛顿-欧拉方程建立了系统的运动学模型和动力学模型;随后对系统的逆运动学进行了分析,将其分为定柔索长度和变柔索长度两种情况进行研究;最后在给定被吊运物运动期望位姿的情况下,对两种情况分别进行了数值计算,并通过ADAMS和MATLAB软件搭建了实验平台,进行了实例仿真分析。结果表明,建立的系统逆运动学模型是合理的,可以实时地求得各直升机的运动以及各柔索的受力情况。本文为优化拉力分布和研究系统控制算法奠定了基础。 | 王砚麟 赵志刚 马延 石广田 | 2017 | 应用力学学报2017，34，4： | 2 |
| 3 | Intelligent monitoring-based safety system of massage robot显示文摘As an important attribute of robots, safety is involved in each link of the full life cycle of robots, including the design, manufacturing, operation and maintenance. The present study on robot safety is a systematic project. Traditionally, robot safety is defined as follows: robots should not collide with humans, or robots should not harm humans when they collide. Based on this definition of robot safety, researchers have proposed ex ante and ex post safety standards and safety strategies and used the risk index and risk level as the evaluation indexes for safety methods. A massage robot realizes its massage therapy function through applying a rhythmic force on the massage object. Therefore, the traditional definition of safety, safety strategies, and safety realization methods cannot satisfy the function and safety requirements of massage robots. Based on the descriptions of the environment of massage robots and the tasks of massage robots, the present study analyzes the safety requirements of massage robots; analyzes the potential safety dangers of massage robots using the fault tree tool; proposes an error monitoring-based intelligent safety system for massage robots through monitoring and evaluating potential safety danger states, as well as decision making based on potential safety danger states; and verifies the feasibility of the intelligent safety system through an experiment. | 胡宁 李长胜 王利峰 胡磊 徐晓军 邹雲鹏 胡玥 沈晨 | 2016 | Journal of Central South University2016，23，10： | 0 |
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