CAJ | 학술논문

为了帮助宇航员进行对抗失重锻炼，提出一种基于弹簧机构的新型抗阻力训练器。该抗阻力训练器利用弹簧的弹性势能模拟人体在地面活动时所受的重力负载，其核心是一套无动力的被动弹簧机构。通过分析系统的静态力平衡关系和系统势能，提出该抗阻力训练器的设定条件，从而推导弹簧刚度系数的计算依据。为了评价该抗阻力训练器的动态特性，建立该抗阻力训练器与宇航员人体的动力学仿真模型，并进行仿真研究。试验结果表明：从人体骨骼所受负载和骨骼肌收缩运动的角度来看，该新型抗阻力训练器施加于宇航员人体的负载能够达到甚至超过在地面活动时所受的重力负载，可用于宇航员的对抗失重锻炼。研究结果为该抗阻力训练器的机构优化和样机研制提供理论基础。
위료방조우항원진행대항실중단련，제출일충기우탄황궤구적신형항조력훈련기。해항조력훈련기이용탄황적탄성세능모의인체재지면활동시소수적중력부재，기핵심시일투무동력적피동탄황궤구。통과분석계통적정태력평형관계화계통세능，제출해항조력훈련기적설정조건，종이추도탄황강도계수적계산의거。위료평개해항조력훈련기적동태특성，건립해항조력훈련기여우항원인체적동역학방진모형，병진행방진연구。시험결과표명：종인체골격소수부재화골격기수축운동적각도래간，해신형항조력훈련기시가우우항원인체적부재능구체도심지초과재지면활동시소수적중력부재，가용우우항원적대항실중단련。연구결과위해항조력훈련기적궤구우화화양궤연제제공이론기출。
A novel resistive exercise device designed based on spring mechanism is presented to help astronauts exercise in weightless environment. The core structure of the resistive exercise device is a completely passive spring mechanism, of which the elastic potential energy is designed to simulate the forces acting on the human body by the Earth gravity. Based on static force equilibrium, conditions for gravity force simulation of the device are proposed, and also the spring parameters are derived. The resistive exercise device and astronauts are modeled, and its performance is studied. Simulation experimental results demonstrate the feasibility of the proposed gravity force simulator, and the force acting on human body has a greater range of adjustment, even can be more than the normal Earth gravity. The greater loading of the resistive exercise device can be more suitable for countermeasure exercise of astronauts.