Abstract
For the purpose of solving the problem of astronaut training in weightlessness environment, this article proposes a multimodal astronaut training robot to enable astronauts to perform running, bench press and deep squat training in the weightless environment, so as to help them mitigate the adverse effects brought by the space adaptation syndrome. Taking the modularized wire driving unit as the research object, the dynamic model of the passive force servo system was established; and the passive force control strategy was designed. The experimental results show that the system is of good stability, high steady-state accuracy, and excellent dynamic quality after correction. When the given signal frequency is 10 Hz, the system phase lag is about 9°, and the loading error is about 5%. The passive force servo control strategy can effectively reduce the surplus force. When the speed disturbance frequency of carrying unit is within 3 Hz, the elimination rate of the surplus force can reach 90%.
Highlights
The development of the manned space engineering has promoted human exploration to the universe and research on the physiological functions of human body
87.17 this article proposed a multimodal astronaut training robot (MAT) to enable astronauts to perform multiform sports trainings in the weightless environment, so as to help them mitigate the adverse effects of space adaptation syndrome (SAS)
The experimental results show that the corrected system has good stability, high steadystate accuracy, and excellent dynamic quality
Summary
The development of the manned space engineering has promoted human exploration to the universe and research on the physiological functions of human body. The results of aerospace medicine research indicate that weightlessness will cause astronauts to develop space adaptation syndrome (SAS) in the long-term course of manned spaceflight. The adaptive changes in human physiology caused by weightlessness are similar to the physical conditions of elderly people or the symptoms of long-term bedridden patients.[1,2,3] If the astronauts are in a weightless environment for a long period, it may cause adaptive changes and pathological changes in the skeletal system, the muscle system, and the cardiovascular system of the human body.[4,5,6] it is of great significance to overcome the influence of SAS during the spaceflight process to ensure the safety of astronauts and to improve the working capacity of the astronauts outside the shuttles.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
