Conceptual Study Of A Passive Exoskeleton System For Reduced Gravity Locomotion Training For Astronaut

The rapid development of the world of manned space flight produced a diverse and variousproject demand. The problems which exist in the various space missions also become more and morecomplex and challenging. It put forward higher requirements on the technology in the the mannedspace flight. And alien planet landing operation is one of the hardest manned Aerospace engineeringproject. In order to improve the ability of astronauts on the moon and Mars to move in low gravityplanet surface and operation, low gravity environment locomotion training has the extremelyimportant significance.At present, there are many methods to simulate low gravity environment for the astronaut toproceed locomotion training. But all of those have shortcomings. For solve the demand that want toproceed the locomotion training in the simulated low gravity environment on the surface of the earth.This paper proposes a conceptual design which can provide a simulated low gravity environmentastronaut training. The main structure design in this paper is a spring parallelogram unit which has thecharacteristic of gravity balance. Using this unit to construct an exoskeleton system with adjusting theparameter of the spring can achieve equal balance the weight of the human body. For this target, thispaper verify the core design of the structure which means a kind of spring parallelogram unit has theeffectiveness in the passive weight loss. For verifying the effectiveness exist the system whichconstructed by multi units, this paper use math deduction to compute the balance equation of thissystem. At the same time, this paper used the results of the compute design a kind of support platformwhich can protect the helicopter in the experiment. It can maintain constant vertical force on theprototype helicopter. The structure can protect the helicopter and the people around the experiment.Compare the simulation date between the used case and the unused case verify the ability of thedesign. For the target that wants to proceed the astronaut locomotion training in the simulated lowgravity environment on the earth, this paper establish an exoskeleton system with the base unit. Inorder to establish the system, this paper use the11spring parallelogram units to construct the mainpart of the system, the system structure of an exoskeleton is connected with the human body. Thispaper use simulation to validate effectiveness of the system and get a satisfactory result.