چكيده به لاتين
Abstract:
Special conditions governing the spatial circuits often leads to the emergence of the phenomenon of weightlessness and is underweight.The main purpose of compensating systems gravity, reaching close to zero gravity. In this thesis, The new mechanism of physical simulation to compensate for gravity to create free float and rotate around three axes, is designed with six degrees of freedom. The system uses springs, the potential energy of the system in all workspaces mechanism is kept constant. The mechanism is designed based on the technology a Passive gravity-balancing. The basis for this scheme is a Static gravity-balancing method. The weight of the device is fully compensated, As a result, overall costs reduced and high reliability is gone. This mechanism for operational simulation such as tracking, estimating, rendezvousing and docking, robotic capturing, or other service tasks. Moreover can be incentives for test equipment such as satellite control equipment installed on it.
In this thesis design a mechanism to create microgravity environment for satellites with a maximum weight of 60 kg and has dimensions of 50 cm is done. For this purpose connectivity of Jim Bali is designed to create three rotational degrees of freedom. Governing equations of the mechanism is derived. Constraints on it is obtained. Dynamic simulation for performance verification mechanism and the mechanism of resistance analysis to determine the dimensions of the parts is done at the end of mapping mechanism is provided. To confirm the mechanism of action of mechanisms built small models and tests have been performed on it. The results confirmed the simulation performance and accuracy of the mechanism.
Keywords: Passive gravity-balancing, Static gravity-balancing, Weightlessness, Microgravity
