The Research On Key Technologies Of Spacecraft In Orbit Maintenance Simulation

In today’s rapid development technology era, space technology has become an important indicator of a country’s level of development of modern technology. However, as the spacecraft organizations increasingly complex, which is a long time in a high vacuum, strong radiation, weightlessness of space environment, some even return to Earth of landing on another celestial body, through a variety of complex environments. Therefore, for the spacecraft, the reliability is particularly prominent. So, the initial design of the spacecraft should undergo a variety of tests, however, the traditional physical testing time-consuming and costly, for the complex space environment but can not fully meet the test criteria. Another, the spacecraft will also be a variety of problems during operation, but because of the special nature of its operating environment, before its repair have to undergo a series of tests. Therefore, spacecraft in orbit testing and maintenance of profound significance and significant economic benefits. Virtual reality technology to virtual simulation of spacecraft, spacecraft in orbit environment and spacecraft in orbit repair process. In this paper, against a spacecraft in orbit and repair simulation presents two simulation methods.This paper proposed ray tracing based field of view simulation of star sensor. The method first use of three-dimensional modeling techniques for spacecraft and space environment simulation model, build a virtual reality simulation environment, and to achieve the kinematics and dynamics simulation of spacecraft attitude and trajectory, as well kinematics simulation spacecraft components (windsurfing). The through the three-dimensional scene interactive technology to handle user interaction with the three-dimensional scene, including rotation zoom, pan as well select of three-dimensional scene interactive operations. Finally, using ray tracing and collision detection technology, achieve the visual effectiveness of the star sensor detection purposes. Experimental data shows, that this method can achieve a good calculate and analyze the situation occlusion of the sensor’s field of view between the spacecraft components, as well reflection of the sun’s rays after the first impact sensor. Moreover, according to the results of the analysis of light to generate relevant results reports.This paper proposed virtual human control technology based field of spacecraft in orbit maintenance simulation method. Methods based on the previous chapter spacecraft simulator running on the operating environment, furthermore the use of virtual human motion control technology, realistic simulation of spacecraft astronauts dismantle faulty equipment, spare parts and installation process of the electrical connector plug operation and disassembly of mechanical fasteners in rail maintenance operation scenarios, handling equipment work As well in this process. The whole process and be able to display in the 3-dimensional animation. Experimental results show that, this method not only the feasibility of carrying device path, astronauts repair operation reachability, visually monitored throughout the repair process can be implemented given evaluation, but also can through the evaluation of maintenance programs, suggestions for improvement maintenance program designed.