Research On The Visual Simulation Technology Of Attitude Control For Space Orbit Transfer Vehicle

Space orbit transfer vehicle (SOTV) is a manned or an unmanned spacecraft,which can carry out the extensive orbital transfer between the space station and targetorbit. SOTV can finish many important missions, such as space transportation, orbiterror correction and orbital communication service. In most of the space missions,attitude of the SOTV needs to be controlled. There is such an example that one azimuthaxis of the SOTV needs to be controlled, pointing to other cooperative targets ornon-cooperative targets during the flight. Because of the above reason, the problem ofSOTV attitude controlled has become the important key to success ratio of spacemission. The visual simulation technology can build up a three-dimensional simulationscene, and get the attitude information feedback and description. The information gotfrom the visual simulation technology will offer the important reference frame foranalyzing and verifying the rationality of the attitude control scheme. Therefore, thispaper studies on the visual simulation technology of the SOTV attitude control.According to the features of SOTV attitude control in visual simulation, this paperstudies the reference coordinate system and Euler angle used to describe the attitude ofspacecraft. Besides, the theory and technology of distributed visual simulation based onHLA/STK are also analyzed in this paper. Furthermore, the paper establishes thetheoretical basis of SOTV attitude control in visual simulation. To solve the problem ofSOTV attitude control in distributed visual simulation, the paper sets up the referencecoordinate system and body coordinate system used to build attitude control and designthe attitude control algorithm. On the basis, also base on the standard of the distributedvisual simulation, SOTV attitude control (distributed visual simulation) platform is built.And, to combine with the attitude control algorithm, the concrete function of theplatform is designed. With the help of the simulation platform, which makes the processof the attitude control visual through a concrete example simulated, researchers couldverify the rationality and validity of the attitude control algorithm.