Research On Modeling And Motion Simulation Of Small Unmanned Airship

With the rapid development of science and technology, the communication industry has penetrated into all aspects of life. It can be exaggerated to say that any one of the production and living activities, if there is a modern communication technology, it will be a revolutionary development. Can be exaggerated, a production activities will have any revolutionary development with modern communication technology. In this age of the Internet, communication equipment is the basis and precondition of any information exchange. Most of the communications equipment is built as a long-term planning facility in the area of development. However, due to the natural factors, unexpected events, as well as some temporary production activities, components of a temporary communication equipment is the preferred solution in the short term and efficient solution. The small unmanned airship, which uses lighter than air as a suspension force, plays an important role in many temporary communication scenarios.Small unmanned airship, with fuel saving, long residence time in the air, no noise, the flight is more stable, do not need special landing places and so on. The research of this paper is the use of small unmanned airship, as a communication node, suspended in lower altitude conditions, the components of temporary emergency communications network.Firstly, the mechanical modeling of small unmanned airship is carried out and the mechanical and motion characteristics of the airship are analyzed from two dimensions of force and motion. The dynamic equation and the six degree of freedom motion model are constructed.Then, the nonlinear mathematical model is linearized, and in the transverse and longitudinal two directions, respectively, using mathematical equations, a more accurate simulation of the motion of the airship.Secondly, the design and implementation of the above mathematical model is realized by using the flight simulation module of Matlab/Simulink. The motion simulation and motion control system of small unmanned airship is designed and implemented,Including the simulation module of the natural environment factors, the airship movement simulation module, the data acquisition and control module.Finally, the simulation of the natural motion of the airship is carried out, and the control rate is simulated, and the control system scheme is verified and evaluated.