Research On Health Monitoring System Of FAST 30-Model

FAST is a five-hundred-meter aperture spherical telescope with an active reflector, the opportunity it has will bring scientists in china into the front edge of radio astronomy and deep space exploration and communication, and make our country a member of great power on radio astronomy. The supporting structure of FAST belongs to the field of civil engineering, the feasibility research started from 1994, one originality innovation of the telescope is the active reflecting surface. When it works, the reflecting surface will fit into a paraboloid instantly.The work state is a variable state, thus, it is necessary to monitoring and diagnosing its long-term performances, discovering the damages in time, forecasting the possible disaster, and reporting safety assessment. FAST is a important project with a huge cost, has a great effect on society and international, therefore, research on health monitoring system is meaningful and imminent.In order to testify the feasibility of the theoretical analysis of FAST, the reduced scale model experiment of FAST is needed. The radius of the model's reflecting surface is 18meters and the caliber is 30 meters. This paper does a research on health monitoring system of FAST 30-model, its results could be applied on FAST 30-model, and the base of health monitoring system of FAST.Firstly, fixes monitoring contents, defines constituents and functions of the system, and gives the working flow according to the structure of FAST 30-model.Secondly, explores the sub-system on sensors, and finishes the lectotype and optimal location study of each kind of sensors.Thirdly, puts forward the method of safety assessment of FAST 30-model, and designs the health monitoring system by the software of Matlab.The last part of this paper is about construction analysis of FAST 30-model, it consists of research on construction schemes, simulation and analysis of construction, and error analysis of construction.