A Passive Three-coordinate Radar Antenna Vehicle Structural System Layout

With the rapid development of modern tracking and detection techniques, the surviability of radar system has been in the spotlight. The passive radar is a kind of receiving-only radar with good concealment, which doesnot transmit the electromagentic energy. This kind of radar system is not easily found by the foe while it can detect and track the targets, thus, the passive radar has become one of the development trends for radar system.One type of passive radar system is described in this paper. The difficulties in the structure layout design of whole radar vehicle are given below:Determination of external load on elevated mechanism; Research on the lifting device; Function realization of subsystem while the specifications are previuosly given.The layout of whole vehicle is analyzed firstly from the viewpoint of space structure requirement, the design considerations to meet the tactic requirements of subsystem are proposed, and the function realization of subsystem are presented while the specifications are previuosly given.The requirements for the antenna: elevated height of 26m, 15 minutes for emegency assembling and dismantling, whole vehicle is transportable by railway. In the design, the main and minor assemblies are fully considered and the space are completely used in order to meet the layout requirements of all facilities.For the elevated mechanism, the pulsation effect of wind is also the key point for the research. In consideration of the wind effect of elevated mechanism, the parameter selection is worthy of further exploration. In this paper, it is tried to obtain the initial parameters by simulation method according the engineering experience, which provides convenience for the prelimilary design review. The pulsation effect of wind is calculated through two different methods (quasi-static algorithm, gustiness factor algorithm), and the calculation method suitabe for the research can be obtained through the comparison of results.The structure layout should consider the space and the rigidity requirements in actual operating status. The finite element simulation and analysis should be employed. In this paper, the whole vehicle is analyzed through simulation method first, and after the preliminary rigidity situation is obtained, the detailed simulation and analysis for the key parts, e.g. lifting tower, anti-dumping leg of platform are conducted.