Triangular matrix frame supporting structure of dome radar
A support structure and triangular technology, applied in the aviation field, can solve the problems of increasing design cost and process difficulty, compressing the installation range of the antenna array, and reducing the utilization rate of the structure, so as to achieve high structural utilization rate, good carrying capacity, and wave-transparent area The effect of area increase
Active Publication Date: 2019-02-19
SHAANXI AIRCRAFT CORPORATION
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Problems solved by technology
Due to the limitation of processing size, the size of the inner joint 4 is generally large, and its connection area occupies part of the size of the frame edge 3, which reduces the installation range of the antenna array and reduces the structural utilization
In addition, due to the existence of the inner joint 4, an additional fairing 2 of composite material needs to be designed in this area, while taking into account the assembly coordination with the radome 1, which increases the design cost and process difficulty
Method used
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[0023] A new triangular array frame structure docking method involved in the present invention is described in detail in conjunction with the accompanying drawings:
[0024] A triangular array frame support structure of a dome-type radar is provided. Adjacent frame edges 3 are connected by straight parts of D-shaped docking rings 5 at the butt joint surfaces, and inner joints 4 are used to realize the connection at the inner angles. In order to maximize the structural utilization of the triangular array frame plane, the docking area is extended beyond the intersection of the three frame edges 3 to ensure the maximum available installation area of the array. The D-shaped docking ring 5 is designed to meet the dimensional requirements of the triangular frame structure while taking into account a certain load-bearing effect, and a stronger inner joint 4 is designed on the inner side to bear most of the inertial load and aerodynamic load on the frame edge 3 . In addition, due ...
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Abstract
The invention belongs to the technical field of aviation, and a triangular matrix frame supporting structure of a dome radar. An 'n'-shaped connecting structure is designed in a triangular area between adjacent frame edges of a current triangular matrix frame supporting structure through an inner joint. The mounting range of an antenna array surface is narrowed by a connecting area of the inner joint, and the use ratio of the structure is reduced. The outer sides of a docking area are connected by a D-shaped docking ring, the inner sides of the docking area are connected by the inner joint, the triangular matrix frame supporting structure has good bearing capacity, the use area of a frame plane is not occupied, the size of the antenna array surface can be selectively maximized, and the useratio of the triangular matrix frame supporting structure is high. The D-shaped docking ring with a structure profile in the shape of a Chinese character 'tu' can serve as a mounting separation surface of an antenna housing, a recessed area is designed in the middle of the docking ring, necessary process allowance is provided for mounting the antenna housing, and mounting is facilitated. The areaof a wave-transparent area of the antenna housing designed based on a connecting mode is increased, and the performance of an antenna is improved.
Description
technical field [0001] The invention belongs to the technical field of aviation and relates to a triangular array frame support structure of a dome radar. Background technique [0002] The airborne early warning radar based on the three-sided array antenna can realize all-round search. It is characterized by the use of three antennas installed on the back of the aircraft in the form of an equilateral triangle. Usually, the quality and outer dimensions of the antenna are relatively large, and it is subject to various flight loads. Therefore, the triangular array structure used to install the three-sided array antenna, especially the selection of the docking method at the three corners, has become a design difficulty. [0003] Currently, if Figure 1-3 As shown, the support structure of the triangular array frame includes three frame edges 3, and the connection structure in the shape of "Ji" is usually designed in the triangular area through inner joints 4 between adjacent fra...
Claims
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Login to View More IPC IPC(8): H01Q1/12
CPCH01Q1/12
Inventor 陈磊陈永利梁永贵李敏敏谭小辉王康张超张云文何晓雪张俊亮
Owner SHAANXI AIRCRAFT CORPORATION