Radome Sandwich Structure Analysis And The Ramp Design Research

Radome as an important part of radar antenna system has high design requirement, not only need to meet the use of performance requirements but also meet the requirements of structural design. In the design process for the radome does not have an established standard design process, this article from the structure design, the thickness of the radome optimization, structure, material selection, mechanical property analysis and transition connection structure design and so on several aspects of radome design step by step optimization and performance study.First of all, for the radome of sandwich structure design optimization.Under the condition of meeting the performance requirement to determine the structure type and the thickness range, then the core layer of sandwich structure calculation and analysis different skin thickness ratio, it is concluded that the optimal thickness of the structure. To calculate different thickness than the stability of interlayer form, it is concluded that the stability is better the structure of the minimum thickness ratio, and based on the analysis of performance, it is concluded that the optimal thickness ratio.Then, for the sandwich radome design and the overall analysis of the mechanical properties. Firstly, according to the appearance of airborne radome design requirements, to design the structure of the radome. According to the general process of engineering analysis, based on the finite element method through the mesh, assign material and unit attribute, the applied load and displacement constraints, composites radome finite element model is set up, and carries on the static analysis and buckling analysis, according to the results of the radome stiffness, strength and stability check.Finally, for the radome connection transition area of research. First connect the transition area design of sandwich structure theory analysis and research, determine the shape of transitional connection and layer form, the reasonable structure of the finite element model is set up. Again according to the result of finite element calculation and the constraint of radome connection form defined boundary conditions in the transitional zone model, by putting forward the transition of different Angle design of sandwich structure optimization design, determine the optimal sandwich structure transition zone of optimal transition Angle.Production transition zone connection test specimen, design reasonable test conditions, experimental study on the radome transition area, to prove the validity of the calculation.