Optimization of New Negative Poisson’s Ratio Honeycomb Sandwich Reflector Structure

Abstract

The thermal properties of the new negative Poisson's ratio honeycomb structure is investigated. The Poisson's ratio is calculated subject to pure bending. On this basis, the influence of auxetic effect caused by negative Poisson's ratio on thermal conductivity is further investigated. The thermal anisotropic characteristics are also reported in accordance with the anisotropic physical mechanism. Applying this structure to the satellite antenna reflection surface, the thermal deformation value of the antenna reflection surface under a uniform temperature field can be calculated by finite element analysis. Using particle swarm optimization, the optimization target is the accuracy of the antenna reflection surface profile and the total mass of the antenna. The optimization parameter is the design parameters of the negative Poisson's ratio honeycomb structure. The results show that the satellite's overall profile accuracy is reduced by 22.6%. Effectively improving the accuracy of the reflective surface of the antenna.