OPTIMIZATION OF NEW NEGATIVE POISSONS RATIO HONEYCOMB SANDWICH REFLECTOR STRUCTURE
The thermal properties of the new negative Poissons ratio honeycomb structure is investigated.The Poissons ratio is calculated subject to pure bending.On this basis,the influence of auxetic effect caused by negative Poissons 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 Poissons ratio honeycomb structure.The results show that the satellites overall profile accuracy is reduced by 22.6%.Effectively improving the accuracy of the reflective surface of the antenna.
Honeycomb Negative Poissons Ratio Finite Element Method Optimization Design
Xin LI Bei-bei SUN Liang-wei SU
School of Mechanical Engineering, Southeast University, Nanjing, 211189, P.R.China
国际会议
石家庄
英文
71-75
2019-11-01（万方平台首次上网日期，不代表论文的发表时间）