The Selection and Optimization of the Reconfigurable Shaped Reflector Structure Material
The method of applying deformable 2-D lattice materials in design of the main structure of a reconfigurable shaped reflector is proposed in this paper.Hex-chiral NPR(Negative Poissons Ratio)lattice,re-entrant NPR lattice and star ZPR(Zero Poissons Ratio)lattice are investigated in forming the main structure of a reflector,according to the mechanical properties requirement.Finite element models of reflectors built by these three types of lattice materials are developed.An example of a reflector with reconfigurable shape,which is transformed from a standard paraboloid,is given.The curvature change of the deformed shape is calculated.Then,the region with the largest curvature changing rate is found and the configuration of such area is regenerated.Finally,the surface accuracy of the region with the largest curvature changing rate is evaluated for reflectors built by the three compared lattice materials.The simulation results show that the highest surface accuracy is obtained when applying the hex-chiral lattice to the design of the reconfigurable shaped reflector.
Hang Zhao Houfei Fang Matthew J.Santer Lan Lan Yangqing Hou Ke Wu Hengkun Jiang
China Academy of Space Technology,710000 Xian,China Shanghai YS Information Technology Co.,Ltd,200240 Shanghai,China Department of Aeronautics,Imperial College,SW7 2AZ London,UK
国际会议
广州
英文
1-5
2018-05-11（万方平台首次上网日期，不代表论文的发表时间）