为了进一步降低卫星结构质量,采用镁合金替代铝合金成为新一代蜂窝结构蒙皮.基于Reissner剪切理论,探究蜂窝结构蒙皮材料变化对单板力学性能的影响.基于Patran-Nastran软件分析并对比了使用铝合金和镁合金蒙皮蜂窝板结构的典型卫星平台的力学性能.由于余量较大,提出减小面板厚度使结构进一步减重的可能性.试验结果显示,卫星在符合设计标准情况下最高减重达30.7％,因此镁合金蒙皮蜂窝结构值得在卫星中推广使用.%To reduce the weight of the satellite further,magnesium alloy is considered to substitute aluminum alloy skin at aluminum honeycomb sandwich structure panel.The influence of material on the mechanical property of sandwich structure panel is analyzed based on Reissner theory.The mechanical properties of sandwich panel are tested and the mechanical properties of satellite used magnesium/aluminum alloy skin honeycomb sandwich panels are analyzed and com pared based on Patran-Nastran software.Because of the margin design,the thickness of skin is considered to decrease so that the weight can be reduced further.The solutions show that the lightening of the satellite is as high as 30.7 ％,so the magnesium alloy skin honeycomb sandwich panel should be used widely on the satellite.
展开▼
