太阳电池多层复合结构试验及数值模拟研究

The core consists of to improve the stiffness of flexible solar cells, a multilayer composite structure of solar cells to stratospheric airship was designed, in which rigid solar cell of encapsulation as the surface to asymmetric honeycomb core. A glass fiber ribbon was used to improve the stiffness characteristic of the structure. It decreases the bending modulus of structural forms by 97.59% and 38.03% deflection increment. Then the different thicknesses of honeycomb core for the multilayered structure under pressure was analyzed by FEM( finite element method)software. Different thicknesses of honeycomb core also affect the thermal control problem between the photovoltaic cell multilayer composite structure and the airship envelope. Then, a thermal heat transfer model of multilayer composite structure is proposed, and the equivalent thermal conductivity coefficients of rigid solar cell of encapsulation and Nomex honeycomb are calculated based on the environment test. The load- deformation curves and the temperature profile of Photovoltaic Cell multilayer composite structure versus each thickness of honeycomb core. Considering the quality of the whole structure, the article finally gives the conclusion of the optimal thickness of honeycomb core with more detailed descriptions.In some way, our study can provide helpful support for further engineering applications of photovoltaic cell multilayer composite structure on the surface of stratospheric airship.