Placement and size-oriented heat dissipation optimization for antenna module in space solar power satellite based on interval dimension-wise method

Abstract

Space solar power satellite is one of the large space systems for supplying solar energy in the future, and its effective thermal management and heat dissipation can affect safety and efficiency. To balance the mass and temperature distribution in the antenna module, a novel placement and size-oriented heat dissipation optimization is proposed in space solar power satellite based on an interval dimension-wise method considering both design and uncertain variables. To improve the accuracy of the interval propagation, a novel interval dimension-wise method is investigated based on the Legendre polynomial approximation model and the union operator of the boundary points combinations. A novel mapping matrix with sensitivity analysis is developed to determine the final design variables from the candidate ones, which constitutes a relationship between the uncertain parameters and design variables. The placement and size-oriented heat dissipation optimization is solved using the coevolutionary constrained multi-objective optimization framework (CCMO), and thermophysical response intervals of optimal heat dissipation layout can be obtained using the interval dimension-wise method again. The effectiveness of the proposed method is verified by two numerical examples, which can reflect the applicability of the proposed heat dissipation.