石英灯阵模拟非均匀气动加热的功率优化

针对结构热试验非均匀热环境模拟的精细化需求，以石英灯阵热流分布理论解析方法为基础，建立了基于线性分析模型的石英灯阵功率快速优化方法，对石英灯阵模拟非均匀气动加热的功率优化问题进行了分析研究。结果表明：线性分析方法可以快速有效地优化石英灯阵功率，对于比较平缓的热流分布可以获得较好的优化结果，对于大梯度热流分布也能获得与遗传算法较为一致的热流优化结果和规律；模拟非均匀气动加热的功率优化结果对热流输入比较敏感，需要通过优化来选择合适的测点范围和测点数量得到相对稳定的系数矩阵。相关研究结果对模拟非均匀气动加热的石英灯阵功率优化设计具有重要参考意义。

Power optimization of non-uniform aerodynamic heating simulated by quartz lamp array

Aiming at the requirement of accurate simulation of non-uniform thermal environment in structural thermal test, a fast power optimization method of quartz lamp array based on the linear analysis model is established, based on the theoretical analysis of heat flux distribution of quartz lamp array. The power optimization of non-uniform aerodynamic heating simulated by quartz lamp array is analysed. The results show that the linear analysis method can optimize the power of quartz lamp arrays efficiently and effectively, obtain good results for the gentle heat flux distribution, and obtain the accordant heat flux optimization results as the genetic algorithm for the large gradient heat flux distribution. Since the power optimization results of non-uniform aerodynamic heating simulation are sensitive to the heat flux input, it is necessary to select the appropriate range and number of measuring points to obtain a relatively stable coefficient matrix. The results are of important reference significance for the power optimization of quartz lamp array that simulating non-uniform aerodynamic heating.