基于跨尺度等效弹性的航空装备损修性能评估

To solve the performance evaluation of equipment systems in complex damage and repair mode, a cross-scale equivalent elasticity simulation method is proposed, which ensures the calculation accuracy and reduces the modeling burden caused by damage and repair and geometric features by cross-scale mapping. Firstly, the equivalent elasticity theory is introduced, and the equivalent elastic parameters are used to simulate and replace the influence of repair factors on the constitutive behavior in the micro-scale structure. Secondly, cross-scale modeling is carried out to map the mechanical behavior of the micro-scale structure to the macroscopic equipment system. Finally, experiment is carried out with the verification case of aviation radar radome after water-immersion or perforation repairing and the result of verification experiment shows that the average accuracy of the analysis results is 6.3%. It also greatly reduces the workload of testing and simulation and provides an idea for the damage and repair performance evaluation of complex aviation equipment systems.