Interval Uncertainty Optimization Method for Electromagnetic Orbital Launcher

The performance optimization and reliability of electromagnetic orbital launchers need to take into account the uncertainties that exist in the manufacturing and service processes. Considering that it is difficult to identify the problem of the parameter probability distribution in advance for electromagnetic orbital launchers, this paper uses the interval number to describe the uncertain variables and realizes the conversion of uncertainty optimization into deterministic optimization problems based on interval sequential relations; moreover, it establishes interval uncertainty optimization methods. The converted deterministic optimization problem is solved by combining a high-precision proxy model with an optimization algorithm to search for the optimal solution set. Finally, reliability estimation is achieved by taking the armature of the electromagnetic orbital launcher as the optimization object. The computational example proves that the method is able to deal with the optimization problem of the parameter interval of an electromagnetic orbital launcher containing uncertain parameters and has good engineering applicability.

Automated summary

This paper addresses the uncertainties in the manufacturing and service processes of electromagnetic orbital launchers and proposes a method for describing uncertain variables using interval numbers. It converts uncertainty optimization into deterministic optimization problems using interval sequential relations and establishes interval uncertainty optimization methods. By combining a high-precision proxy model with an optimization algorithm, the converted deterministic optimization problem is solved to find the optimal solution set. Finally, reliability estimation is achieved by optimizing the armature of the electromagnetic orbital launcher. The computational example demonstrates that the method can effectively handle optimization problems with uncertain parameters in the parameter interval of an electromagnetic orbital launcher and has good engineering applicability.