A plus system network model for reliability allocation in reconfigurable UAV systems with functional adaptabilityOA

In the engineering domain,the execution of multiple tasks by complex systems holds critical significance for optimizing resource utilization efficiency and ensuring operational stability.However,existing studies on reliability allocation for multi-tasking complex systems exhibit two fundamental limitations:insufficient theoretical exploration of system reliability for non-canonical series-parallel task configurations,and a lack of modeling frameworks that address system reconfigurability and partial functional substitution characteristics.To bridge these gaps,this paper proposes a substitutable Plus System Network(PSN)architecture model for multi-task reliability allocation.The model constructs a PSN-based task architecture that systematically integrates task criticality metrics and system substitutability patterns,employing comprehensive loss minimization as the optimization objective to achieve optimal reliability allocation.This approach effectively resolves the reliability allocation challenge for reconfigurable complex systems with partial functional substitution capabilities.Practical validation through Unmanned Aerial Vehicle(UAV)application cases demonstrates the methodological rigor and operational efficacy of the proposed framework.