On the theory of aircraft structural operational integrity control

icaf2023 Tracking Number 6

From the perspective of performing and completing the functions and missions, for aerocraft structure, its more comprehensive general quality characteristic, structural operational integrity (SOI), shows the inherent attribute which exists when a structure is sound and unimpaired in service or operational processes. In this paper, a brief introduction to aerocraft structural operational integrity (ASOI) is introduced firstly, including the concept of aerocraft structural operational integrity, the categorization of aerocraft structural operational integrity, and basic characterization methods of aerocraft structural operational integrity. As a general quality characteristic of aerocraft structure, aerocraft structural operational integrity can be controlled in structural life cycle time. Then, the basic concept of aerocraft structural operational integrity control (ASOIC) is presented. Consequently, the connotation of aerocraft structural operational integrity control is analyzed, which can be expressed by means of the control activity-wheel of aerocraft structural operational integrity formed by design/establishment, manufacture/achievement, evaluation/validation, monitoring/sustaining, recovery/increasement and inspection/exploitation activities of aerocraft structural operational integrity. Furthermore, the basic modes of aerocraft structural operational integrity control are shown here, which include open-loop control, coordinated control, and balanced control of aerocraft structural operational integrity. Finally, aerocraft structural operational integrity control strategy (ASOICS) was discussed briefly, which is to establish and apply an aerocraft structural operational integrity program (ASOIP) to all aerocraft structures. Keywords: aircraft structure, structural operational integrity, connotation of control, control mode, control strategy