空中加油软管“甩鞭”现象安全性分析与仿真验证

For the hose aerial refueling system, the refueling hose is difficult to stabilize in a balance position due to interference of tanker wake, atmospheric turbulence, receiver bow wave, pilot operation, fuel pressure pulsation, etc. Thus the Hose Whipping Phenomenon (HWP) usually takes place in the docking phase of aerial refueling, which could reduce the docking success rate and the safety of refueling, and it is a typical hazard in aerial refueling process. Based on the System-Theoretic Accident Model and Processes (STAMP) and the System Theoretic Process Analysis (STPA) method, the safety analysis of HWP in aerial refueling process was carried out to systematically identify the unsafe action and causal scenes by constructing the control model, and a series of operational constraints were proposed from system level, unsafe action level and causing factors. According to the hazard function control structure of the HWP, the simulation verification platform was built by Simulink. The key causes of docking speed, reel mechanism control, and hose design length were inputted to verify the accuracy and feasibility of the proposed safety constraints.