基于TARAM的民用飞机结构类事件的持续运营安全评估

在民用飞机持续适航阶段，需要开展风险评估工作，以保证运营安全水平能够维持在可接受的范围之内。基于运输类飞机风险评估方法（TARAM）及风险准则，考虑不同的结构裂纹尺寸，给出基于机队故障数、临界裂纹、特征寿命的机队风险值计算方法；以机身增压边界结构受到循环增压载荷的疲劳裂纹为例，进行持续安全风险评估，计算该事件的风险水平，以及纠正措施实施时限；并通过使用纠正措施实施时限内个人风险进行验证。结果表明：个人风险低于风险阈值，本文制定的纠正措施及实施时限满足机队持续安全要求，可保证该机队的运行安全。

Continued operational safety Assessment of Civil Aircraft Structural Events Based on TARAM

To ensure that safety level can be maintained within the acceptable range, civil aviation aircraft need to carry out risk assessment in the continued airworthiness stage. This paper is based on the Transport Aircraft Risk Assessment Method (TARAM) and the risk criteria, by considering different crack sizes, and giving the calculation method of fleet risk value based on the fleet fault number, critical crack and characteristic life. And taking the fatigue crack of the fuselage supercharging boundary structure as an example for ongoing safety risk assessment to calculate the risk level of the event, and the time limit of corrective action implementation. And the implementation time limit of corrective measures was validated by individual risk within time limit using corrective actions. Since the results show that the individual risk is below the risk threshold, it can be concluded that the corrective measures and implementation time limit formulated in this article meet the continuous safety requirements of the fleet and thus ensure the safe operation of the fleet.