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Particular risk analysis: impact on hybrid aircraft design

机译：特殊风险分析：对混合飞机设计的影响

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Purpose - This document presents a Particular Risks Assessment (PRA) performed on an Uncontained Engine Rotor Failure (UERF) event for the new aircraft design hybrid Extremely Short Take Off and Landing All Surface (ESTOLAS) aircraft. All three propellers of the ESTOLAS (one hub propeller and two feed propellers) are evaluated for their impact on the aircraft in case of an UERF. The purpose of this paper is to present an illustration of the safety analysis and its requirement in new aircraft development. Design/methodology/approach - The methodology used is in accordance with the aerospace industry safety standard Society of Automobile Engineers (SAE) Aerospace Recommended Practices (ARP) 4,761 (Guidelines and Methods for Conducting the Safety Assessment Process on Civil Airborne Systems and Equipment). Trajectory analyses are used on a digital mock-up of the aircraft to simulate the movement of the propeller blade fragments and its effect on the aircraft and its systems. Findings - The paper provides an insight into the industry practice of performing PRA on new aircraft designs. The study identifies safe and unsafe regions of the aircraft, with the UERF event in mind. Technical solutions are suggested to minimize the damage to the aircraft and its systems. Originality/value - This document fulfills the originality criterion, since it is an analysis performed on a new aircraft design - the ESTOLAS.
机译：目的-本文件介绍了针对新型飞机设计的混合动力极短距起降全能飞机（ESTOLAS）的飞机，在未完成的发动机转子故障（UERF）事件中进行的特殊风险评估（PRA）。在使用UERF的情况下，评估了ESTOLAS的所有三个螺旋桨（一个轮毂螺旋桨和两个进料螺旋桨）对飞机的影响。本文的目的是介绍安全性分析及其在新飞机开发中的要求。设计/方法/方法-所使用的方法符合航空航天工业安全标准，汽车工程师协会（SAE）航空航天推荐规范（ARP）4,761（对民用机载系统和设备进行安全评估过程的指南和方法）。轨迹分析被用于飞机的数字模型，以模拟螺旋桨叶片碎片的运动及其对飞机及其系统的影响。调查结果-本文提供了对在新飞机设计上执行PRA的行业实践的见解。该研究考虑到UERF事件，确定了飞机的安全区域和不安全区域。建议采用技术解决方案以最大程度地减少对飞机及其系统的损害。原创性/价值-该文件符合原创性标准，因为它是对新飞机设计-ESTOLAS进行的分析。

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