Design of a system for Aircraft Fuselage Inspection

Ruiz Fernández, K. Keller, J. Robins
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引用次数: 9

Abstract

The average age of commercial aircraft operating domestic flights in the United States is 10.7 years and continues to increase. Advances in robotics and imaging technologies show potential to reduce costs, time and to improve quality of fuselage inspections. A stochastic simulation was developed to evaluate the inspection process. The simulation represents differences in inspection techniques for components of the aircraft, such as the landing gear compared to the lap-splice panels, by categorizing the aircraft with ten representative regions. Simulation results indicates a decrease in the time required to complete inspection while simultaneously improving the overall quality in crack detection by the use of emerging non-destructive inspection technologies in aircraft maintenance: non-contact laser-ultrasonic (average savings of 43.28 minutes per section per inspection), synthetic aperture imaging drone (average savings of 45.60 minutes), and thermographic robotic crawler (crack detection rate increase of 54% with an average increase of 26.86 minutes per section). Using a utility hierarchy focused on performance, safety, and ability to implement, the most viable technological alternatives rank: non-contact laser-ultrasonic with a utility value of 0.824, human inspector with a utility of 0.811, synthetic aperture imaging with a utility of 0.783, and thermographic robotic crawler with a utility of 0.748. Based on the simulation results and utility analysis, it is recommended that MRO facilities implement non-contact laser ultrasonic technology as a method to scan the exterior of their aircraft to detect widespread fatigue damage.
飞机机身检测系统的设计
美国国内商用飞机的平均机龄为10.7年,而且还在继续增加。机器人技术和成像技术的进步显示出降低成本、缩短时间和提高机身检查质量的潜力。开发了一个随机模拟来评估检查过程。通过将飞机分为十个代表性区域,模拟显示了飞机部件检查技术的差异,例如起落架与搭接板的比较。仿真结果表明,通过在飞机维修中使用新兴的无损检测技术,完成检测所需的时间减少了,同时提高了裂纹检测的整体质量:非接触式激光超声(每切片平均节省43.28分钟)、合成孔径成像无人机(平均节省45.60分钟)、热成像机器人履带(裂缝检出率提高54%,每切片平均增加26.86分钟)。使用侧重于性能、安全性和实施能力的效用等级,最可行的技术替代方案排名:非接触式激光超声的效用值为0.824,人工检查员的效用值为0.811,合成孔径成像的效用值为0.783,热成像机器人的效用值为0.748。基于仿真结果和效用分析,建议MRO设施采用非接触式激光超声技术作为扫描飞机外部以检测广泛疲劳损伤的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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