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A multi-variable analysis of aircraft structure disassembly ‐ A technico-economic approach to increase the recycling performance
Sustainable Materials and Technologies ( IF 9.6 ) Pub Date : 2021-07-10 , DOI: 10.1016/j.susmat.2021.e00316
Hamidreza Zahedi 1 , Christian Mascle 2 , Pierre Baptiste 2
Affiliation  

Despite international efforts in maximizing products recycling, complex product reprocessing poses a considerable threat on sustainable development on a macro scale. Thousands of aircrafts reach their End-of-Life each year with most of their components ending up in graveyards and landfill. Airframe disassembly, as a main step, is a complex process in terms of the required effort versus the regained values. This research proposes a disassembly planning model to evaluate the ease of disassembly for complex products. Three key disassembly parameters are employed including time, difficulty and, material compatibility to evaluate the efficiency of the disassembly strategies based on technical, economic and environmental criteria. A mathematical model is presented to find the most efficient solution based on the defined criteria. A mid-range airliner stabilizer was selected as a case study to validate the efficiency of the proposed method. The analysis includes airframe disassembly site visits, aircraft documentation analysis, interviews with experts and disassembly examination over a three-year period. The results from the proposed method shows the selected disassembly plan is 65% easier to perform, 85% less time-consuming and allows the user to gain more material recovery than conventional technics. The scalable findings of this research can be useful to increase the efficiency of the disassembly task on complex products particularly of interests to the disassembly sites, product owners and OEMs.



中文翻译:

飞机结构拆卸的多变量分析——提高回收性能的技术经济方法

尽管国际上努力最大限度地回收产品,但复杂的产品再加工对宏观可持续发展构成了相当大的威胁。每年有数千架飞机报废,其大部分部件最终被送往墓地和垃圾填埋场。作为一个主要步骤,机身拆卸是一个复杂的过程,涉及所需的工作量与重新获得的价值。本研究提出了一种拆卸规划模型来评估复杂产品拆卸的难易程度。采用三个关键的拆卸参数,包括时间、难度和材料兼容性,以根据技术、经济和环境标准评估拆卸策略的效率。提出了一个数学模型,以根据定义的标准找到最有效的解决方案。选择中程客机稳定器作为案例研究,以验证所提出方法的效率。分析包括为期三年的机身拆卸现场访问、飞机文件分析、专家访谈和拆卸检查。所提出方法的结果表明,所选择的拆卸计划比传统技术更容易执行 65%,耗时减少 85%,并且允许用户获得更多的材料回收。这项研究的可扩展发现有助于提高复杂产品的拆卸任务效率,尤其是对拆卸现场、产品所有者和原始设备制造商感兴趣的产品。为期三年的专家访谈和拆解检查。所提出方法的结果表明,所选择的拆卸计划比传统技术更容易执行 65%,耗时减少 85%,并且允许用户获得更多的材料回收。这项研究的可扩展发现有助于提高复杂产品的拆卸任务效率,尤其是对拆卸现场、产品所有者和原始设备制造商感兴趣的产品。为期三年的专家访谈和拆解检查。所提出方法的结果表明,所选择的拆卸计划比传统技术更容易执行 65%,耗时减少 85%,并且允许用户获得更多的材料回收。这项研究的可扩展发现有助于提高复杂产品的拆卸任务效率,尤其是对拆卸现场、产品所有者和原始设备制造商感兴趣的产品。

更新日期:2021-07-13
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