The advanced role of computational mechanics and visualization in science and technology: analysis of the Germanwings Flight 9525 crash

doi:10.1088/1402-4896/aa593a

CSpace > 系统科学研究所

	The advanced role of computational mechanics and visualization in science and technology: analysis of the Germanwings Flight 9525 crash
	Chen, Goong 1,2,3; Wang, Yi-Ching 10; Perronnet, Alain 4; Gu, Cong 1; Yao, Pengfei5 ; Bin-Mohsin, Bandar 6; Hajaiej, Hichem 7; Scully, Marlan O.2,8,9
	2017-03-01
发表期刊	PHYSICA SCRIPTA
ISSN	0031-8949
卷号	92 期号:3 页码:33
摘要	Computational mathematics, physics and engineering form a major constituent of modern computational science, which now stands on an equal footing with the established branches of theoretical and experimental sciences. Computational mechanics solves problems in science and engineering based upon mathematical modeling and computing, bypassing the need for expensive and time-consuming laboratory setups and experimental measurements. Furthermore, it allows the numerical simulations of large scale systems, such as the formation of galaxies that could not be done in any earth bound laboratories. This article is written as part of the 21st Century Frontiers Series to illustrate some state-of-the-art computational science. We emphasize how to do numerical modeling and visualization in the study of a contemporary event, the pulverizing crash of the Germanwings Flight 9525 on March 24, 2015, as a showcase. Such numerical modeling and the ensuing simulation of aircraft crashes into land or mountain are complex tasks as they involve both theoretical study and supercomputing of a complex physical system. The most tragic type of crash involves 'pulverization' such as the one suffered by this Germanwings flight. Here, we show pulverizing airliner crashes by visualization through video animations from supercomputer applications of the numerical modeling tool LS-DYNA. A sound validation process is challenging but essential for any sophisticated calculations. We achieve this by validation against the experimental data from a crash test done in 1993 of an F4 Phantom II fighter jet into a wall. We have developed a method by hybridizing two primary methods: finite element analysis and smoothed particle hydrodynamics. This hybrid method also enhances visualization by showing a 'debris cloud'. Based on our supercomputer simulations and the visualization, we point out that prior works on this topic based on 'hollow interior' modeling can be quite problematic and, thus, not likely to be correct. We discuss the effects of terrain on pulverization using the information from the recovered flight-data-recorder and show our forensics and assessments of what may have happened during the final moments of the crash. Finally, we point out that our study has potential for being made into real-time flight crash simulators to help the study of crashworthiness and survivability for future aviation safety. Some forward-looking statements are also made.
关键词	fracture mechanics and impact engineering supercomputer simulations mathematical modeling pulverization
DOI	10.1088/1402-4896/aa593a
语种	英语
资助项目	Qatar National Priority Research Project[NPRP 5-674-1-114] ; Qatar National Priority Research Project[9-166-1-031] ; National Natural Science Foundation of China[61174083] ; National Natural Science Foundation of China[61573342] ; National Natural Science Foundation of China[61473126] ; King Saud University's Grant, Riyadh, Saudi Arabia[PEJP-16-106] ; Office of Naval Research[N00014-16-1-3054] ; Robert A. Welch Foundation[A-1261]
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000395789400001
出版者	IOP PUBLISHING LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/432
专题	系统科学研究所
通讯作者	Chen, Goong
作者单位	1.Texas A&M Univ, Dept Math, College Stn, TX 77843 USA 2.Texas A&M Univ, IQSE, College Stn, TX 77843 USA 3.Texas A&M Univ, Sci Program, Doha, Qatar 4.Sorbonne Univ, Univ Pierre & Marie Curie, Lab Jacques Louis Lions, Paris, France 5.Chinese Acad Sci, Acad Math & Syst Sci, Inst Syst Sci, Key Lab Syst & Control, Beijing 100190, Peoples R China 6.King Saud Univ, Coll Sci, Dept Math, POB 2455, Riyadh 11451, Saudi Arabia 7.New York Univ Shanghai, Shanghai 200122, Peoples R China 8.Baylor Univ, Quantum Opt Lab, Waco, TX 76706 USA 9.Princeton Univ, Inst Sci & Technol Mat, Princeton, NJ 08554 USA 10.Trane Inc, La Crosse, WI 54601 USA
推荐引用方式 GB/T 7714	Chen, Goong,Wang, Yi-Ching,Perronnet, Alain,et al. The advanced role of computational mechanics and visualization in science and technology: analysis of the Germanwings Flight 9525 crash[J]. PHYSICA SCRIPTA,2017,92(3):33.
APA	Chen, Goong.,Wang, Yi-Ching.,Perronnet, Alain.,Gu, Cong.,Yao, Pengfei.,...&Scully, Marlan O..(2017).The advanced role of computational mechanics and visualization in science and technology: analysis of the Germanwings Flight 9525 crash.PHYSICA SCRIPTA,92(3),33.
MLA	Chen, Goong,et al."The advanced role of computational mechanics and visualization in science and technology: analysis of the Germanwings Flight 9525 crash".PHYSICA SCRIPTA 92.3(2017):33.