IMECH-IR  > 非线性力学国家重点实验室
An engineering model and its numerical validation for a malevolent aircraft impinging against a rigid target: Force and impulse estimations
Li TP; Wang W(王为); Yuan FP(袁福平); Wu XL(武晓雷)
Source PublicationNUCLEAR ENGINEERING AND DESIGN
2019-02-01
Volume342Pages:1-9
ISSN0029-5493
AbstractGenerally, the time-dependent impact force of a commercial aircraft against a rigid wall can be calculated based on the Riera's model, which consists of the static crushing force and the dynamic force. The reduction coefficient a is generally considered to be less than a unity in the modified Riera's function, while the influence of the impact velocity on the reduction coefficient is not investigated before. Moreover, the static crushing force is hard to be determined in practice. Thus an engineering model was proposed in the present study, and the total force was only described by the dynamic force and another velocity-dependent coefficient y. Based on a well-defined finite element model for the commercial aircraft Boeing B737-800, the entire impact process of the aircraft impinging on a rigid wall was reproduced by the commercial software LS-DYNA, and four different impact velocities (150, 200, 250, 300 m/s) were considered. Based on the simulation results, the influences of impact velocity on the two coefficients (alpha and gamma) were investigated and discussed by matching the aircraft impact force/impulse with the reaction force/impulse of the rigid wall. Finally, two formulas for the effects of impact velocity on the two coefficients were proposed, which is helpful for the engineers in designing and assessing the protecting shell of the nuclear power plant.
KeywordAircraft impact Numerical simulation Impact force Riera's model Finite element method Crushing force
DOI10.1016/j.nucengdes.2018.11.034
Indexed BySCI ; EI
Language英语
WOS IDWOS:000454924700001
WOS KeywordLARGE COMMERCIAL AIRCRAFT ; SAFETY ASSESSMENT ; IMPACT ; CONTAINMENT ; CRASH ; RESISTANCE ; SIMULATION ; MISSILES
WOS Research AreaNuclear Science & Technology
WOS SubjectNuclear Science & Technology
Funding OrganizationNational Science and Technology Major Project of China [2013ZX06002001]
Classification二类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78494
Collection非线性力学国家重点实验室
Affiliation1.{Li, Tieping} Minist Environm Protect Peoples Republ China, Nucl & Radiat Safety Ctr, 54 Hongliannancun, Beijing 100082, Peoples R China
2.{Wang, Wei、Yuan, Fuping、Wu, Xiaolei} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 North 4th Ring,West Rd, Beijing 100190, Peoples R China
3.{Wang, Wei、Yuan, Fuping、Wu, Xiaolei} Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li TP,Wang W,Yuan FP,et al. An engineering model and its numerical validation for a malevolent aircraft impinging against a rigid target: Force and impulse estimations[J]. NUCLEAR ENGINEERING AND DESIGN,2019,342:1-9.
APA Li TP,王为,袁福平,&武晓雷.(2019).An engineering model and its numerical validation for a malevolent aircraft impinging against a rigid target: Force and impulse estimations.NUCLEAR ENGINEERING AND DESIGN,342,1-9.
MLA Li TP,et al."An engineering model and its numerical validation for a malevolent aircraft impinging against a rigid target: Force and impulse estimations".NUCLEAR ENGINEERING AND DESIGN 342(2019):1-9.
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