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《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:

2012年02期

Page:

18-23

Research Field:

道路与铁道工程

Publishing date:

Info

Title:

Finite element model of flexible airport pavement structure for large aircraft

Author(s):

YOU Qing-long¹; 2; LING Jian-ming²; YUAN Jie²; SHAO Dao-jie³

1.Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064,Shaanxi,China;2.Key Laboratory for Road and Traffic Engineering of Ministry of Education, Tongji University,Shanghai 201804,China;3.General Station of Quality Inspection for Special Engineering of Civil Aviation,Civil Aviation Administration of China,Beijing 100007,China

Keywords:

airport engineering;  flexible airport pavement;  finite element model;  ABAQUS;  large aircraft

PACS:

V351.11

DOI:

-

Abstract:

The finite element model of three-layer pavement structure was set up by using general finite element software ABAQUS.The influences of model geometry size,boundary conditions,contact conditions among layers,element types,and grid divisions on the mechanical responses of pavement structure were analyzed under large aircraft load.The parameters of flexible airport pavement structure’s finite element model were put forward to adapt the characteristic of large aircraft load,and the effectiveness of the model was verified by using the measured mechanical response data.Study result indicates that considering the whole landing gear load of large aircraft,the geometry size of finite element model is appropriately 30 m×30 m×10 m,and the tie is chosen for completely continuous interaction among layers.C3D8R is used as an optimal element type,and the element size of load region could be controlled not to exceed 0.05 m×0.05 m.All the displacements are constrained at the bottom of the model,horizontal displacement is corresponded with the model constraint around,and the finite element model is effective verified by measured data.7 tabs,6 figs,14 refs.

References:

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[7] THOMPSON M R, GARG N. Wheel load interaction: crit-ical airport pavement responses[R]. Urbana: University of Illinois at Urbana-Champaign, 1999.
[8] 赵鸿铎.适应大型飞机的沥青道面交通荷载分析方法及参数的研究[D].上海:同济大学,2006. ZHAO Hong-duo. New generation large aircraft oriented load analysis method and parameters for asphalt pavement design[D]. Shanghai: Tongji University, 2006.(in Chinese)
[9] SUKUMARAN B, WILLIS M, CHAMALA N. Three dimensional finite element modeling of flexible pavements[C]∥SCHWARTZ C W, TUTUMLUER E, TASHMAN L. Advances in Pavement Engineering(GSP 130). Austin: ASCE, 2005: 1-12.
[10] SAAD B, MITRI H, POOROOSHASB H. Three-dimen-sional dynamic analysis of flexible conventional pavement foundation[J]. Journal of Transportation Engineering, 2005, 131(6): 460-469.
[11] KUO C M, CHOU F J. Development of 3-D finite element model for flexible pavements[J]. Journal of the Chinese Institute of Engineers, 2004, 27(5): 707-717.
[12] JOHNSON D J. Investigation of the performance of flexible pavement systems under moving loads using finite element analyses[D]. Glassboro: Rowan University, 2008.
[13] PARK D W. Characterization of permanent deformation in asphalt concrete using a laboratory prediction method and an elastic-viscoplastic model[D]. College Station of Texas: Texas A & M University, 2004.
[14] LIVNEH M, DIVINSKY M. Comparative analysis of the old MWHGL and the new NAPTF data[J]. Journal of Transportation Engineering, 2007, 133(1): 20-29.

Memo

Memo:

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Common functions

Last Update: 2012-04-30