A typical ground imitating tank is analyzed regarding it as the thin-walled structure composed of plates (skins) and beams (reinforcement) using finite element method (FEM). Through moving the location of reinforcements, make the skins close with the flanges of the reinforcements in order to imitate actually the connection of the skins and the reinforcements. The thickness of plates, the size and the geometry shape and the location of reinforcements are taken as parameters to be optimized. In calculation, not only consider effects of the oil-weight, the extra-pressure in tank and the dead weight of the tank on the stresses and displacements of the tank, but also analyze the effects of the inertia forces produced due to the rotation of the tank on the stresses and displacements. Displacement, stress and deformation distributions of the ground imitating tank under the three typical flying postures imitated are given.

Volume Subject Area:
Design Engineering
Topics:
Deformation, Displacement, Finite element analysis, Finite element methods, Flanges, Geometry, Inertia (Mechanics), Plates (structures), Pressure, Rotation, Shapes, Stress, Thin wall structures, Weight (Mass)
1.
Loughlan J, 2004, “Thin-walled structure, advance, in research, design and manufacturing technology,” Proceedings of the Fourth International Conference of Thin-walled Structures, Loughborough, UK, 22–24 June.
2.
Wang
Q.
,
Li
W. Y.
,
1999
, “
Buckling of thin-walled eccentric compressive members considering shear lag
,”
ASCE, J of Aerospace engineering
, Vol.
12
(
3
),
105
–
109
.
3.
Shen
J. H.
,
2005
, “
Analysis solution of box structure
,”
Chinese Journal of Applied Mechanics
,
22
(
2
),
263
–
270
.
4.
Long B, Song Z.X., 2003, “Structural reliability for spatial girder-panel structure based on SFEM,” Structure & Environment Engineering (In Chinese), No. 1, 54–58.
5.
Feng G., Zhang D., 2001, “Structural static analysis of combination of composite wings and a cabin,” Structure & Environment Engineering (In Chinese), No. 4, 49–54.
6.
Lei
Z. B.
,
Zhong
Z. H.
,
2003
, “
Explicit finite element analysis of thin-walled structure under impact loads
,”
Journal of Mechanics
, Vol.
32
No.
1
,
70
–
77
.
7.
ANSYS.6.1 Documentation, ANSYS Com.
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