Engineering Computations

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AEROTHERMODYNAMIC ANALYSIS FOR AXISYMMETRIC PROJECTILES AT SUPERSONIC/HYPERSONIC SPEEDS
Engineering Computations - Tập 10 Số 5 - Trang 423-445 - 1993
MICHAEL J.NUSCA
An aerothermodynamic design code for axisymmetric projectiles has been developed using a viscous‐inviscid interaction scheme. Separate solution procedures for the inviscid and the viscous (boundary layer) fluid dynamic equations are coupled by an iterative solution procedure. Non‐equilibrium, equilibrium and perfect gas boundary layer equations are included. The non‐equilibrium gas boundar...... hiện toàn bộ
Instabilities induced by coarse meshes for a nonlinear shell problem
Engineering Computations - - 1996
M.A.Crisfield, X.Peng
Presents a range of numerical results obtained from the geometrically nonlinear analysis of a cantilevered cylindrical shell. Shows that, while the fine‐mesh solution involves no limit points, as the mesh is coarsened, an increasing series of “false limit points” is encountered.
YADE‐OPEN DEM: an open‐source software using a discrete element method to simulate granular material
Engineering Computations - Tập 26 Số 7 - Trang 786-805 - 2009
J.Kozicki, F.V.Donzé
PurposeYADE‐OPEN DEM is an open‐source software based on the discrete element method, (DEM) which uses object oriented programming techniques. The purpose of this paper is to describe the software architecture.Design/methodology/approach<...... hiện toàn bộ
Shape representation of axi‐symmetrical, non‐spherical particles in discrete element simulation using multi‐element model particles
Engineering Computations - Tập 16 Số 4 - Trang 467-480 - 1999
J.F.Favier, M.H.Abbaspour‐Fard, M.Kremmer, A.O.Raji
Advanced solution methods in structural optimization based on evolution strategies
Engineering Computations - Tập 15 Số 1 - Trang 12-34 - 1998
ManolisPapadrakakis, Nikolaos D.Lagaros, GeorgThierauf, JianboCai
The objective of this paper is to investigate the efficiency of hybrid solution methods when incorporated into large‐scale optimization problems solved by evolution strategies (ESs) and to demonstrate their influence on the overall performance of these optimization algorithms. ESs imitate biological evolution and combine the concept of artificial survival of the fittest with evolutionary o...... hiện toàn bộ
On the dynamic effects of explicit FEM in sheet metal forming analysis
Engineering Computations - Tập 15 Số 6 - Trang 750-776 - 1998
W.J.Chung, J.W.Cho, T.Belytschko
This study is concerned with dynamic effects when we use explicit FEM for sheet metal forming analysis. Since sheet metal forming is a quasi‐static process, time scaling and mass scaling techniques have been widely used in order to save computation time. However, to define suitable scale factor still requires several trials. In this study, an internal energy error estimate which indicates ...... hiện toàn bộ
The rough set theory and applications
Engineering Computations - - 2004
ChengdongWu, YongYue, MengxinLi, OseiAdjei
This paper presents a comprehensive review of the available literature on applications of the rough set theory. Concepts of the rough set theory are discussed for approximation, dependence and reduction of attributes, decision tables and decision rules. The applications of rough sets are discussed in pattern recognition, information processing, business and finance, industry, environment e...... hiện toàn bộ
Numerical simulation of hydrodynamic interaction produced during the overtaking and the head-on encounter process of two ships
Engineering Computations - - 2012
D.C.Lo
Finite element analyses of sandwich structures: a bibliography (1980–2001)
Engineering Computations - - 2002
JaroslavMackerle
Gives a bibliographical review of the finite element analyses of sandwich structures from the theoretical as well as practical points of view. Both isotropic and composite materials are considered. Topics include: material and mechanical properties of sandwich structures; vibration, dynamic response and impact problems; heat transfer and thermomechanical responses; contact problems; fractu...... hiện toàn bộ
Computational issues arising in multidimensional elliptic inverse problems: the inverse problem of electrocardiography
Engineering Computations - Tập 12 Số 4 - Trang 343-356 - 1995
Lorraine G.Olson, Robert D.Throne
We compare a recently proposed generalized eigensystem approach and a new modified generalized eigensystem approach to more widely used truncated singular value decomposition and zero‐order Tikhonov regularization for solving multidimensional elliptic inverse problems. As a test case, we use a finite element representation of a homogeneous eccentric spheres model of the inverse problem of ...... hiện toàn bộ
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