Engineering Computations: Volume 34 Issue 6

A robust explicit integration of elasto-plastic constitutive models, based on simple subincrement size estimation

Miroslav Halilovic, Bojan Starman, Marko Vrh, Boris Stok

The purpose of this study, which is designed for the implementation of models in the implicit finite element framework, is to propose a robust, stable and efficient explicit…

Alternative Kriging-HDMR optimization method with expected improvement sampling strategy

Enying Li, Fan Ye, Hu Wang

The purpose of study is to overcome the error estimation of standard deviation derived from Expected improvement (EI) criterion. Compared with other popular methods, a…

Modelling trajectories of solid particle motion in the cyclone

Pranas Baltrėnas, Teresė Leonavičienė

This purpose of the paper is to examine the multi-channel cyclone created at the Vilnius Gediminas Technical University (VGTU) Research Institute of Environmental Protection. The…

Fast multipole cell-based domain integration method for treatment of volume potentials in 3D elasticity problems

Qiao Wang, Wei Zhou, Yonggang Cheng, Gang Ma, Xiaolin Chang

Domain integrals, known as volume potentials in 3D elasticity problems, exist in many boundary-type methods, such as the boundary element method (BEM) for inhomogeneous partial…

Weighted area/angle distortion minimization for Mesh Parameterization

Daniel Mejia, Diego A. Acosta, Oscar Ruiz-Salguero

Mesh Parameterization is central to reverse engineering, tool path planning, etc. This work synthesizes parameterizations with un-constrained borders, overall minimum angle plus…

On near-optimal deadlock control for a class of generalized Petri nets using reachability graph

YiFan Hou, Murat Uzam, Mi Zhao, ZhiWu Li

Deadlock is a rather undesirable phenomenon and must be well solved in flexible manufacturing systems (FMS). This paper aims to propose a general iterative deadlock control method…

Optimization of the reefed parachute using genetic algorithm

Xue Yang, Li Yu, Xiao-Shun Zhao

The purpose of this paper is to find optimal reef parameters to minimize the maximum instantaneous opening load for a reefed parachute with geometry and environmental parameters…

Numerical investigation of MHD nanofluid free convective heat transfer in a porous tilted enclosure

M. Sheikholeslami

The effect of a magnetic field on nanofluid natural convection in a porous annulus is simulated. Control volume-based finite element method (CVFEM) is applied to find the…

Numerical simulations of non-stationary distributions of electrochemical potentials in SOFC

Mayu Muramatsu, Keiji Yashiro, Tatsuya Kawada, Kenjiro Tarada

The purpose of this study is to develop a simulation method to calculate non-stationary distributions of the chemical potential of oxygen in a solid oxide fuel cell (SOFC) under…

Investigation of rotating stall characteristics in a centrifugal pump impeller at low flow rates

Peijian Zhou, Fujun Wang, Jiegang Mou

Rotating stall is an unsteady flow phenomenon that causes instabilities and low efficiency in pumps. The purpose of this paper is to investigate the rotating stall characteristics…

Estimating statistical moments of random systems based on appropriate reference variables

Wenliang Fan, Pengchao Yang, Yule Wang, Alfredo H.-S. Ang, Zhengliang Li

The purpose of this paper is to find an accurate, efficient and easy-to-implement point estimate method (PEM) for the statistical moments of random systems.

Sensitivity analysis of DEM prediction for sliding wear by single iron ore particle

Guangming Chen, Dingena L. Schott, Gabriel Lodewijks

Sliding wear is a common phenomenon in the iron ore handling industry. Large-scale handling of iron ore bulk-solids causes a high amount of volume loss from the surfaces of…

Hyperparameter tuning for hidden unit conditional random fields

Eun-Suk Yang, Jong Dae Kim, Chan-Young Park, Hye-Jeong Song, Yu-Seop Kim

In this paper, the problem of a nonlinear model – specifically the hidden unit conditional random fields (HUCRFs) model, which has binary stochastic hidden units between the data…

A novel approach for estimating the magnetization curve of magnetic fluids

Marcin Szczech

Magnetization is one of the most important parameters of magnetic fluids. The shape of the magnetization curve often determines the application of a fluid in a device. On the…

A spherical element subdivision method for the numerical evaluation of nearly singular integrals in 3D BEM

Jianming Zhang, Pan Wang, Chenjun Lu, Yunqiao Dong

The purpose of this paper is to preset a spherical element subdivision method for the numerical evaluation of nearly singular integrals in three-dimensional (3D) boundary element…

An effective members-adding method for truss topology optimization based on principal stress trajectories

Ge Gao, Yaobin Li, Hui Pan, Limin Chen, Zhenyu Liu

The purpose of this paper is to provide an effective members-adding method for truss topology optimization in plastic design.