Engineering Computations: Volume 36 Issue 2

Modelling of ice rubble in the punch shear tests with cohesive 3D discrete element method

Arto Sorsimo, Jaakko Heinonen

This paper aims to simulate a punch shear test of partly consolidated ice ridge keel by using a three-dimensional discrete element method. The authors model the contact forces…

Indoor mobile robot localization in dynamic and cluttered environments using artificial landmarks

Farhad Shamsfakhr, Bahram Sadeghi Bigham, Amirreza Mohammadi

Robot localization in dynamic, cluttered environments is a challenging problem because it is impractical to have enough knowledge to be able to accurately model the robot’s…

A second order numerical method for singularly perturbed delay parabolic partial differential equation

Lolugu Govindarao, Jugal Mohapatra

The purpose of this paper is to provide a robust second-order numerical scheme for singularly perturbed delay parabolic convection–diffusion initial boundary value problem.

A parametric study on the droplet detachment process from the ceiling under the effect of gravity

Jai Manik, Amaresh Dalal, Ganesh Natarajan

The purpose of this paper is to numerically investigate the effect of various parameters such as density ratio, surface wettabilities and Weber number on the droplet dripping and…

Model calibration of locally nonlinear dynamical systems: Extended constitutive relation error with multi-harmonic coefficients

Xiaoyu Hu, Evan Chodora, Saurabh Prabhu, Akshay Gupte, Sez Atamturktur

This paper aims to present an approach for calibrating the numerical models of dynamical systems that have spatially localized nonlinear components. The approach implements the…

Evaluation of gap influence on the dynamic response behavior of pump-turbine runner

Lingyan He, Lingjiu Zhou, Soo-Hwang Ahn, Zhengwei Wang, Yusuke Nakahara, Sadao Kurosawa

The gaps between runner and nearby structures play an important role in the dynamic response of runner, especially for pump-turbines. This paper aims to evaluate the gap influence…

Early fault detection of bearings based on adaptive variational mode decomposition and local tangent space alignment

Ping Ma, Hongli Zhang, Wenhui Fan, Cong Wang

Early fault detection of bearing plays an increasingly important role in the operation of rotating machinery. Based on the properties of early fault signal of bearing, this paper…

A fresh view on particle swarm optimization to develop a precise model for predicting rock fragmentation

Khosro Sayevand, Hossein Arab

The purpose of this paper is to propose a gauge for the convergence of the deterministic particle swarm optimization (PSO) algorithm to obtain an optimum upper bound for PSO…

A numerical method for solving fractional differential equations

Zain ul Abdeen, Mujeeb ur Rehman

The purpose of this paper is to present a computational technique based on Newton–Cotes quadrature rule for solving fractional order differential equation.

A background cell-based numerical integration for B-spline wavelet on the interval finite element method

Shashank Vadlamani, Arun C.O.

The purpose of this paper is to discuss about evaluating the integrals involving B-spline wavelet on the interval (BSWI), in wavelet finite element formulations, using Gauss…

Optimal stable gait for nonlinear uncertain humanoid robot using central force optimization algorithm

Tran Thien Huan, Ho Pham Huy Anh

The purpose of this paper is to design a novel optimized biped robot gait generator which plays an important role in helping the robot to move forward stably. Based on a…

Recent trend in mixed-model assembly line balancing optimization using soft computing approaches

Muhamad Magffierah Razali, Nur Hairunnisa Kamarudin, Mohd Fadzil Faisae Ab. Rashid, Ahmad Nasser Mohd Rose

This paper aims to review and discuss four aspects of mixed-model assembly line balancing (MMALB) problem mainly on the optimization angle. MMALB is a non-deterministic…

Triangular mesh generation on free-form surfaces based on bubble dynamics simulation

Qisheng Wang, Boqing Gao, Hui Wu

Modern CAD systems facilitate the creation of any surface geometry imaginable, and complex surfaces for free-form grid shells are often represented by a set of Non-Uniform…

The whirlpool algorithm based on physical phenomenon for solving optimization problems

Yuanyang Zou

This paper aims to propose a novel nature-inspired optimization algorithm, called whirlpool algorithm (WA), which imitates the physical phenomenon of whirlpool.

Modelling of sand production using a mesoscopic bonded particle lattice Boltzmann method

Min Wang, Y.T. Feng, Ting T. Zhao, Yong Wang

Sand production is a challenging issue during hydrocarbon production in the oil and gas industry. This paper aims to investigate one sand production process, i.e. transient sand…

An analytical solution for consolidation of PVD-installed deposit considering nonlinear distribution of hydraulic conductivity and compressibility

Ba-Phu Nguyen, Yun-Tae Kim

It is well known that the prefabricated vertical drain (PVD) installation process generates a significant soil disturbance around PVD. This disturbed zone significantly affects…