Engineering Computations: Volume 36 Issue 3

Reproducing kernel mesh-free collocation analysis of structural vibrations

Dongliang Qi, Dongdong Wang, Like Deng, Xiaolan Xu, Cheng-Tang Wu

Although high-order smooth reproducing kernel mesh-free approximation enables the analysis of structural vibrations in an efficient collocation formulation, there is still a lack…

Characteristics extraction and numerical analysis of the rough surface macro-morphology

Qingchao Sun, Xiaokai Mu, Bo Yuan, Jiawen Xu, Wei Sun

This paper aims to distinguish the relationship between the morphology characteristics of different scales and the contact performance of the mating surfaces. Also, an integrated…

Differentiated Cournot duopoly game with fractional-order and its discretization

A. Al-khedhairi

Fractional calculus provides powerful tool to build more realistic and accurate mathematical models in economic field. This paper aims to explore a proposed fractional-order…

Estimation of equivalent permeability tensor for fractured porous rock masses using a coupled RPIM-FEM method

Wei Zhang, Peitong Cong, Kang Bian, Wei-Hai Yuan, Xichun Jia

Understanding the fluid flow through rock masses, which commonly consist of rock matrix and fractures, is a fundamental issue in many application areas of rock engineering. As the…

A lower confidence bounding approach based on the coefficient of variation for expensive global design optimization

Ji Cheng, Ping Jiang, Qi Zhou, Jiexiang Hu, Tao Yu, Leshi Shu, Xinyu Shao

Engineering design optimization involving computational simulations is usually a time-consuming, even computationally prohibitive process. To relieve the computational burden, the…

Numerical simulation of water hammer in multi-level intake hydropower station considering the impact of intake

Yuan Ding, TongChun Li, LanHao Zhao, MinZhe Zhou, ChaoNing Lin

Multi-level intake structures are used to take the surface water of reservoirs. The changed boundary conditions will certainly make the water hammer phenomenon more complicated…

New machine learning prediction models for compressive strength of concrete modified with glass cullet

Mohammadreza Mirzahosseini, Pengcheng Jiao, Kaveh Barri, Kyle A. Riding, Amir H. Alavi

Recycled waste glasses have been widely used in Portland cement and concrete as aggregate or supplementary cementitious material. Compressive strength is one of the most important…

Parallel fast-neighbor-searching and communication strategy for particle-based methods

Lin Fu, Zhe Ji, Xiangyu Y. Hu, Nikolaus A. Adams

This paper aims to develop a parallel fast neighbor search method and communication strategy for particle-based methods with adaptive smoothing-length on distributed-memory…

A new high accuracy cubic spline method based on half-step discretization for the system of 1D non-linear wave equations

Ranjan Kumar Mohanty, Gunjan Khurana

This paper aims to develop a new 3-level implicit numerical method of order 2 in time and 4 in space based on half-step cubic polynomial approximations for the solution of 1D…

Dynamic response analysis on vibration of ground and track system induced by metro operation

Zhi Ding, Danwei Li

This paper aims to evaluate the dynamic response of surrounding foundation and study the vibration characteristics of track system.

Uncertainty-based design optimization of NLF airfoil for high altitude long endurance unmanned air vehicles

Huan Zhao, Zhenghong Gao

The high probability of the occurrence of separation bubbles or shocks and early transition to turbulence on surfaces of airfoil makes it very difficult to design high-lift and…

The multi-objective optimization of a non-pneumatic wheel based on its life prediction

Zhen Xiao, Youqun Zhao, Fen Lin, Mingmin Zhu, Yaoji Deng, Liguo Zang

A novel non-pneumatic safety tire, namely mechanical elastic wheel (ME-Wheel), has been developed recently to solve problems, including tire bursting and flat tire, of typical…

Multiple-relaxation-time lattice Boltzmann simulation for adsorption processes of carbon dioxide in a fixed-bed

ZhenYu Qiu, Qiang Ma, Ying Zhang, Yiwu Yi

This paper aims to discuss the dynamic adsorption processes of carbon dioxide in a porous fixed bed on the industrial scale, using a multiple-relaxation-time lattice Boltzmann…

Nanoparticles migration near liquid-liquid interfaces using diffuse interface model

Ali Daher, Amine Ammar, Abbas Hijazi

The purpose of this paper is to develop a numerical model for the simulation of the dynamics of nanoparticles (NPs) at liquid–liquid interfaces. Two cases have been studied, NPs…

Application of a new local effective constrained response surface method in structural reliability optimization design

Hailiang Su, Fengchong Lan, Yuyan He, Jiqing Chen

Meta-model method has been widely used in structural reliability optimization design. The main limitation of this method is that it is difficult to quantify the error caused by…