Engineering Computations: Volume 36 Issue 9

Stochastic finite element analysis of rockfill dam considering spatial variability of dam material porosity

Hui Chen, Donghai Liu

The purpose of this study is to develop a stochastic finite element method (FEM) to solve the calculation precision deficiency caused by spatial variability of dam compaction…

Fitting procedure based on Differential Evolution to evaluate impedance parameters of metal–coating systems

Francisco González, David Greiner, Vicente Mena, Ricardo M. Souto, Juan J. Santana, Juan J. Aznárez

Impedance data obtained by electrochemical impedance spectroscopy (EIS) are fitted to a relevant electrical equivalent circuit to evaluate parameters directly related to the…

Fast tolerance-aware design optimization of miniaturized microstrip couplers using variable-fidelity EM simulations and response features

Slawomir Koziel, Adrian Bekasiewicz

This paper aims to investigate the strategy for low-cost yield optimization of miniaturized microstrip couplers using variable-fidelity electromagnetic (EM) simulations.

Polynomials for numerical solutions of space-time fractional differential equations (of the Fokker–Planck type)

Jiao Wang

Fokker–Planck equation appears in various areas in natural science, it is used to describe solute transport and Brownian motion of particles. This paper aims to present an…

Application of agent model in the optimal design of AIG for SCR-DeNOx system

Na Li, Han Wang, Hui Xu, Mingfeng Miao

Ammonia injection grid (AIG) is used as an input device for ammonia which reacts with NO_x in the selective catalytic reduction (SCR) reactor. However, non-uniform concentration…

An exploration-enhanced elephant herding optimization

Islam A. ElShaarawy, Essam H. Houssein, Fatma Helmy Ismail, Aboul Ella Hassanien

The purpose of this paper is to propose an enhanced elephant herding optimization (EEHO) algorithm by improving the exploration phase to overcome the fast-unjustified convergence…

Dynamic analysis of railway with locally continuous supported superstructures

Muzaffer Metin, Arif Ulu, Ozgur Demir, Aytac Arikoglu

In this study, a railway superstructure is modeled with a new approach called locally continuous supporting, and its behavior under the effect of moving load is analyzed by using…

Vehicles distance estimation using detection of vanishing point

Sana Bougharriou, Fayçal Hamdaoui, Abdellatif Mtibaa

This paper aims to study distance determination in vehicles, which could allow an in-car system to provide feedback and alert drivers, by either prompting the driver to take…

Time-varying importance measure of mechanical systems considering maintenance

Yangfan Li, Yingjie Zhang, Lin Zhang, Bochao Dai

The purpose of this paper is to analyze the changes in its importance due to the maintenance and repair of components.

Rapid computation of rotary derivatives for subsonic and low transonic flows

Jian-Ming Fu, Hai-Min Tang, Hong-Quan Chen

The purpose of this paper is to develop a new approach for rapid computation of subsonic and low-transonic rotary derivatives with the available steady solutions obtained by Euler…

Influence of circulating-flow’s geometric characters on energy transition of a vortex pump

Hui Quan, Yi Chai, Rennian Li, Guo-Yi Peng, Ying Guo

Having read previous literature about vortex pump, we noticed that mechanisms of circulating flow and its relationship with energy transition remain unclear yet. However, this…

Application of the particle finite element method for large deformation consolidation analysis

Wei-Hai Yuan, Wei Zhang, Beibing Dai, Yuan Wang

Large deformation problems are frequently encountered in various fields of geotechnical engineering. The particle finite element method (PFEM) has been proven to be a promising…

Influence of airflow dynamics on vortices in the human nasal cavity

Punjan Dohare, Amol P. Bhondekar, Anupma Sharma, C. Ghanshyam

The purpose of this paper is to understand the effect of airflow dynamics on vortices for different flow rates using the human nose three-dimensional model.

3D coupled conduction-convection problem using in-house heat transfer experiments in conjunction with hybrid inverse approach

Vishweshwara P.S., Harsha Kumar M.K., N. Gnanasekaran, Arun M.

Many a times, the information about the boundary heat flux is obtained only through inverse approach by locating the thermocouple or temperature sensor in accessible boundary…