Engineering Computations: Volume 33 Issue 7

Assimilation-accommodation mixed continuous ant colony optimization for fuzzy system design

Chi-Chung Chen, Li Ping Shen, Chien-Feng Huang, Bao-Rong Chang

The purpose of this paper is to propose a new population-based metaheuristic optimization algorithm, assimilation-accommodation mixed continuous ant colony optimization (ACACO)…

Springback analysis of channel cross-sectioned bar of work-hardening materials under torsional loading

Radha Krishna Lal, Vikas Kumar Choubey, J.P. Dwivedi, V.P. Singh

The purpose of this paper is to deal with the springback problems of channel cross-section bars of linear and non-linear work-hardening materials under torsional loading. Using…

A non-locking composite tetrahedron element for the combined finite discrete element method

Zhou Lei, Esteban Rougier, Earl E. Knight, Luke Frash, James William Carey, Hari Viswanathan

In order to avoid the problem of volumetric locking often encountered when using constant strain tetrahedral finite elements, the purpose of this paper is to present a new…

Simulation on polytropic process of air springs

Xuebing Li, Yintao Wei, Yuan He

The purpose of this paper is to propose a method to simulate the polytropic process of air springs.

Simulation and detection of small crack-like surface flaws and slots in simply-supported beams using curvature analysis of analytical and numerical modal displacement data

Hassan Samami, S. Olutunde Oyadiji

The purpose of this paper is to employ analytical and numerical techniques to generate modal displacement data of damaged beams containing very small crack-like surface flaws or…

Rapid design optimization of antennas using variable-fidelity EM models and adjoint sensitivities

Slawomir Koziel, Adrian Bekasiewicz

Development of techniques for expedited design optimization of complex and numerically expensive electromagnetic (EM) simulation models of antenna structures validated both…

ANN based investigations of reliabilities of the models for concrete under triaxial compression

Ertekin Öztekin

A lot of triaxial compressive models for different concrete types and different concrete strength classes were proposed to be used in structural analyses. The existence of so many…

Dynamic analysis of concrete gravity dam-reservoir systems by approximate wavenumber approach

Seyed Iman Zare Estakhraji, Vahid Lotfi

Recently, the original Wavenumber approach was introduced for dynamic analysis of dam-reservoir systems in frequency domain in the context of pure finite element programming. But…

Towards an efficient method of predicting vehicle-induced response of bridge

Zhen Sun, Zilong Zou

The purpose of this paper is to present a practical and efficient iterative method for predicting vehicle-induced response of bridge.

Tangential inlet cyclone separators with low solid loading: Design by means of 3D fluid dynamic optimization

Riccardo Amirante, Paolo Tamburrano

The purpose of this paper is to propose an effective methodology for the industrial design of tangential inlet cyclone separators that is based on the fully three-dimensional (3D…

Soret and Dufour effects on double diffusive mixed convection of Newtonian and shear-thinning fluids in a two sided lid-driven cavity

Gholamreza Kefayati

The thermal-diffusion (Soret) and the diffusion-thermo (Dufour) effects play a crucial role in double diffusive mixed convection in a lid-driven cavity; but they have not been…

A Fortran implementation of isogeometric analysis for thin plate problems with the penalty method

Feng Chang, Weiqiang Wang, Yan Liu, Yanpeng Qu

As one of the earliest high-level programming languages, Fortran with easy accessibility and computational efficiency is widely used in the engineering field. The purpose of this…

A parameterized lower confidence bounding scheme for adaptive metamodel-based design optimization

Jun Zheng, Zilong Li, Liang Gao, Guosheng Jiang

The purpose of this paper is to efficiently use as few sample points as possible to get a sufficiently explored design space and an accurate optimum for adaptive metamodel-based…

A computer-aided articulation learning system for subjects with articulation disorders

Yeou-Jiunn Chen, Jiunn-Liang Wu

Articulation errors substantially reduce speech intelligibility and the ease of spoken communication. Moreover, the articulation learning process that speech-language pathologists…

A secure mobile group buying system based on the concept of spontaneity

Chin-Ling Chen, Yong-Yuan Deng

The purpose of this paper is to propose a secure mobile group-buying system for application on spontaneous group-buying websites.

A multi-level refinement adaptive scheme with high efficiency and accuracy

Chensen Ding, Xiangyang Cui, Chong Li, Guangyao Li, Guoping Wang

Traditional adaptive analysis based on a coarse mesh, using finite element method (FEM) analysis, produces the original solution. Then post-processing the result and figuring out…