Engineering Computations: Volume 34 Issue 4

Fatigue crack growth prediction of 7075 aluminum alloy based on the GMSVR model optimized by the artificial bee colony algorithm

Dalian Yang, Yilun Liu, Songbai Li, Jie Tao, Chi Liu, Jiuhuo Yi

The aim of this paper is to solve the problem of low accuracy of traditional fatigue crack growth (FCG) prediction methods.

Pressure fluctuation characteristics in the sidewall gaps of a centrifugal dredging pump

Lei Cao, Yexiang Xiao, Zhengwei Wang, Yongyao Luo, Xiaoran Zhao

The purpose of this paper is to study the pressure fluctuation characteristics in the sidewall gaps of a centrifugal dredging pump in detail and discover the excitation sources.

Patch size setup and performance/cost trade-offs in multi-objective EM-driven antenna optimization using sequential domain patching

Slawomir Koziel, Adrian Bekasiewicz

This paper aims to assess control parameter setup and its effect on computational cost and performance of deterministic procedures for multi-objective design optimization of…

Uncertainty quantification/propagation in nonlinear models: Robust reduction – generalized polynomial chaos

Khaoula Chikhaoui, Noureddine Bouhaddi, Najib Kacem, Mohamed Guedri, Mohamed Soula

The purpose of this paper is to develop robust metamodels, which allow propagating parametric uncertainties, in the presence of localized nonlinearities, with reduced cost and…

A tensor-based modelling and simulation method for multibody system

Fan Shen, Siyuan Rong, Naigang Cui, Xianren Kong

The purpose of this paper is to provide a method with convenient modelling as well as precise computation to the research of complex multi-body system, such as robot arms and…

Large-deformation finite element analysis of the interaction between concrete cut-off walls and high-plasticity clay in an earth core dam

Xiang Yu, Degao Zou, Xianjing Kong, Long Yu

A large, uneven settlement that is unfavourable to dam safety can occur between a concrete cut-off wall and the high-plasticity clay of earth core dam built on alluviums. This…

Numerical simulations for the fluid-thermal-structural interaction lubrication in a tilting pad thrust bearing

Liming Zhai, Yongyao Luo, Xin Liu, Funan Chen, Yexiang Xiao, Zhengwei Wang

The purpose of this paper is to analyze lubrication characteristics of a tilting pad thrust bearing considering the effect of the thermal elastic deformation of the pad and collar.

Interface modelling between CFD and FEM analysis: the dual-layer post-processing model

Daphne Pantousa, Euripidis Mistakidis

The primary purpose of this paper is the development of a fire–structure interface (FSI) model, which is referred in this study as a simplified “dual-layer” model. It is oriented…

Application of computational fluid dynamics to predict hydrodynamic downpull on high head gates

Mete Koken, Ismail Aydin, Akis Sahin

High head gates are commonly used in hydropower plants for flow regulation and emergence closure. Hydrodynamic downpull can be a critical parameter in design of the lifting…

Fast computation of accurate sphere-cube intersection volume

Bruce D. Jones, John R. Williams

Volume mapping of large spherical particles to a Cartesian grid with smaller grid elements is typically required in application of simple immersed boundary conditions in coupled…

Computationally efficient algorithm for vision-based simultaneous localization and mapping of mobile robots

Chen-Chien Hsu, Cheng-Kai Yang, Yi-Hsing Chien, Yin-Tien Wang, Wei-Yen Wang, Chiang-Heng Chien

FastSLAM is a popular method to solve the problem of simultaneous localization and mapping (SLAM). However, when the number of landmarks present in real environments increases…

Dynamic stability of viscoelastic plates under axial flow by differential quadrature method

Mouafo Teifouet Armand Robinson, Sarp Adali

Cantilever plates subject to axial flow can lose stability by flutter and properties such as viscoelasticity and laminar friction affect dynamic stability. The purpose of the…

A numerical algorithm based on modified cubic trigonometric B-spline functions for computational modelling of hyperbolic-type wave equations

Ali Saleh Alshomrani, Sapna Pandit, Abdullah K. Alzahrani, Metib Said Alghamdi, Ram Jiwari

The main purpose of this work is the development of a numerical algorithm based on modified cubic trigonometric B-spline functions for computational modelling of hyperbolic-type…

An adaptive methodology for multi-GPU programming in OpenCL

Andre Luis Cavalcanti Bueno, Noemi de La Rocque Rodriguez, Elisa Dominguez Sotelino

The purpose of this work is to present a methodology that harnesses the computational power of multiple graphics processing units (GPUs) and hides the complexities of tuning GPU…

Quadrature element method for vibration analysis of functionally graded beams

Chunhua Jin, Xinwei Wang

The purpose of this paper is to present a general formulation of the quadrature element method (QEM). The method is then used to investigate the free vibration of functionally…

Applications of the symplectic method in quasi-static analysis for viscoelastic functionally graded materials

W.X. Zhang, R.G. Liu, Y. Bai

For general quasi-static problems of viscoelastic functionally graded materials (VFGMs), the correspondence principle can be applied only for simple structures with a closed form…