Engineering Computations: Volume 33 Issue 3

Mitigation of the cogging torque and loss minimization in a permanent magnet machine using shape and topology optimization

Piotr Adam Putek

The paper presents the topology optimization method to design the rotor and the tooth base in the stator of the permanent magnet (PM) excited machine with the improved high-speed…

Mechanical design, multiple criteria decision making and Pareto optimality gap

Ignacy Kaliszewski, Tomasz Kiczkowiak, Janusz Miroforidis

We present an approach to multiple criteria mechanical design problems, for cases where problem complexity precludes derivation of the whole Pareto front. For such problems we…

Thermal creep transition stresses and strain rates in a circular disc with shaft having variable density

Dr Pankaj Thakur, Jatinder Kaur, Satya Bir Singh

The purpose of this paper is to present study of thermal creep stresses and strain rates in a circular disc with shaft having variable density by using Seth’s transition theory.

Generalized Finite Element Method in linear and nonlinear structural dynamic analyses

Dorival Piedade Neto, Sergio Persival Baroncini Proenca

The purpose of this study is to evaluate the accuracy and numerical stability of the Generalized Finite Element Method (GFEM) for solving structural dynamic problems.

Derivation of the material models for ultra-high molecular-weight polyethylene fiber-reinforced armor-grade composites with different architectures

Mica Grujicic, Jennifer Snipes, S. Ramaswami, Vasudeva Avuthu, Chian-Fong Yen, Bryan Cheeseman

To overcome the problem of inferior through-the-thickness mechanical properties displayed by armor-grade composites based on 2-D reinforcement architectures, armor-grade…

Hydromagnetic flow of heat absorbing and radiating fluid over exponentially stretching sheet with partial slip and viscous and Joule dissipation

Gauri Shanker Seth, Rohit Sharma, Bidyasagar Kumbhakar, Ali J Chamkha

An investigation of hydromagnetic two dimensional boundary layer flow with heat transfer of a viscous, incompressible, electrically conducting, heat absorbing and optically thick…

A 4-node quadrilateral flat shell element formulated by the shape-free HDF plate and HSF membrane elements

Yan Shang, Song Cen, Chenfeng Li

The purpose of this paper is to propose an efficient low-order quadrilateral flat shell element that possesses all outstanding advantages of novel shape-free plate bending and…

Nonlinear dynamic co-rotational formulation for membrane elements with in-plane drilling rotational degree of freedom

Djamel Boutagouga, Kamel Djeghaba

nonlinear dynamic analysis of triangular and quadrilateral membrane elements with in-plane drilling rotational degree of freedom.

Shear test as calibration experiment for DEM simulations: a sensitivity study

Istvan Keppler, Ferenc Safranyik, Istvan Oldal

The effect of micromechanical parameters on the macromechanical behaviour of granular materials is analysed by using discrete element based model of the standard shear test.

Particle motion around open mixing screws: optimal screw angular velocity

Istvan Keppler, Attila Varga, Istvan Szabo, Laszlo Katai, Laszlo Fenyvesi

The analysis of the effect of screw angular velocity on the mixing efficiency of open mixing screws.

Hydrodynamic mechanism analysis of the pump hump district for a pump-turbine

Yexiang Xiao, Yangyang Yao, Zhengwei Wang, jin zhang, Yongyao Luo, Chongji Zeng, Wei Zhu

Numerically analyzed the flow characteristic and explored the hydrodynamic mechanism of the pump mode hump district formation of a Francis pump-turbine.

Influence of operational parameters on performance of twin thermoacoustic prime mover – CFD studies

Jabbar P, Hariharan N.M, Palani Sivashanmugam, S. Kasthurirengan

The present investigation deals with the analysis of the performance of twin thermoacoustic prime mover (TAPM) which are measured in terms of frequency and pressure amplitude by…

Filtering algorithm for eigenvalue bounds of fuzzy symmetric matrices

Nisha Rani Mahato, Snehashish Chakraverty

The solution of dynamic problems of structures using finite element method leads to generalised eigenvalue problem. In general, if the material properties are crisp (exact) then…

Particle swarm optimization algorithm for suspendome structure under multiple loading cases

Xuechun Liu, Ailin Zhang, Xun Zhang, Chen Tian

The purpose of the paper is to provide an optimization algorithm for a large-span suspendome which is a spatial prestressed structure with complex mechanical characteristics. The…

Computational model for predicting the effect of process parameters on surface characteristics of mass finished components

Venkatesh Vijayaraghavan, Sylvie Castagne

Mass finishing is a commonly employed surface finishing process for improving surface characteristics of aerospace engineering components. Optimization of surface characteristics…

Bi-direction multi-surrogate surrogate assisted global optimization

Hu Wang, Enying Li

For global optimization, an important issue is a trade-off between exploration and exploitation within limited number of evaluations. Efficient Global Optimization (EGO) is an…