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Browsing 09 Engineering by Title

Now showing items 1516-1535 of 2363

Nonlinear Dynamics of Magnetic Bearing Systems

Ji Jin; Hansen Colin; Zander A.C. (Sage Publications Ltd., 2008)

Magnetic bearings use magnetic forces to support various machine components. Because of the non-contact nature of this type of suspension, magnetic bearing technology offers a number of significant advantages over conventional ...
Non-linear Elastic Analysis of Composite Beams Curved In-plan

Erkmen Recep; Bradford Mark (Elsevier, 2009)

A novel 3D elastic total Lagrangian formulation is developed for the numerical analysis of steel¿concrete composite beams which are curved in-plan. Geometric nonlinearities are considered in the derivation of the strain ...
Non-linear Elasto-dynamic analysis of I-beams curved in-plan

Erkmen Recep; Bradford Mark (World Scientific Publishing Co, 2009)

The elastic response of curved beams subjected to moving vertical loads and dynamic loads is investigated. Incremental dynamic equilibrium equations are derived by using the principle of virtual work. Newmarkâ¿¿s step-by-step ...
Nonlinear Filtering For Continuous-Time Systems Using The Linear Fractional Transformation Model

Pasha Syed; Hoang Tuan (IEEE, 2009)

In this paper, we propose Bayesian filtering technique for continuous-time dynamical models with sampled-data measurements using the linear fractional transformation (LFT) model which transforms the nonlinear state space ...
Nonlinear Filtering For The Linear Fractional Transformation Model

Pasha Syed; Hoang Tuan (IEEE, 2008)

In gain-scheduling control the linear fractional transformation (LIFT) model is applied extensively to describe nonlinear plants. The equivalent representation of the nonlinear state space model by a linear model and a ...
Non-linear Inductances of a Premanent Magnet Linear Motor

Zhu Jianguo; Lu Haiwei; Guo Youguang (Victoria University, 2006)

The inductances of an electric machine are those of the most important parameters for the system modelling, performance simulation and controller design. In addition, the variations of the winding inductances, which ...
Nonlinear Inelastic Dynamic Analysis of I-Beams Curved In-Plan

Erkmen Recep; Bradford Mark (American Society of Civil Engineers, 2011)

This paper presents a finite-element formulation for the dynamic analysis of I-beams curved in-plan, in which geometric nonlinearities owing to large deflections and inelastic material behavior are taken into account. The ...
Non-linear in-plane buckling of rotationally restrained shallow arches under a central concentrated load

Pi Yong Lin; Bradford Mark; Tin-Loi F (Pergamon-Elsevier Science Ltd, 2008)

This paper investigates the non-linear in-plane buckling of pin-ended shallow circular arches with elastic end rotational restraints under a central concentrated load. A virtual work method is used to establish both the ...
Nonlinear Modeling and Control of Human Heart Rate Response During Exercise With Various Work Load Intensities

Cheng Teddy; Savkin Andrey; Celler Branko; Su Steven; Wang Lu (IEEE-Inst Electrical Electronics Engineers Inc, 2008)

The first objective of this paper is to introduce a nonlinear system to model the heart rate (HR) response during and after treadmill walking exercise. The model is a feedback interconnected system that has components to ...
Nonlinear modeling of cardiovascular response to exercise

Wang Lu; Su Steven; Chan Gregory; Celler Branko; Cheng Teddy; Savkin Andrey (Institute for Systems and Technologies of Information, 2008)
Nonlinear modelling and control of heart rate response to treadmill walking exercise

Cheng Teddy; Savkin Andrey; Celler Branko; Su Steven; Wang Lu (Institute for Systems and Technologies of Information, 2008)

In this study, a nonlinear system was developed for the modelling of the heart rate response to treadmill walking exercise. The model is a feedback interconnected system which can represent the neural response and peripheral ...
Non-linear normal modes and their bifurcation of a two DOF system with quadratic and cubic nonlinearity

Li X.Y.; Ji Jin; Hansen Colin (Pergamon-Elsevier Science Ltd, 2006)

The non-linear normal modes (NNMs) and their bifurcation of a complex two DOF system are investigated systematically in this paper. The coupling and ground springs have both quadratic and cubic non-linearity simultaneously. ...
Nonlinear reinforced concrete frame element with torsion

Valipour Goudarzi Hamid Reza; Foster Steven (Pergamon - Elsevier Ltd., 2010)

In this paper an element for nonlinear analysis of reinforced concrete framed structures subjected to torsion is developed using a force-based formulation. The interaction between the axial force and bending moment is taken ...
Nonlinear static and cyclic analysis of concrete-filled steel columns

Valipour Goudarzi Hamid Reza; Foster Steven (Elsevier Ltd., 2009)

This paper presents the formulation of a one-dimensional (1D) composite frame element for the nonlinear static and cyclic analysis of concrete-filled steel (CFS) beamâ¿¿columns. A two-node frame element is formulated using ...
Nonlinear Thermoelastic Buckling of Pin-Ended Shallow Arches under Temperature Gradient

Pi Yong Lin; Bradford Mark (Asce-Amer Soc Civil Engineers, 2010)

This paper presents a nonlinear thermal buckling analysis of circular shallow pin-ended arches that are subjected to a linear temperature gradient field in the plane of curvature of the arch. The linear temperature gradient ...
Nonlinear Three-Dimensional Elasto-Plastic Analysis of Slender Steel Arches

Pi Yong Lin; Bradford Mark; Qu Weilian (Civil-Comp Press, 2010)

This paper aims to develop an elasto-plastic spatially curved-beam element for the three dimensional nonlinear elasto-plastic analysis of slender steel arches. An exact rotation matrix for three dimensional deformations ...
Nonlocal Damage Formulation for a Flexibility-Based Frame Element

Valipour Goudarzi Hamid Reza; Foster Steven (American Society of Civil Engineers - ASCE, 2009)

This paper presents the formulation for a novel flexibility-based one-dimensional 1D finite element that captures material and structural softening within a reinforced concrete framed structure. Separating the total ...
Nonorthogonal solution for thin-walled members - a finite element formulation

Erkmen Recep; Mohareb Magdi (Natl Research Council Canada, 2006)

Conventional solutions for the equations of equilibrium based on the well-known Vlasov thin-walled beam theory uncouple the equations by adopting orthogonal coordinate systems. Although this technique considerably simplifies ...
Nonorthogonal solution for thin-walled members - applications and modelling considerations

Erkmen Recep; Mohareb Magdi (Natl Research Council Canada, 2006)

):In a companion paper (R.E. Erkmen and M. Mohareb. 2006. Canadian Journal of Civil Engineering, 33: 421¿439.), three finite elements based on the Vlasov thin-walled beam theory were formulated using a nonorthogonal ...
Nonparametric Hammerstein Model Based Model Predictive Control for Heart Rate Regulation

Su Steven; Huang Shoudong; Wang Lu; Celler Branko; Savkin Andrey; Guo Ying; Cheng Teddy (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2007)

This paper proposed a novel nonparametric model based model predictive control approach for the regulation of heart rate during treadmill exercise. As the model structure of human cardiovascular system is often hard to ...

Now showing items 1516-1535 of 2363

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