Department of Engineering Sciences: Recent submissions
Now showing items 1081-1100 of 1119
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Development of lumped-parameter mathematical models for a vehicle localized impact
(Journal article; Peer reviewed, 2011)In this paper, we propose a method of modeling for vehicle crash systems based on viscous and elastic properties of the materials. This paper covers an influence of different arrangement of spring and damper on the models’ ... -
Robust synchronization and fault detection of uncertain master-slave systems with mixed time-varying delays and nonlinear perturbations
(Journal article; Peer reviewed, 2011)In this paper, the problem of robust synchronization and fault detection for a class of master-slave systems subjected to some nonlinear perturbations and mixed neutral and discrete time-varying delays is investigated based ... -
Mathematical modeling of a vehicle crash test based on elasto-plastic unloading scenarios of spring-mass models
(Journal article; Peer reviewed, 2011)This paper investigates the usability of spring which exhibit nonlinear force-deflection characteristic in the area of mathematical modeling of vehicle crash. We present a method which allows us to obtain parameters of the ... -
Optimised assembly mode reconfiguration of the 5-DOF Gantry-Tau using mixed-integer programming
(Journal article; Peer reviewed, 2011)This paper presents a systematic approach based on Mixed Integer Linear Programming for finding an optimal singularity-free reconfiguration path of the 5-DOF Gantry-Tau parallel kinematic machine. The results in the paper ... -
The Gantry-Tau parallel kinematic machine-kinematic and elastodynamic design optimisation
(Journal article; Peer reviewed, 2011)One of the main advantages of the Gantry-Tau machine is a large accessible workspace/footprint ratio compared to many other parallel machines. The optimal kinematic, elastostatic and elastodynamic design parameters of the ... -
Mean-square filtering for polynomial system states confused with poisson noises over polynomial observations
(Journal article; Peer reviewed, 2011)In this paper, the mean-square filtering problem for polynomial system states confused with white Poisson noises over polynomial observations is studied proceeding from the general expression for the stochastic Ito ... -
Mutual inductance for an explicitly finite number of turns
(Journal article; Peer reviewed, 2011)Non coaxial mutual inductance calculations, based on a Bessel function formulation, are presented for coils modelled by an explicitly finite number of circular turns. The mutual inductance of two such turns can be expressed ... -
MR damper hysteresis characterization for the semi-active suspension system
(Master thesis, 2011)This thesis presents the nonlinear MR brake to a semi active suspension system (e.g. of a vehicle suspension). Semi-active control has recently received considerable attention in some years, because its strong potential ... -
Modeling, design and experimental study for a quadcopter system construction
(Master thesis, 2011)The popularity of quadcopters are increasing as the sensors and control systems are getting more advanced. The quadcopter is naturally unstable, has a complex dynamic model and six degrees of freedom. Even with four ... -
Development of simulation model for virtual testing and design of a riser tensioner system
(Master thesis, 2011)This project contains a study of a wireline riser tensioner system provided by TTS Energy. A mathematical model is derived for both the pneumatic-, hydraulic and the mechanical system. The main motivation for this work ... -
Control design for load reduction on wind turbine system
(Master thesis, 2011)The wind power industry is currently the fastest growing renewable energy sector throughout the world. This requires the technical expertise among engineers and researchers in the wind energy field to find technical solutions ... -
Development of a model-based control system for the Gantry-Tau parallel kinematic machine
(Master thesis, 2011)The purpose of this thesis was to develop a control system for the Gantry-Tau Parallel Kinematic Machine, based in the motion behaviour of the robot, verification stages of the model and testing with an actual prototype. The ... -
New approach to produce special purpose visual aid glasses : a custom designed 5-axis mill
(Master thesis, 2011)The thesis problem formulation is given by the company ProVista. ProVistas area of expertise is mainly the rehabilitation of visually impaired. This includes research, training of opticians and sale of supporting materials ... -
Modeling, simulation, and testing of constant tension system on winch
(Master thesis, 2011)Here we present a dynamical simulation of a hydraulic constant tension [CT] system in SimulationX. The purpose of the simulation is to check the similarity of the simulated system and the real system. The real system is ... -
Design of a heave compensation system with a redundant hydraulic manipulator
(Master thesis, 2011)Waves cause problems when operating in big sea because of their constant movement. Many operations, as moving cargo from ship to ship or from ship to a fixed platform, demands stable working conditions, and this is often ... -
Mathematical modeling of a vehicle crash test based on elasto-plastic unloading scenarios of spring-mass models
(Journal article; Peer reviewed, 2010)This paper investigates the usability of spring which exhibit nonlinear force-deflection characteristic in the area of mathematical modeling of vehicle crash. We present a method which allows us to obtain parameters of the ... -
Developing a Tool Point Control Scheme for a Hydraulic Crane Using Interactive Real-time Dynamic Simulation
(Journal article; Peer reviewed, 2010)This paper describes the implementation of an interactive real-time dynamic simulation model of a hydraulic crane. The user input to the model is given continuously via joystick and output is presented continuously in a ... -
Theoretical and experimental study of friction emulation and compensation
(Master thesis, 2010)This project deals with hydraulics, mechanics, electronics, dynamic modeling and control theory. The focus is on constructing a test rigg in order to to emulate desired friction and compensate for this with a control loop. ... -
Further Results on Mathematical Models of Vehicle Localized Impact
(Chapter; Peer reviewed, 2010)In this paper, we propose a method of modeling for vehicle crash systems based on viscous and elastic properties of the materials. This paper covers an influence of different arrangement of spring and damper on the models? ... -
An LMI approach to quantized H∞ control of uncertain linear systems with network-induced delays
(Chapter; Peer reviewed, 2010)his paper deals with a convex optimization approach to the problem of robust network-based Hinf control for linear systems connected over a common digital communication network with norm-bounded parameter uncertainties. ...