Güncel Gönderiler: Fakülteler
Toplam kayıt 10075, listelenen: 2261-2280
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Rail Track Modelling by Using Identification and Curve Fitting Techniques
(IEEE, 2018)In this paper, a seventeen-degree-of-freedom full-car model of a high speed railway vehicle excited by real track profile is going to be studied. The field measurements are collected by Turkish State Railways (TCDD) on a ... -
Spectral Modeling of Longitudinal Road Profiles
(IEEE, 2015)In this paper, for a quarter-car model, we derive covariance expressions for the MIRA spectrum and calculate the root-mean square outputs for the ISO 8608 classified roads. The derived results are compared with existing ... -
Stochastic Models for Parallel Road Tracks
(IEEE, 2016)In this paper, we propose a method for constructing road roughness on parallel tracks. This method uses empirical power spectral densities and coherence of the left and the right-tracks estimated by non-parametric methods. ... -
Aspects of achievable performance for quarter-car active suspensions
(Academic Press LTD- Elsevier Science LTD, 2008)In this paper, constraints on the transfer functions from the road disturbance to the vertical acceleration, the suspension travel, and the tire deflection are derived for a quarter-car active suspension system using the ... -
Circular Uncertainty method for range-only localization with imprecise sensor positions
(Springer, 2018)This study provides an effective new method to solve the range-only localization in the presence of sensor position errors. In practice, the sensors can stay only within a limited region whereas the target can be far from ... -
A geometrical closed form solution for RSS based far-field localization: Direction of Exponent Uncertainty
(Springer, 2019)In this study, a new powerful geometrical closed-form solution called Direction of Exponent Uncertainty (DEU) is proposed for received signal strength (RSS) based far-field localization when path loss exponent (PLE) and ... -
Fixed-Order Controller Design for a High Speed Railway Vehicle
(Amer Soc Mechanical Engineers, 2017)Advanced active suspension systems has attracted considerable attention in modern railway vehicle designs in recent years. The purpose of the suspension is to attenuate the vehicle vibrations due to various rail excitations. ... -
A Survey on the Fundamentals of RSS based Localization
(IEEE, 2016)In this research, for RSS based localization, geometry based new heuristic solutions are proposed and compared to maximum likelihood estimation (MLE) in terms of performance. It is shown that new heuristic methods which ... -
RSS Based Direction Finding via Array of Directional Antennas with Normal Density Distribution in Magnitude
(IEEE, 2017)In this study, the theoretical framework of received signal strength (RSS) based direction finding with array of directional antennas with normal density distribution in magnitude are established. Directional antenna systems ... -
Utilization of non-causal uncertainty blocks in the robust flow controller design problem for data-communication networks
(IEEE, 2008)Robust How controller design problem for data-communication networks with multiple uncertain time-delays is considered. A recent result on the validity of the small gain theorem for systems with non-causal subsystems is ... -
Modelling of road roughness for full-car models: a spectral factorization approach
(IEEE, 2016)In this paper, we study modelling of road roughness for full-car models from power spectrum and coherence measurements of parallel tracks. The modelling problem is cast as a spectral factorization problem and solved via ... -
Multi-objective control of a full-car model using linear-matrix-inequalities and fixed-order optimisation
(Taylor & Francis LTD, 2014)This paper studies multi-objective control of a full-vehicle suspension excited by random road disturbances. The control problem is first formulated as a mixed H-2/H synthesis problem and an output-feedback solution is ... -
Road Roughness Evaluation by Curve-Fitting and Subspace-Identification Methods
(Asce-Amer Soc Civil Engineers, 2016)In this paper, for a quarter-car model, root-mean square response variables are calculated for roads classified by the international standard organization, based on the straight-line spectrum models. Covariance expressions ... -
Road Roughness Modelling by Using Spectral Factorization Methods
(IEEE, 2016)In this paper, road roughness model for the right and the left tracks are constructed by utilizing two methods. In the first method, from time-domain measurements the empirical auto and cross-power spectral densities of ... -
Influence of Tire Damping on the H-2 Optimally Designed Half-Car Active Suspensions
(IEEE, 2008)In this paper, the rms responses of the heave and pitch accelerations, the suspension travels, and the tire deflections of a half-car model excited by random road inputs are studied. The road excitation at the front wheel ... -
Influence of tire damping on the ride performance potential of quarter-car active suspensions
(IEEE, 2008)In this paper, performance limitations are studied for a quarter-car active suspension system excited by sinusoidal or random road disturbances. It is demonstrated that the influence of tire damping on the closed-loop ... -
Tire Damping Effect on H-2 Optimal Control of Half-Car Active Suspensions
(Asme-Amer Soc Mechanical Eng, 2010)In this note the root-mean-square response of a half-car model following a random road profile is studied. Road excitation at the front wheel is modeled by a first-order linear shape filter driven by white-noise and the ... -
Effect of tire damping on the ride performance potential of active suspension systems
(IEEE, 2007)In this paper, constraints on the transfer functions from the road disturbance to the vertical acceleration, the suspension travel, and the tire deflection are derived for a quarter-car active suspension system using the ... -
Greedy Search for Descriptive Spatial Face Features
(IEEE, 2017)Facial expression recognition methods use a combination of geometric and appearance-based features. Spatial features are derived from displacements of facial landmarks, and carry geometric information. These features are ... -
Multi-Objective Design for Half-Car Active Suspensions
(IEEE, 2012)In this paper, multi-objective control of a half-car suspension system is formulated as a mixed H-2/H-infinity synthesis problem and this convex problem is solved using linear matrix inequalities. Then, the control design ...