Yazar "Akçay, Hüseyin" için listeleme
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Active suspension design based on linear-matrix inequalities and fixed-order controllers
Türkay, Semiha; Akçay, Hüseyin (2011)In this paper, influence of tire damping on multi-objective control of quarter-car suspensions excited by random road disturbances is studied. The active suspension design problem is first formulated as a mixed H 2/? ... -
Active suspension design for an idealized truck cabin
Akçay, Hüseyin; Türkay, Semiha (Institute of Electrical and Electronics Engineers Inc., 2014)In this paper, a prototype three-degree-of-freedom cabin model for a commercial truck is derived to study ride motions of the cabin under random road excitations. An active suspension system is designed using the ... -
An analysis of transformer excitation current under nonsinusoidal supply voltage
Ece, Doğan Gökhan; Akçay, Hüseyin (IEEE-Inst Electrical Electronics Engineers Inc, 2002)In this paper, the effect of nonsinusoidal supply voltage on the core loss and the transformer excitation current is investigated. The time-domain waveform of the transformer excitation current is calculated for a worst-case ... -
Aspects of achievable performance for quarter-car active suspensions
Türkay, Semilla; Akçay, Hüseyin (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 ... -
Central and projection algorithms in identification with periodic set membership inputs
At, Nuray; Akçay, Hüseyin (IEEE, 2004)In this paper, we study the central and the projection algorithms in set membership identification with periodic input signals for the case that the number of the estimated parameters equals the input period. First, we ... -
Central and projection algorithms in set membership identification with periodic inputs
At, Nuray; Akçay, Hüseyin (2004)In this paper, we study the central and the projection algorithms in set membership identification with periodic input signals for the case that the number of the estimated parameters equals the input period. First, we ... -
Continuous-time stable and unstable system modelling with orthonormal basis functions
Akçay, Hüseyin (John Wiley & Sons LTD, 2000)In this paper, model sets for linear time-invariant continuous-time systems which are spanned by fixed-pole orthonormal bases are investigated. The obtained model sets are shown to be complete in the Lebesque spaces L-p ... -
Convergence analysis of central and minimax algorithms in scalar regressor models
Akçay, Hüseyin; At, Nuray (Springer London LTD, 2006)In this paper, the estimation of a scalar parameter is considered with given lower and upper bounds of the scalar regressor. We derive non-asymptotic, lower and upper bounds on the convergence rates of the parameter estimate ... -
Cramer-Rao Bounds for Road Profile Estimation
Akçay, Hüseyin; Türkay, Semiha (IEEE, 2017)In this paper, we study estimator accuracy in road profile identification. We derive a Cramer-Rao lower bound on the variances of all unbiased waviness parameter estimators for an ISO 8608 road profile, widely used in ... -
Discrete-time system modelling in Lp with orthonormal basis functions
Akçay, Hüseyin (Elsevier, 2000)In this paper, model sets for linear time-invariant systems spanned by fixed pole orthonormal bases are investigated. The obtained model sets are shown to be complete in Lp(T) (1 < p < ?), the Lebesque spaces of ... -
Discussion on: "Generalized linear dynamic factor models: An approach via singular autoregressions"
Akçay, Hüseyin (Lavoisier, 2010)[No abstract available] -
Discussion on: "Multivariable control of noise in an acoustic duct"
Akçay, Hüseyin (Lavoisier, 2004)… -
Effect of tire damping on the ride performance potential of active suspension systems
Türkay, Semiha; Akçay, Hüseyin (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 ... -
Estimation of cross-power and auto-power spectral densities in frequency domain by subspace methods
Akçay, Hüseyin (IEEE, 2012)In this paper, frequency-domain subspace-based algorithms are proposed to estimate discrete-time cross-power spectral density (cross-PSD) and auto-power spectral density (auto-PSD) matrices of vector auto-regressive ... -
Fixed-Order Controller Design for a High Speed Railway Vehicle
Turkey, Semiha; Leblebici, Aslı S.; Akçay, Hüseyin (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. ... -
Fourier series ve altuzay-tabanlı tanıyım yöntemleri ile yol kestirimi
Türkay, Semiha (Anadolu Üniversitesi, 2003)Bu tezde, spektral çarpımıara ayırma yönteminin yol spektrumlarının kestirimi için uygulanabilirliği araştırıldı. Düzgün aralıklı olmayan spektrum ölçümleri kullanılarak çok-girdili/çok-çıktılı, doğrusal-zamandan bağımsız ... -
Frekans bağımlı transformatör
Erşahan, Salih (Anadolu Üniversitesi, 2001)Bu çalışmada enerji iletim ve dağıtım sistemlerinde önemli bir yeri olan güç transformatörlerindeki arızaların tanımlanması ve bulunması için kullanılan frekans analizi testi için bir transformatör modeli oluşturulmuştur. ... -
Frequency domain analysis of model order reduction techniques
Cünedioğlu, Y; Mugan, A; Akçay, Hüseyin (Elsevier Science BV, 2006)In this Study, some popular model order reduction and superelement techniques are studied in frequency and time domains. Frequency domain identification (FDI) methods are also applied to semidiscrete finite element equations ... -
Frequency domain subispace-based identification of discrete-time power spectra from nonuniformly spaced measurements
Akçay, Hüseyin; Türkay, Semiha (Pergamon-Elsevier Science LTD, 2004)In this paper, we present a new subspace-based algorithm for the identification of multi-input/multi-output, square, discrete-time, linear-time invariant systems from nonuniformly spaced power spectrum measurements. The ...
