Blar i Scientific Publications in Engineering Sciences på forfatter "Karimi, Hamid Reza"
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Frequency domain control based on quantitative feedback theory for vibration suppression in structures equipped with magnetorheological dampers
Zapateiro, Mauricio; Karimi, Hamid Reza; Luo, Ningsu; Spencer, Billie F Jr (Journal article; Peer reviewed, 2009)This paper addresses the problem of designing quantitative feedback theory (QFT) based controllers for the vibration reduction in a structure equipped with an MR damper. In this way, the controller is designed in the ... -
Further Results on Mathematical Models of Vehicle Localized Impact
Pawlus, Witold; Nielsen, Jan Eivind; Karimi, Hamid Reza; Robbersmyr, Kjell G. (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? ... -
Fuzzy investment portfolio selection models based on interval analysis approach
Guo, Haifeng; Sun, BaiQing; Karimi, Hamid Reza; Ge, Yuanjing; Jin, Weiquan (Journal article; Peer reviewed, 2012)This paper employs fuzzy set theory to solve the unintuitive problem of the Markowitz mean-variance (MV) portfolio model and extend it to a fuzzy investment portfolio selection model. Our model establishes intervals for ... -
Fuzzy modeling and control for a class of inverted pendulum system
Zhang, Liang; Chang, Xiaoheng; Karimi, Hamid Reza (Journal article; Peer reviewed, 2014)Focusing on the issue of nonlinear stability control system about the single-stage inverted pendulum, the T-S fuzzy model is employed. Firstly, linear approximation method would be applied into fuzzy model for the single-stage ... -
Fuzzy reliable tracking control for flexible air-breathing hypersonic vehicles
Hu, Xiaoxiang; Gao, Huijun; Karimi, Hamid Reza; Wu, Ligang; Hu, Changhua (Journal article; Peer reviewed, 2011)In this paper, we present a fuzzy reliable tracking control design method for flexible air-breathing hypersonic vehicles (FAHVs) subject to disturbances and possible sensor/actuator failures. This problem is challenging ... -
Fuzzy sliding mode controller design using Takagi-Sugeno modelled nonlinear systems
Bououden, S.; Chadli, M.; Karimi, Hamid Reza (Journal article; Peer reviewed, 2013)Adaptive fuzzy sliding mode controller for a class of uncertain nonlinear systems is proposed in this paper. The unknown system dynamics and upper bounds of the minimum approximation errors are adaptively updated with ... -
Fuzzy variable structure control for uncertain systems with disturbance
Wang, Bo; Shi, Peng; Karimi, Hamid Reza; Wang, Jun; Song, Yongduan (Journal article; Peer reviewed, 2012)This paper focuses on the fuzzy variable structure control for uncertain systems with disturbance. Specifically, the fuzzy control is introduced to estimate the control disturbance, the switching control is included to ... -
General output feedback stabilization for fractional order systems: An LMI approach
Wei, Yiheng; Karimi, Hamid Reza; Liang, Shu; Gao, Qing; Wang, Yong (Journal article; Peer reviewed, 2014)This paper is concerned with the problem of general output feedback stabilization for fractional order linear time-invariant (FO-LTI) systems with the fractional commensurate order 0 < α < 2. The objective is to design ... -
Global conservative and multipeakon conservative solutions for the modified camassa-holm system with coupling effects
Wen, Huabin; Wang, Yujuan; Song, Yongduan; Karimi, Hamid Reza (Journal article; Peer reviewed, 2014)This paper investigates the continuation of solutions to the modified coupled two-component Camassa-Holm system after wave breaking. The underlying problem is rather challenging due to the mutual coupling effect between ... -
H-infinity control for networked control systems with time delays and packet dropouts
Wang, Yilin; Karimi, Hamid Reza; Xiang, Zhengrong (Journal article; Peer reviewed, 2013)This paper is concerned with the H-infinity control issue for a class of networked control systems (NCSs) with packet dropouts and time-varying delays. Firstly, the addressed NCS is modeled as a Markovian discrete-time ... -
H-Infinity robust controller design for the synchronization of master-slave chaotic systems with disturbance input
Wang, Bo; Shi, Peng; Karimi, Hamid Reza; Wang, Jun (Journal article; Peer reviewed, 2012)This paper is concerned with the robust control problems for the synchronization of master-slave chaotic systems with disturbance input. By constructing a series of Lyapunov functions, novel H1 robust syn- chronization ... -
Hardware-in-the-loop implementation for an active heave compensated drawworks
Muraspahic, Sanin; Gu, Peter; Farji, Lawk; Iskandarani, Yousef; Shi, Peng; Karimi, Hamid Reza (Journal article; Peer reviewed, 2011)This paper presents the setup and running of a hardware-in-loop (HIL) simulation for an active heave compensated (AHC) draw-works. A simulation model of the draw-works is executed on a PC to simulate the AHC draw-works ... -
H∞ control for two-dimensional Markovian jump systems with state-delays and defective mode information
Wei, Yanling; Wang, Mao; Karimi, Hamid Reza; Qiu, Jianbin (Journal article; Peer reviewed, 2013)This paper investigates the problem of H∞ state-feedback control for a class of two-dimensional (2D) discrete-time Markovian jump linear time-delay systems with defective mode information. The mathematical model of the 2D ... -
H∞ control of Markovian switching systems with time-delays: Applied to DC-DC converters
Karimi, Hamid Reza; Shi, Peng (Annual Conference of the IEEE Industrial Electronics Society;37, Chapter; Peer reviewed, 2011)The DC-DC switching power converters are highly nonlinear systems. Consequently, the conventional linear controls based on averaging and linearization techniques will result in poor dynamic performance or system instability. ... -
H∞ filter design for a class of nonlinear neutral systems with time-varying delays
Karimi, Hamid Reza (Journal article; Peer reviewed, 2009)In this note, the problem of H∞ filtering for a class of nonlinear neutral systems with delayed states and outputs is investigated. By introducing a descriptor technique, using Lyapunov-Krasovskii functional and a suitable ... -
H∞ fuzzy control of DC-DC converters with input constraint
Saifia, Dounia; Chadli, Mohammed; Labiod, Salim; Karimi, Hamid Reza (Journal article; Peer reviewed, 2012)This paper proposes a method for designing H∞ fuzzy control of DC-DC converters under actuator saturation. Because linear control design methods do not take into account the nonlinearity of the system, a T-S fuzzy model ... -
H∞ model reduction for discrete-time Markovian jump systems with deficient mode information
Wei, Yanling; Wang, Mao; Karimi, Hamid Reza; Wang, Nan; Qiu, Jianbin (Journal article; Peer reviewed, 2013)This paper investigates the problem of H∞ model reduction for a class of discrete-time Markovian jump linear systems (MJLSs) with deficient mode information, which simultaneously involves the exactly known, partially ... -
Identification of lti time-delay systems with missing output data using GEM algorithm
Yang, Xianqiang; Karimi, Hamid Reza (Journal article; Peer reviewed, 2014)This paper considers the parameter estimation for linear time-invariant (LTI) systems in an input-output setting with output error (OE) time-delay model structure. The problem of missing data is commonly experienced in ... -
Improved switching strategy for selective harmonic elimination in DC-AC signal generation via pulse-width modulation
Palacios-Quiñonero, Francisco; Vicente-Rodrigo, Jesus; Molina-Hernández, Maria A.; Karimi, Hamid Reza (Journal article; Peer reviewed, 2013)We present an advanced design methodology for pulse-width-modulated (PWM) DC-AC signal generation. Using design methods based on the Walsh transform, AC sinusoidal signals can be approximated by suitable PWM signals. For ... -
Improving performance of evolutionary algorithms with application to fuzzy control of truck backer-upper system
Alipouri, Yousef; Ahmadizadeh, Saeed; Karimi, Hamid Reza; Vahid Naghavi, S.; Sarvestani, Ahad Soltani (Journal article; Peer reviewed, 2013)We propose a method to improve the performance of evolutionary algorithms (EA). The proposed approach defines operators which can modify the performance of EA, including Levy distribution function as a strategy parameters ...