Department of Engineering Sciences: Recent submissions
Now showing items 1021-1040 of 1119
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Robust observer design for Takagi-Sugeno fuzzy systems with mixed neutral and discrete delays and unknown inputs
(Journal article; Peer reviewed, 2012)A robust observer design is proposed for Takagi-Sugeno fuzzy neutral models with unknown inputs. The model consists of a mixed neutral and discrete delay, and the disturbances are imposed on both state and output signals. ... -
Fuzzy variable structure control for uncertain systems with disturbance
(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 ... -
Data-driven adaptive observer for fault diagnosis
(Journal article; Peer reviewed, 2012)This paper presents an approach for data-driven design of fault diagnosis system. The proposed fault diagnosis scheme consists of an adaptive residual generator and a bank of isolation observers, whose parameters are ... -
Structural vibration control for a class of connected multistructure mechanical systems
(Journal article; Peer reviewed, 2012)A mathematical model to compute the overall vibrational response of connected multistructure mechanical systems is presented. Using the proposed model, structural vibration control strategies for seismic protection of ... -
H∞ fuzzy control of DC-DC converters with input constraint
(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 ... -
Fuzzy investment portfolio selection models based on interval analysis approach
(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 ... -
A novel evaluation model for hybrid power system based on vague set and Dempster-Shafer evidence theory
(Journal article; Peer reviewed, 2012)Because clean energy and traditional energy have different advantages and disadvantages, it is of great significance to evaluate comprehensive benefits for hybrid power systems. Based on thorough analysis of important ... -
Robust H∞ dynamic output feedback control synthesis with pole placement constraints for offshore wind turbine systems
(Journal article; Peer reviewed, 2012)The problem of robust ∞ dynamic output feedback control design with pole placement constraints is studied for a linear parameter-varying model of a floating wind turbine. A nonlinear model is obtained and linearized using ... -
A novel identification method for generalized T-S fuzzy systems
(Journal article; Peer reviewed, 2012)In order to approximate any nonlinear system, not just affine nonlinear systems, generalized T-S fuzzy systems, where the control variables and the state variables, are all premise variables are introduced in the paper. ... -
Entry-item-quantity-ABC analysis-based multitype cigarette fast sorting system
(Journal article; Peer reviewed, 2012)Numerous items, small order, and frequent delivery are the characteristics of many distribution centers. Such characteristics generally increase the operating costs of the distribution center. To remedy this problem, this ... -
A review on approaches for condition based maintenance in applications with induction machines located offshore
(Journal article; Peer reviewed, 2012)This paper presents a review of different approaches for Condition Based Maintenance (CBM) of induction machines and drive trains in offshore applications. The paper contains an overview of common failure modes, monitoring ... -
The harp: a vehicle crash test apparatus for full-scale crash test experiments
(Journal article; Peer reviewed, 2012)The current paper describes an apparatus for full-scale vehicle crash test experimentation. This apparatus is referred to as the harp. In brief, the harp may either accelerate a trolley which is impacted into a test vehicle ... -
D-optimal design for parameter estimation in discrete-time nonlinear dynamic systems
(Journal article; Peer reviewed, 2012)An optimal input design method for parameter estimation in a discrete-time nonlinear system is presented in the paper to improve the observability and identification precision of model parameters. Determinant of the ... -
Approximate analytic and numerical solutions to Lane-Emden equation via fuzzy modeling method
(Journal article; Peer reviewed, 2012)A novel algorithm, called variable weight fuzzy marginal linearization VWFML method, is proposed. Thismethod can supply approximate analytic and numerical solutions to Lane-Emden equations. And it is easy to be implemented ... -
Fault-reconstruction-based cascaded sliding mode observers for descriptor linear systems
(Journal article; Peer reviewed, 2012)This paper develops a cascaded sliding mode observer method to reconstruct actuator faults for a class of descriptor linear systems. Based on a new canonical form, a novel design method is presented to discuss the existence ... -
Discrete-time multioverlapping controller design for structural vibration control of tall buildings under seismic excitation
(Journal article; Peer reviewed, 2012)In this paper, a computationally effective strategy to obtain multioverlapping controllers via the Inclusion Principle is applied to design discrete-time state-feedback multioverlapping LQR con- trollers for seismic ... -
A fuzzy logic approach to modeling a vehicle crash test
(Journal article; Peer reviewed, 2012)This paper presents an application of fuzzy approach to vehicle crash modeling. A typical vehicle to pole collision is described and kinematics of a car involved in this type of crash event is thoroughly characterized. The ... -
Dynamic characterization for the dielectric electroactive polymer fundamental sheet
(Journal article; Peer reviewed, 2012)A study into the appropriateness of characterizing the dynamics of the dielectric electroactive polymer (DEAP) fundamental sheet has been performed. Whereby a model describing the dynamics of the DEAP fundamental sheet is ... -
Testing av mekanisk påkjenning på solcelle
(Master thesis, 2012)Solenergi industrien er den raskest voksende fornybar energi-sektoren over hele verden; reduksjon av silisium wafer tykkelse uten å øke wafer styrke kan føre til en høy brudd-prosent under påfølgende håndtering og prosessings ... -
Model[l]ing and simulation of stabilizer for remote controlled helicopter
(Master thesis, 2012)Ever since the first helicopter was invented it has never stopped to contribute to the everyday life around the world. As time has passed technological innovation have made it possible for every ordinary man to own a ...