Measuring the higher order sinusoidal input describing functions of a non-linear plant operating in feedback
TLDR
In this article, two measuring techniques are presented for measuring the higher order sinusoidal input describing functions (HOSIDF) of a non-linear plant operating in feedback.About:
This article is published in Control Engineering Practice.The article was published on 2008-01-01 and is currently open access. It has received 26 citations till now. The article focuses on the topics: Harmonic & Harmonics.read more
Citations
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Journal Article
Technical Note: modification of the Leuven integrated friction model structure
TL;DR: In this paper, a modification of the integrated friction model structure proposed by Swevers et al. called the Leuven model is presented, which allows accurate modeling both in the presliding and the sliding regimes without the use of a switching function.
Journal ArticleDOI
Linear System Identification in a Nonlinear Setting: Nonparametric Analysis of the Nonlinear Distortions and Their Impact on the Best Linear Approximation
TL;DR: In this paper, a linear dynamic time-invariant model is identified to describe the relationship between the reference signal and the output of the system, and the power spectrum of the unmodeled disturbances are identified to generate uncertainty bounds on the estimated model.
Journal ArticleDOI
Linear System Identification in a Nonlinear Setting - Nonparametric analysis of the nonlinear distortions and their impact on the best linear approximation
TL;DR: A linear dynamic time-invariant model is identified to describe the relationship between the reference signal and the output of the system and the power spectrum of the unmodeled disturbances are identified to generate uncertainty bounds on the estimated model.
Journal ArticleDOI
Frequency domain based nonlinear feed forward control design for friction compensation
DJ David Rijlaarsdam,DJ David Rijlaarsdam,P.W.J.M. Nuij,Joannes Schoukens,M Maarten Steinbuch +4 more
TL;DR: In this paper, a frequency domain based method for controller design for nonlinear systems is presented, which is applied to optimally design a feed forward friction compensator for an industrial motion stage in a transmission electron microscope.
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Brief paper: Spectral analysis of block structured nonlinear systems and higher order sinusoidal input describing functions
TL;DR: A mapping from the parameters defining the nonlinear and LTI dynamics to the output spectrum is derived, which allows analytic description and analysis of the corresponding higher order sinusoidal input describing functions.
References
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Journal ArticleDOI
Modification of the Leuven integrated friction model structure
TL;DR: A first modification overcomes a recently detected shortcoming of the original Leuven model: a discontinuity in the friction force which occurs during certain transitions in presliding, and eliminates the problem of stack overflow, which can occur with the implementation of the hysteresis force.
Proceedings ArticleDOI
Discrete-Time Domain Analysis and Synthesis of Repetitive Controllers
TL;DR: In this article, a plug-in repetitive controller is introduced and applied to track-following in a disk-file actuator system, where the performance is enhanced when the zero-holding device is followed by a low-pass filter or replaced by a delayed first-order hold.
Proceedings ArticleDOI
Digital Control Of Repetitive Errors In Disk Drive Systems
Kok Kia Chew,Masayoshi Tomizuka +1 more
TL;DR: Three specialized digital controllers applied as plug-in modules to a winchester disk drive with a pre-existing analog feedback controller to demonstrate their efficacy in the reduction of this periodic component of tracking errors.
Journal ArticleDOI
Frequency domain analysis of nonlinear systems: general theory
Leon O. Chua,C.-Y. Ng +1 more
TL;DR: In this article, a unified study of the applications of Volterra functional series to nonlinear-system analysis is presented with special emphasis on frequency-domain results which either have not been published before, or where rigour had been lacking.
Journal ArticleDOI
PID control in the presence of static friction: a comparison of algebraic and describing function analysis
Brian S. R. Armstrong,Bimal Amin +1 more
TL;DR: An idealized Coulomb + static friction model, dimensional analysis and the study of all possible solutions of the equations of motion are used to achieve rigorous and general results for this nonlinear problem of friction and control.
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