Open Access
Impact of nonlinear friction on frequency response function measurements
Vincent Lampaert,Jan Swevers,Joris De Schutter +2 more
- pp 443-450
TLDR
In this paper, the impact of nonlinear friction on frequency response function (FRF) measurements of mechanical systems with non-linear friction is discussed and a linear approximation of the system and a reliable estimate of the level of systematic and stochastic nonlinear distortions are derived using a single special odd multisine excitation.Abstract:
This paper discusses the impact of nonlinear friction on frequency response function (FRF) measurements of mechanical systems with nonlinear friction. Having an idea of the level of nonlinear distortion is valuable information for robust linear control design: it allows to estimate the level of accuracy of a linear approximation of the system under consideration. The impact of nonlinear distortions is measured using the multisine excitation approach presented in [5]. A linear approximation of the system and a reliable estimate of the level of systematic and stochastic nonlinear distortions are derived using a single special odd multisine excitation. This is shown by means of simulations of mechanical system with friction. The friction model is nonlinear and integrates sliding and presliding behaviour [7].read more
Citations
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Journal ArticleDOI
Modeling and active damping of structural vibrations in machine tools
TL;DR: In this article, the authors present modeling of machine tool structures and their active damping in the feed drive control loop, and the fundamental modes of the machine tool structure that affect the controller are identified.
Proceedings ArticleDOI
FRF based identification of dynamic friction using two-state friction model with elasto-plasticity
Michael Ruderman,Torsten Bertram +1 more
TL;DR: In this paper, the frequency-domain friction characteristics are analyzed using a quite simple excitation which however discloses both, the presliding and sliding regimes, and the proposed friction identification, which is nowadays rarely performed in frequency domain, offers an adequate model accuracy validated in time-domain on the unseen velocity response data.
Journal ArticleDOI
A Friction Model-Based Frequency Response Analysis for Frictional Servo Systems
TL;DR: A friction model-based frequency response analysis (FRA) method is presented, which gives a precise linear mechanical dynamics model to design effective controllers and analyze accurate control characteristics for frictional servo systems.
Zur Modellierung und Kompensation dynamischer Reibung in Aktuatorsystemen
TL;DR: In this article, the state-of-the-art models of dynamic friction are analyzed and considered facing one another in the context of control-oriented friction compensation, and two observer-based approaches are proposed in addition to a rather classical feed-forward compensation scheme.
Journal ArticleDOI
An approach to develop haptic feedback control reference for steering systems using open-loop driving manoeuvres
Tushar Chugh,Tushar Chugh,Fredrik Bruzelius,Fredrik Bruzelius,Matthijs Klomp,Matthijs Klomp,Barys Shyrokau +6 more
TL;DR: In this article, a model-based haptic feedback control reference for closed-loop steering systems is demonstrated, based on the measurements of open-loop driving manoeuvres for the inertia-spring-damper-friction reference model.
References
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Journal ArticleDOI
A new model for control of systems with friction
TL;DR: A new dynamic model for friction is proposed that captures most of the friction behavior that has been observed experimentally, including the Stribeck effect, hysteresis, spring-like characteristics for stiction, and varying break-away force.
Book
Engineering Applications of Correlation and Spectral Analysis
TL;DR: This chapter discusses single-Input/Single-Output Relationships, nonstationary data analysis techniques, and procedures to Solve Multiple- Input/Multiple-Output Problems.
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Mathematical models of hysteresis
TL;DR: A new approach to the scalar Preisach model of hysteresis, which emphasizes its phenomenological nature and mathematical generality, is described in this paper, which gives the necessary and sufficient conditions for the representation of actual hystresis nonlinearities by the scalareach model.
Book
System Identification Parameter and State Estimation
TL;DR: In this paper, system identification: parameter and state estimation, System identification: parametric estimation, parameter estimation: parameter estimation, state estimation: state estimation and identification of parameters, system identification, parameter identification and state identification.
An integrated friction model structure with improved presliding behaviour for accurate friction compensation
TL;DR: The general friction model allows modeling of individual friction systems through the identification of a set of parameters that determine the complete behavior of the system and has been used to identify the friction behavior of a linear slide as well as that of the KUKA robot.
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