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Dissertations / Theses on the topic 'Stick-slip friction'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Манько, Наталія Миколаївна, Наталья Николаевна Манько, and Nataliia Mykolaivna Manko. "Stick-slip mode of boundary friction." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33545.

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The study of the boundary friction processes that develop in nanosized tribosystems has drawn active interest of many researchers. One of the perspective directions is the investigation of the friction of atomically smooth solid surfaces in the presence of an ultrathin film of a homogeneous lubricant between them. The interest is partially due to the applied significance of these systems, as they are used in increasing frequency to design precise devices and instruments. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33545

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2

Tariku, Fitsum. "Simulation of dynamic mechanical systems with stick-slip friction." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0011/MQ38415.pdf.

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3

Wu-Bavouzet, Fangnien. "Friction sur surfaces à plots." Paris 6, 2008. http://www.theses.fr/2008PA066383.

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L'objet de cette thèse est l'adhésion et la friction de lentilles millimétriques d'élastomères sur un substrat décoré de plots micrométriques de hauteur variable. A cette fin, nous avons utilisé un AFM géant permettante mesurer les forces normales et tangentielles appliquées à la lentille et d'observer le contact. Il permet d'explorer des vitesses de glissement de l'ordre de 100 µm/s, et des forces de l'ordre de 10-3 N. Nous avons observé deux types de contact selon la hauteur h des plots : intime (h<hc) et posé (h>hc). Les régimes de glissement observés dépendent de la dureté de l'élastomère

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Manko, N. N., and I. A. Lyashenko. "Stochastic Oscillations at Stick-Slip Motion in the Boundary Friction Regime." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35148.

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In this paper, the further development of the synergetic model describing the ultrathin lubricant film state clamped between two atomically smooth solid surfaces operating under boundary friction mode has been done based on the Lorentz model for the approximation of a viscoelastic medium. In all cases, the phase portraits have been built. It has been found that the friction surfaces' temperature increasing leads to the growth of stochasticity in the investigated system. In the phase plane the stochastic oscillation mode can be described as a strange attractor. Also, the behavior of two di

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5

Boone, Jacob Dee. "Design, Construction and Evaluation of Universal Friction Tester." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/theses/307.

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AN ABSTRACT OF THE THESIS OF Jacob Boone, for the Master of Science degree in Mechanical Engineering, presented on 10/28/2010, at Southern Illinois University Carbondale. TITLE: DESIGN, CONSTRUCTION, AND EVALUTAION OF UNIVERSAL FRICTION TESTER MAJOR PROFESSOR: Dr. Peter Filip Many different types of friction testers are currently available for testing specific frictional applications. Of these machines very few have versatility, and of the ones that do, the amount of versatility is limited. Since friction is a property specific to each system, all operating parameters need to match the specifi

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6

Lyashenko, I. A., Олексій Віталійович Хоменко, Алексей Витальевич Хоменко, et al. "Hysteresis Phenomena in the Stick-Slip Motion at the Boundary Friction Mode." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35072.

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The tribological system is considered, which consists of two atomically smooth solid surfaces separated by an ultrathin lubricant film. The thermodynamic model based on the Landau theory of phase transitions is built, which describes behavior of this system in the boundary friction mode. The free energy density for an ultrathin lubricant film is given in the form of expansion into series by the powers of order parameter that is reduced to the shear modulus of lubricant. The kinetics of the system is studied on the basis of model describing first-order phase transitions between kinetic mod

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7

Suetti, André Garcia Lima. "Estudo do fenômeno "stick-slip" aplicado às vibrações de freios automotivos." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265209.

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Orientador: Robson Pederiva<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-19T13:48:38Z (GMT). No. of bitstreams: 1 Suetti_AndreGarciaLima_M.pdf: 20585864 bytes, checksum: 84c85d26b6df77562a52c8ca3aa2aedf (MD5) Previous issue date: 2011<br>Resumo: O interesse da indústria automobilística em projetar freios menos ruidosos vem incentivando pesquisas na área de acústica e vibração. A compreensão de um dos principais fenômenos de excitação de vibração em sistemas com atrito, o stick-slip, é de grande importân

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8

Busse, Leif [Verfasser]. "Investigation, prediction and control of rubber friction and stick-slip : experiment, simulation, application / Leif Busse." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2013. http://d-nb.info/1032719249/34.

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9

Aubry, Jérôme. "Séismes au laboratoire : friction, plasticité et bilan énergétique." Thesis, Paris Sciences et Lettres (ComUE), 2019. http://www.theses.fr/2019PSLEE053.

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Au sein de la lithosphère, la transition entre déformations fragile et plastique des roches s’effectue dans le régime semicassant. Comprendre le comportement des failles naturelles dans le régime semi-cassant est fondamental puisque d’importants séismes nucléent à la base de la zone sismogénique, à des conditions de pression et température proches de celles de la transition fragile-plastique. Pendant un séisme, l’énergie élastique accumulée lors de la période intersismique est dissipée au sein de l’interface de glissement par des processus frictionnels et de fracture, le reste étant relâché so

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10

Di, Bartolomeo Mariano, and Bartolomeo Mariano Di. "Wave generation and propagation at tribological interfaces." Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00715732.

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This thesis is addressed to the understanding of the mechanisms at the origin of the contact wave fields at frictional interfaces and its relationship with the local characteristics of the surfaces in contact, as well as with the global dynamics and macroscopic frictional behaviour of the system. The aim of this work is to provide insights on the generation and propagation of the waves through the contact both to avoid instabilities and to control their effect on friction. The work is organized in two main parts. The first part presents the development of a non-linear finite element analysis i

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11

KONDEPUDI, RAMABALARAJENDRASESH. "NUMERICAL ANALYSIS OF LUMPED PARAMETER DYNAMIC SYSTEMS WITH FRICTION." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1083622496.

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12

Gandhi, Satish. "Study of Friction Effects on System Dynamics using Low-Order Lumped-Parameter Models." University of Cincinnati / OhioLINK, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1029423191.

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13

Tonazzi, Davide. "Macroscopic frictional contact scenarios and local contact dynamics : At the origins of “macroscopic stick-slip”, mode coupling instabilities and stable continuous sliding." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0110/document.

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Le comportement local au contact et son interaction avec la dynamique globale du système sont à l'origine d’innombrables problèmes de contact concernant plusieurs disciplines telles que la tribologie, la géophysique, la mécanique de vibration ou la mécanique de la rupture. Lorsque deux corps élastiques sont en mouvement relatif avec une interface de frottement, des vibrations induites se produisent dans le système. Dans un point de vue macroscopique, le scénario macroscopique de stick-slip survenant pendant le mouvement relatif est caractérisé par la chute soudaine de la force de frottement (é

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14

Ghezzi, Ilaria. "Tribological and vibro-acoustic behaviour of a lubricated contact subjected to the stick-slip phenomenon : The case of the spring-brake system." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI116.

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Les travaux de thèse proposent une approche complémentaire, combinant analyses dynamiques et tribologiques, au problème de stick-slip d’un contact graissé, dans un frein mécanique à ressort. L’instabilité de stick-slip est le résultat du couplage entre la réponse dynamique du système mécanique (frein) et la réponse locale du contact lubrifié à l’interface de freinage. La réponse locale du contact graissé a d’abord été caractérisée par des tests expérimentaux effectués sur tribomètre. Ensuite, les conditions qui conduisent à l'instabilité ont pu être investiguées en détail, à l’aide d’un modèle

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15

Hamouda, Karim. "Bronze-Steel Friction Characteristics under the Lubrication of Modified Water/Glycerol Mixtures." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65217.

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Increasing environmental awareness has driven a lot of research to look into various environmentally friendly lubricants which can replace more conventional mineral oil based lubricants. This is true in particular for marine and hydropower applications where the risk of lubricant leakage can be damaging to the local environment. Glycerol is an organic compound produced as a byproduct when producing Biodiesel. It is environmentally friendly and has been used by the pharmaceutical and food industries for a long time. Recent research has shown that glycerol has very good tribological properties a

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16

Tambe, Nikhil S. "Nanotribological investigations of materials, coatings and lubricants for nanotechnology applications at high sliding velocities." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1109949835.

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17

Nguyen, Thi Thu Tra. "Dynamic instabilities of model granular materials." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSET007/document.

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Cette thèse étudie les instabilités dynamiques des milieux granulaires modèles saturés à l’aide d’un appareil triaxial classique. Les instabilités englobent la liquéfaction et les effondrements en compression isotrope drainée, les frottements saccadés en compression triaxiale drainée. Ces instabilités apparaissent spontanément à des contraintes effectives de confinement imprévisibles. Elles sont accompagnées de très rapides et très fortes surpressions interstitielles, malgré un drainage approprié; ce que ne présentent pas les milieux granulaires naturels. En compression isotrope drainée (conso

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18

Elmaian, Alex. "Méthodologies de simulation des bruits automobiles induits par le frottement." Phd thesis, Université du Maine, 2013. http://tel.archives-ouvertes.fr/tel-00839253.

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Les bruits automobiles induits par le frottement sont à l'origine de nombreuses plaintes clients et occasionnent des coûts de garantie considérables pour les constructeurs automobiles. Les objectifs de la thèse consistent à comprendre la physique à l'origine de ces bruits et proposer des méthodologies de simulation afin de les éradiquer. Un système générique est tout d'abord étudié. Ce système discret met en jeu un contact entre deux masses et une loi de frottement de Coulomb présentant une discontinuité à vitesse relative nulle. Des calculs de valeurs propres complexes de ce système linéarisé

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19

Moldenhauer, Patrick. "Modellierung und Simulation der Dynamik und des Kontakts von Reifenprofilblöcken." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2010. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-38439.

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Die Kontaktverhältnisse zwischen Reifen und Fahrbahn bestimmen die maximal übertragbaren Beschleunigungs-, Brems- und Seitenkräfte des Fahrzeugs und sind daher für die Fahrsicherheit von großer Bedeutung. In dieser Arbeit wird ein Modell zur numerisch effizienten Simulation der hochfrequenten Dynamik einzelner Reifenprofilblöcke entwickelt. Der vorgestellte Modellansatz nutzt einerseits die Vorteile der Finite-Elemente-Methode, welche die Bauteilstruktur detailliert auflösen kann, bei der jedoch lange Rechenzeiten in Kauf genommen werden. Andererseits profitiert der vorgestellte Modellansatz v

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20

Di, Bartolomeo Mariano. "Wave generation and propagation at tribological interfaces." Thesis, Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0144/document.

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L’objectif de cette thèse est d’approfondir la connaissance sur la génération et la propagation des ondes à travers l’interface de contact afin de contrôler leurs effets sur le frottement, contrôler les instabilités et réduire les phénomènes d'usure. Le travail est organisé en deux parties principales. La première partie est axée sur une analyse non-linéaire par éléments finis en grandes transformations; la rupture dynamique à l’interface de contact avec frottement, qui sépare deux corps (isotropes et élastiques) en condition de pré-charge statique, est simulée. On définit comme étant une rupt

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21

Craciun, Andra. "AFM force spectroscopies of surfaces and supported plasmonic nanoparticules." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAE039/document.

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Dans ce travail de thèse, le microscope à force atomique (AFM) a été utilisé comme outil de manipulation de haute précision pour construire des nanostructures plasmoniques avec des géométries définies et un réglage précis de la distance interparticulaire et également comme technique de spectroscopie d'absorption. Différentes études concernant les phénomènes pertinents pour la manipulation des nanoparticules et émergeant à l'interface substrat-nanoparticules, ont été réalisées. Des expériences de frottement menées sur diverses surfaces d'oxydes ont révélé un nouveau mécanisme de frottement à l’

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22

Ляшенко, Яків Олександрович, Яков Александрович Ляшенко та Yakiv Oleksandrovych Liashenko. "Фазовые переходы между кинетическими режимами граничного трения". Thesis, Сумский государственный университет, 2016. http://essuir.sumdu.edu.ua/handle/123456789/46497.

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У дисертацiї побудовано теорiю тертя атомарно-гладких твердих поверхонь, роздiлених межовим мастилом, плавлення i тверднення якого подано як фазовi переходи першого або другого роду. Описано переривчастий режим руху та ефекти пам’ятi, пов’язанi з релаксацiйними процесами. При врахуваннi залежностi ефективної в’язкостi вiд температури i градiєнта швидкостi описано статичну силу тертя. Можливий випадок, коли по площi контакту iснує доменна структура з рiдиноподiбними i твердоподiбними дiлянками. При просторово неоднорiдному розподiлi параметра порядку мастило швидко набуває однорiдного стану. Пр

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23

Lundberg, Oskar. "On the influence of surface roughness on rolling contact forces." Doctoral thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-193935.

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Road vehicle tyres, railway wheels and ball bearings all generate rolling contact forces which are transferred within a finite area of contact between the rolling element and the substrate. Either it is visible or not for the human eye, a certain degree of roughness is always present on the contacting surfaces and it influences the generation of both vertical and lateral contactforces. The purpose of this investigation is to enhance the understanding and modelling of the influence from small-scale surface roughness on the generation of rolling contact forces. To this end, a computationally eff

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24

Oberhardt, Tobias. "A micromechanical model for the nonlinearity of microcracks in random distributions and their effect on higher harmonic Rayleigh wave generation." Thesis, Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54365.

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This research investigates the modeling of randomly distributed surface-breaking microcracks and their effects on higher harmonic generation in Rayleigh surface waves. The modeling is based on micromechanical considerations of rough surface contact. The nonlinear behavior of a single microcrack is described by a hyperelastic effective stress-strain relationship. Finite element simulations of nonlinear wave propagation in a solid with distributed microcracks are performed. The evolution of fundamental and second harmonic amplitudes along the propagation distance is studied and the acoustic nonl

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25

Smith, Jonathan Hurndall. "Stick-slip vibration and is constitutive laws." Thesis, University of Cambridge, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304168.

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26

Meurk, Anders. "Force measurements using scanning probe microscopy : Applications to advanced powder processing." Doctoral thesis, Stockholm, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3023.

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27

Манько, Наталія Миколаївна, Наталья Николаевна Манько та Nataliia Mykolaivna Manko. "Синергетическое представление прерывистого режима граничного трения". Thesis, СумГУ, 2015. http://essuir.sumdu.edu.ua/handle/123456789/39766.

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Дисертацію присвячено дослідженню процесів межового тертя в рамках моделі нанорозмірної трибологічної системи, а також аналізу процесу зсувного плавлення в твердих тілах. Описано поведінку трибологічних систем двох типів – при зсуві верхньої поверхні тертя в одному напрямку та при зовнішньому знакозмінному впливі. Встановлено, що залежно від температури та параметрів мастила може встановлюватись як режим загасаючих коливань, так і автоколивальний режим, представлений у вигляді дивного атрактора. Проведено врахування просторової неоднорідності напружень, деформації та температури мастильного ша

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28

Renard, Yves. "Modélisation des instabilités liées au frottement sec des solides élastiques, aspects théoriques et numériques." Phd thesis, Université Joseph Fourier (Grenoble), 1998. http://tel.archives-ouvertes.fr/tel-00004903.

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Ce travail comporte deux parties. La première partie est une étude bibliographique sur la modélisation du frottement sec et sur les différentes lois de frottement qui ont été introduites pour rendre compte des instabilités du mouvement des solides soumis à la friction sèche. La deuxième partie est une étude théorique et numérique d'un problème modèle dynamique où une lois de type Coulomb avec coefficient de frottement dépendant de la vitesse de glissement est appliquée à un solide élastique. Le cadre des inclusions différentielles est introduit pour traiter rigoureusement les modèles à nombre

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29

Hamiti, Karim. "Etude et mise en oeuvre de lois de commande numériques sur un actionneur électropneumatique avec frottements." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10130.

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Le travail presente dans cette these est devolu a la realisation d'un actionneur electro-pneumatique a commande numerique. La reflexion conduite dans ce domaine avait un double objectif: ? d'une part, l'etude du systeme dans l'optique d'une commande par micro-controleur. Ceci nous a permis de revoir un ensemble de solutions possibles et d'en choisir la plus adequate, tout en gardant a l'esprit l'aspect implementation et le cahier des charges assigne. ? d'autre part, de tester experimentalement des algorithmes de commande lineaire robustes, sur un systeme electro-pneumatique fortement non linea

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Sayed, Baraa Al. "Comportement dynamique des ensembles tournants de turbomachines : Maîtrise des effets des dispositifs de liaisonnement amortisseurs." Thesis, Lyon, INSA, 2011. http://www.theses.fr/2011ISAL0022/document.

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La fatigue à nombre de cycles élevé (HCF) est un mode de défaillance courant et dangereux pour les aubages de turbomachines. Elle est induite par les efforts dynamiques élevés générés lors de résonances présentes dans la plage de fonctionnement de ces machines. Les dispositifs amortisseurs basés sur l’utilisation du frottement sec, tels que les nageoires ou les frotteurs sous-plateformes, permettent de réduire les amplitudes vibratoires, voire de repousser les fréquences de résonance hors des zones de fonctionnement. Cependant la conception de ces dispositifs reste encore largement basée sur l

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31

Pavelec, Jiří. "Vývoj lineárního posuvu pro UHV STM/AFM." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229812.

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The aim of this diploma thesis is to develop a linear positioning stage for Ultra High Vacuum (UHV) environment. Simple prototypes of the linear positioning stage were designed and incorporated as part of a multiaxis sample manipulator for a UHV Scanning Tunneling Microscopy / Atomic Force Microscopy (STM/AFM). Different types of position encoders and linear guideways are discussed. Implementation of the homodyne interferometer as an optimization tool for a slip-stick based linear stage is described. Scalar diffraction theory is used to model the diffraction grating optical position encoder be

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32

Заскока, Антон Миколайович, Антон Николаевич Заскока та Anton Mykolaiovych Zaskoka. "Фазові переходи в ультратонких твердоподібних плівках мастила при межовому терті". Thesis, Вид-во СумДУ, 2015. http://essuir.sumdu.edu.ua/handle/123456789/43321.

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Дисертацію присвячено дослідженню процесів межового тертя в рамках термодинамічної моделі плавлення ультратонкого мастила, затиснутого між двома атомарно-гладкими твердими поверхнями. Описано поведінку двох простих механічних аналогів трибологічних систем – при зсуві верхньої поверхні тертя в одному напрямку та при зовнішньому знакозмінному впливі. Установлено, що залежно від керуючих параметрів мастила можуть реалізуватись режими сухого, переривчастого та рідинного тертя. Проведена модифікація термодинамічного потенціалу, яка дала змогу описати фазові переходи першого роду в системі. Показа

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Асмолова, Лариса Валериевна. "Улучшение динамики электромеханических систем в условиях срывных фрикционных автоколебаний". Thesis, НТУ "ХПИ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/18481.

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Диссертация на соискание ученой степени кандидата технических наук по специальности 05.09.03 – электротехнические комплексы и системы. – Национальный технический университет "Харьковский политехнический институт", Харьков, 2015. Диссертация посвящена определению путей улучшения динамики электро-механических систем (ЭМС) за счет устранения срывных фрикционных автоколебаний (АКФ) методами регулируемого электропривода. Получены аналитические соотношения для определения условия существования срывных АКФ в разомкнутых одномассовой и двухмассовой ЭМС с характеристикой трения, учитывающей скачкообра

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Асмолова, Лариса Валеріївна. "Поліпшення динаміки електромеханічних систем в умовах зривних фрикційних автоколивань". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/18480.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.09.03 – електротехнічні комплекси та системи. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2015. Дисертація присвячена визначенню шляхів поліпшення динаміки електро-механічних систем (ЕМС) за рахунок усунення зривних автоколивань фрикційних (АКФ) методами регульованого електроприводу. Отримано аналітичні співвідношення умов існування зривних АКФ в одномасовій і двомасовій ЕМС, що визначають області, де АКФ відсутні. Досліджені математичні моделі одномасової та двомасової

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LI, JUNSHAN. "The Development of Semi-Analytical Solutions for 3-D Contact Problems." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1092069082.

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Tataryn, Peter D. "Modelling and compensation of stick-slip friction for robot arm control." 1996. http://hdl.handle.net/1993/19358.

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Hong, Hsia Jeng, and 夏正宏. "The Influence of the Friction Models on the Stick-Slip Motion." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/25088777141646266977.

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Papangelo, Antonio. "Stick-slip transition and dynamic cyclic response of friction damped systems." Doctoral thesis, 2017. http://hdl.handle.net/11589/99179.

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This thesis is subdivided into two parts: in the first we analyze the transition from static to dynamic friction with some emphasis on the implication of using more refined friction laws (with respect to the simple Coulomb model) while in the second part we study the cyclic response of dynamical systems that experience friction. Particularly, in the first part we will take inspiration from some recent experiments from the group of Prof. Fineberg to tackle some partial slip contact problems, with the idea in mind of providing analytical models that can, in some extent, interpreter some of the n

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Owen, William Scott. "An investigation into the reduction of stick-slip friction in hydraulic actuators." Thesis, 2001. http://hdl.handle.net/2429/11786.

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The stick-slip friction phenomenon occurs during the switch from static to dynamic friction. Static friction is the force that opposes the sliding motion of an object at rest. Dynamic friction is the force that opposes the sliding motion of a moving object. Thus, near zero velocity, there is a switch from static to dynamic friction. Generally, static friction is greater than dynamic friction. In order to move an object the applied force must exceed the static friction. Once movement starts the friction force typically decreases as it switches to dynamic friction. However, if the applied

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Kuo, Ter-Ming, and 郭德明. "Fuzzy Control of One-Dimensional Precision Mechanical Systems with Stick-Slip Friction." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/88081792251847330898.

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碩士<br>國立中興大學<br>機械工程研究所<br>81<br>This study considers the application of fuzzy control to rigid and flexible mechanical systems with stick-slip friction in order that the systems have precise positioning and trajectory- following performance. The design of a fuzzy control system need not fully rely on the mathematical model of the plant. Usually, control engineers design the fuzzy control rules based only on the heuristic knowledge about the plant. Thus it is very suitable for the control o

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Zhang, Zhen Hou, and 張振厚. "PD and fuzzy logic control for flexible-joint manipulators with stick-slip friction." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/23892085077625934838.

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M, Wen S., and 溫恕民. "Adaptive Fuzzy Control Using Back-Propagation for Mechanical Systems with Stick-Slip Friction." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/50753793944016736093.

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Baleri, Mudlagiri. "Stick-slip friction and rotational vibration under large contact areas and uneven distributed loads." Thesis, 2000. http://hdl.handle.net/2429/10546.

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The proposed research is aimed at the analysis of stick-slip frictional phenomenon when large contact areas are involved and, due to the physical structure of the system, high uneven contact loads are generated. The study will look at both mechanistic and tribological aspects of the problem. The main objective of the research is to achieve a better understanding of the phenomenon based on experimental observations and to develop a mathematical representation under realistic conditions. A non-linear finite element model has been developed using ANSYS to obtain an understanding of the con

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高聰賢. "On Stick-Slip and Surface Friction Under the Effects of Contact Time and Loading Rate." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/89825854307760140707.

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碩士<br>國立中興大學<br>機械工程研究所<br>83<br>When two contact surfaces move in a relatively low velocity, there occurs a discontinuous movement, known as stick-slip motion, due to the presence of friction force. An experimental apparatus is constructed to measure the functional relation of static friction coefficient and stick time under different tangential loading rate while two contact surfaces are in dry or boundary lubricated conditions. The function thus obtained is used in theoretical analysis to describe stick-slip phenomenon. the experimental resultsshow that the diagrams of μ－ts and μs－F rela

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Lin, Wen Yuan, and 林文源. "Sliding friction and stick-slip motion of two contact surfaces in dry and lubricated conditions." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/59045238725290396262.

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GHEZZI, ILARIA. "Tribological and vibro-acoustic behaviour of a lubricated contact subjected to the stick-slip phenomenon: the case of the spring-brake system." Doctoral thesis, 2020. http://hdl.handle.net/11573/1506719.

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The main objective of the PhD thesis is the analysis of stick-slip phenomena in lubricated contacts, by merging the physical, experimental and numerical points of view and proposing a novel methodological approach, applied here to an industrial case. Nowadays, in the field of applied mechanics and tribology, one of the most important challenges is the ability to predict and reduce surface damages, failure of machine components and undesirable frictional and dynamic characteristics. In particular, the appearance of friction-induced vibrations at the contact is hardly controllable and can result

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TONAZZI, DAVIDE. "Macroscopic frictional contact scenarios and local contact dynamics: at the origins of “macroscopic stick-slip”, mode coupling instabilities and stable continuous sliding." Doctoral thesis, 2014. http://hdl.handle.net/11573/863973.

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Local contact behavior and its interaction with the global dynamics of the system are at the origin of innumerable contact issues concerning several different disciplines like tribology, geophysics, vibration mechanics or fracture mechanics. When two elastic media are in relative motion with a frictional interface, friction induced vibrations arise into the system. By a macroscopic point of view, the “macroscopic stick-slip” scenario occurring during relative motion is characterized by sudden friction force drops (sliding state) along the time, separated by periods of elastic energy accumula

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DI, BARTOLOMEO MARIANO. "Wave generation and propagation at tribological interfaces." Doctoral thesis, 2011. http://hdl.handle.net/11573/917655.

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Wave generation and propagation at contact interfaces is a relevant issue in mechanics because they affect directly a large number of mechanical systems involving either static or sliding frictional parts. Contact dynamics is at the origin of friction induced vibrations, acoustical instabilities, surface damage, wear and fatigue failures [IBRA 94][AKAY 02] Propagating waves at the interface can be exploited for controlling the global friction features of the contact. Beside classical experiments, numerical analysis on dry contacts in sliding state has been one of the mayor topic in recent li

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Többens, Alexander. "Dynamik und Bifurkationsverhalten eines getriebenen Oszillators mit frei aufliegender Dämpfermasse." Doctoral thesis, 2011. http://hdl.handle.net/11858/00-1735-0000-0006-B4F4-4.

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