Friction

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Friction is the force resisting the relative motion of solid surfaces, fluid layers, and/or material elements sliding against each other. (Wikipedia.org)






Conferences related to Friction

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2018 15th International Workshop on Advanced Motion Control (AMC)

1. Advanced Motion Control2. Haptics, Robotics and Human-Machine Systems3. Micro/Nano Motion Control Systems4. Intelligent Motion Control Systems5. Nonlinear, Adaptive and Robust Control Systems6. Motion Systems for Robot Intelligence and Humanoid Robotics7. CPG based Feedback Control, Morphological Control8. Actuators and Sensors in Motion System9. Motion Control of Aerial/Ground/Underwater Robots10. Advanced Dynamics and Motion Control11. Motion Control for Assistive and Rehabilitative Robots and Systems12. Intelligent and Advanced Traffic Controls13. Computer Vision in Motion Control14. Network and Communication Technologies in Motion Control15. Motion Control of Soft Robots16. Automation Technologies in Primary Industries17. Other Topics and Applications Involving Motion Dynamics and Control


2018 XIII International Conference on Electrical Machines (ICEM)

Scope of the conference includes technology advances in design, analysis, manufacturing and measurements for electrical machines and drives


2017 13th IEEE International Conference on Control & Automation (ICCA)

Theory and applications of control and automation, and possible contributions toward sustainable development and environment preservation


2017 19th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS)

The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology. The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems, Fabrication and Packaging, Mechanical and Physical Sensors, Materials and Characterization, Design, Simulation and Theory, Actuators, Optical MEMS, RF MEMS, Nanotechnology, Energy and Power


2017 20th International Conference on Electrical Machines and Systems (ICEMS)

This conference aims to provide a forum for researchers, scientists, and engineers to present their latest R&D achievements and to exchange useful information and experiences in the field of electrical machines and systems, including electrical machines of all types and all aspects (such as new structures, materials, and analysis and design methods), power electronic converters, motion control, electrical drive, and application systems, as well as other relevant areas.


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Periodicals related to Friction

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Applied Superconductivity, IEEE Transactions on

Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission


Automatic Control, IEEE Transactions on

The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Consumer Electronics, IEEE Transactions on

The design and manufacture of consumer electronics products, components, and related activities, particularly those used for entertainment, leisure, and educational purposes


Control Systems Technology, IEEE Transactions on

Serves as a compendium for papers on the technological advances in control engineering and as an archival publication which will bridge the gap between theory and practice. Papers will highlight the latest knowledge, exploratory developments, and practical applications in all aspects of the technology needed to implement control systems from analysis and design through simulation and hardware.


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Xplore Articles related to Friction

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Fuzzy modeling of LuGre-type friction

Jacek Kabziński; Marcin Jastrzębski 2015 IEEE 2nd International Conference on Cybernetics (CYBCONF), 2015

A new modeling technique leading to simple and reliable dynamic model of friction is proposed. The model may be applied for friction compensation in the electric drive control algorithms. The model is based on the fuzzy approximation of the coefficient influencing the internal state variable dynamics. The data for fuzzy modelling are collected during steady-state operation of the drive and ...


A modified pressure drop analytical method for heat sink

C. K. Loh; D. J. Chou The Ninth Intersociety Conference on Thermal and Thermomechanical Phenomena In Electronic Systems (IEEE Cat. No.04CH37543), 2004

Pressure drop indirectly affects the thermal performance of a heat sink. In the absence of computer simulated software, predicting the pressure drop across the heat sink would rely entirely on theoretical correlation. In addition, theoretical pressure drop prediction can also served as a reference for comparison with experimental data and numerical results. Different theoretical heat sink pressure drop approximations produce ...


The characteristic research of contact insertion and separation force in connector

Liu Hong-Yang Thirty-Sixth IEEE Conference on Electrical Contacts, and the Fifteenth International Conference on Electrical Contacts, 1990

The characteristics of insertion and separation force, as well as the influence of various geometric shapes, sizes, and frictional coefficients on insertion and separation force are studied. A series of mathematical models and some appropriate practical curves are presented. Experimental results show that the peak insertion force of contacts relates to the geometric shape and surface roughness of the guiding ...


Hybrid display of realistic tactile sense using ultrasonic vibrator and force display

Yuta Shiokawa; Atsushi Tazo; Masashi Konyo; Takashi Maeno 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008

This paper presents a hybrid tactile displaying method of realistic texture using ultrasonic vibrator and force display. The aim of this study is to display various realistic tactile senses by controlling multiple factors including roughness, softness and friction sense. First, a tactile displaying system was configured for displaying roughness, softness and friction sense simultaneously by compensating the interference among multiple ...


A numerical simulation on a pneumatic air table realized by micro-EDM

T. Hirata; O. T. Guenat; T. Akashi; M. -A. Gretillat; N. F. de Rooij Journal of Microelectromechanical Systems, 1999

This paper presents a numerical simulation of the flow field on a one- dimensional pneumatic actuator. Unlike conventional actuators, this model uses dynamic pressure instead of friction to drive a slider. The objective of this simulation is to find the detail of the flow field under the slider as well as the influence of its levitation on the horizontal transportation. ...


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Educational Resources on Friction

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eLearning

Fuzzy modeling of LuGre-type friction

Jacek Kabziński; Marcin Jastrzębski 2015 IEEE 2nd International Conference on Cybernetics (CYBCONF), 2015

A new modeling technique leading to simple and reliable dynamic model of friction is proposed. The model may be applied for friction compensation in the electric drive control algorithms. The model is based on the fuzzy approximation of the coefficient influencing the internal state variable dynamics. The data for fuzzy modelling are collected during steady-state operation of the drive and ...


A modified pressure drop analytical method for heat sink

C. K. Loh; D. J. Chou The Ninth Intersociety Conference on Thermal and Thermomechanical Phenomena In Electronic Systems (IEEE Cat. No.04CH37543), 2004

Pressure drop indirectly affects the thermal performance of a heat sink. In the absence of computer simulated software, predicting the pressure drop across the heat sink would rely entirely on theoretical correlation. In addition, theoretical pressure drop prediction can also served as a reference for comparison with experimental data and numerical results. Different theoretical heat sink pressure drop approximations produce ...


The characteristic research of contact insertion and separation force in connector

Liu Hong-Yang Thirty-Sixth IEEE Conference on Electrical Contacts, and the Fifteenth International Conference on Electrical Contacts, 1990

The characteristics of insertion and separation force, as well as the influence of various geometric shapes, sizes, and frictional coefficients on insertion and separation force are studied. A series of mathematical models and some appropriate practical curves are presented. Experimental results show that the peak insertion force of contacts relates to the geometric shape and surface roughness of the guiding ...


Hybrid display of realistic tactile sense using ultrasonic vibrator and force display

Yuta Shiokawa; Atsushi Tazo; Masashi Konyo; Takashi Maeno 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008

This paper presents a hybrid tactile displaying method of realistic texture using ultrasonic vibrator and force display. The aim of this study is to display various realistic tactile senses by controlling multiple factors including roughness, softness and friction sense. First, a tactile displaying system was configured for displaying roughness, softness and friction sense simultaneously by compensating the interference among multiple ...


A numerical simulation on a pneumatic air table realized by micro-EDM

T. Hirata; O. T. Guenat; T. Akashi; M. -A. Gretillat; N. F. de Rooij Journal of Microelectromechanical Systems, 1999

This paper presents a numerical simulation of the flow field on a one- dimensional pneumatic actuator. Unlike conventional actuators, this model uses dynamic pressure instead of friction to drive a slider. The objective of this simulation is to find the detail of the flow field under the slider as well as the influence of its levitation on the horizontal transportation. ...


More eLearning Resources

IEEE-USA E-Books

  • Index

    This revised edition of Taylor's classic work on the internal-combustion engine incorporates changes and additions in engine design and control that have been brought on by the world petroleum crisis, the subsequent emphasis on fuel economy, and the legal restraints on air pollution.The fundamentals and the topical organization, however, remain the same. The analytic rather than merely descriptive treatment of actual engine cycles, the exhaustive studies of air capacity, heat flow, friction, and the effects of cylinder size, and the emphasis on application have been preserved. These are the basic qualities that have made Taylor's work indispensable to more than one generation of engineers and designers of internal-combustion engines, as well as to teachers and graduate students in the fields of power, internal-combustion engineering, and general machine design.Charles Fayette Taylor is Professor of Automotive Engineering Emeritus at MIT. He directed the Sloan Automotive Laborator es at MIT from 1926 to 1960

  • No title

    Cartilage injuries in children and adolescents are increasingly observed, with roughly 20% of knee injuries in adolescents requiring surgery. In the US alone, costs of osteoarthritis (OA) are in excess of $65 billion per year (both medical costs and lost wages). Comorbidities are common with OA and are also costly to manage. Articular cartilage's low friction and high capacity to bear load makes it critical in the movement of one bone against another, and its lack of a sustained natural healing response has necessitated a plethora of therapies. Tissue engineering is an emerging technology at the threshold of translation to clinical use. Replacement cartilage can be constructed in the laboratory to recapitulate the functional requirements of native tissues. This book outlines the biomechanical and biochemical characteristics of articular cartilage in both normal and pathological states, through development and aging. It also provides a historical perspective of past and current cartil ge treatments and previous tissue engineering efforts. Methods and standards for evaluating the function of engineered tissues are discussed, and current cartilage products are presented with an analysis on the United States Food and Drug Administration regulatory pathways that products must follow to market. This book was written to serve as a reference for researchers seeking to learn about articular cartilage, for undergraduate and graduate level courses, and as a compendium of articular cartilage tissue engineering design criteria. Table of Contents: Hyaline Articular Cartilage / Cartilage Aging and Pathology / In Vitro / Bioreactors / Future Directions

  • Understanding Slip Perception of Soft Fingertips by Modeling and Simulating Stick-Slip Phenomenon

    Slip, especially incipient slip, is a complicated process for soft fingertips; and detection of this slip is of important factor assuring the stable manipulation for both human and robotic fingertips. By experimental tools, previous research attempted to perceive this phenomenon, but none of them could explain fully dynamic change during this process. In this paper, we propose a dynamic model to investigate the sliding motion of soft fingertips on a plane with friction. The fingertip is virtually comprised of a finite number of elastic compressible and bendable cantilevers whose free ends act as infinitesimal contact points. The contact surface is afterward meshed using finite element method based on coordinates of contact points. By introducing Coulomb's law and contact compliance into each contact point, we are able to assess the frictional characteristic during sliding motions of the fingertip. We also successfully described dynamically localized displacements on the contact surface during stick-slip transition, which are typical of the sliding motion of a soft fingertip. This model can be applied to different typical shapes of robotic fingertip. In this paper, we use two models of fingertips: cylindrical, and hemispherical ones. In addition, we conducted experiments to valid proposed simulation, including force/moment and vision setups.

  • Real-Time Inverse Dynamics Learning for Musculoskeletal Robots Based on Echo State Gaussian Process Regression

    A challenging topic in articulated robots is the control of redundantly many degrees of freedom with artificial muscles. Actuation with these devices is difficult to solve because of nonlinearities, delays and unknown parameters such as friction. Machine learning methods can be used to learn control of these systems, but are faced with the additional problem that the size of the search space prohibits full exploration in reasonable time. We propose a novel method that is able to learn control of redundant robot arms with artificial muscles online from scratch using only the position of the end effector, without using any joint positions, accelerations or an analytical model of the system or the environment. To learn in real time, we use the so called online "goal babbling" method to effectively reduce the search space, a recurrent neural network to represent the state of the robot arm, and novel online Gaussian processes for regression. With our approach, we achieve good performance on trajectory tracking tasks for the end effector of two very challenging systems: a simulated 6 DOF redundant arm with artificial muscles, and a 7 DOF robot arm with McKibben pneumatic artificial muscles. We also show that the combination of techniques we propose results in significantly improved performance over using the individual techniques alone.

  • 1984 References for Vol. 1

    This revised edition of Taylor's classic work on the internal-combustion engine incorporates changes and additions in engine design and control that have been brought on by the world petroleum crisis, the subsequent emphasis on fuel economy, and the legal restraints on air pollution.The fundamentals and the topical organization, however, remain the same. The analytic rather than merely descriptive treatment of actual engine cycles, the exhaustive studies of air capacity, heat flow, friction, and the effects of cylinder size, and the emphasis on application have been preserved. These are the basic qualities that have made Taylor's work indispensable to more than one generation of engineers and designers of internal-combustion engines, as well as to teachers and graduate students in the fields of power, internal-combustion engineering, and general machine design.Charles Fayette Taylor is Professor of Automotive Engineering Emeritus at MIT. He directed the Sloan Automotive Laborator es at MIT from 1926 to 1960

  • Agreement Supplements

    This chapter contains sections titled: Ability to Work in Interdisciplinary Teams, Academic, Access, Administration, Agreements, Ambiguity is Essential for Professional Work, Annotations, Application Builders, Archives, Artifacts, Assessment, Authoritative Versus Authoritarian, Avoiding the Florentine Dilemma, Bachelor of Information and Instructional Design, Boundary Issues, Cataloging Relationships, Circulation, Co-Learning, Collection Development, Communications, Community as Collection, Computer Science, Constructivism, Conversants, Conversation Theory, Core Skills, Core Values, Creating a New Social Compact, Creating an Agenda, Credibility, Curriculum of Communication And Change Over Traditional Ideas of Leadership, Death of Documents, Democracy and Openness Overshadowed by Technology, Department of Justice, Dialectic Theories, Different Communities Librarians Serve, Digital Environments, Education, Embedded Librarians, Entailment Mesh, Entrepreneurium, Environment, Ethics, Every Course Has Symposia and Practica, Evolution of Integrated Library Systems, Evolution of Systems, Evolution of the Social Compact, Extrinsic, Free Library of Philadelphia, From Authority to Reliability, From School to School of Thought, Gaming, Getting Past the L V I Debate, Go to the Conversation, Government, Growing Importance of Two-Way Infrastructure, Humanities, Hybrid Environments, Importance of a Worldview, Importance of Action and Activism, Importance of Technical Skills, Importance of Theory and Deep Concepts, Increase Friction in the Process, Information Organization, Information Science, Informatidn Seeking, Information Services, Infrastructure Providers, Innovation, Innovation Versus Entrepreneurship, Institute for Advanced Llbrarianship Idea, Intellectual Freedom and Safety, Intellectually Honest Not Unbiased, Internet Model Example, Intrinsic, Invest in Tools of Creation Ove r Collection of Artifacts, Issues of Institutional Repositories, Knowledge, Knowledge is Created Through Conversation, L0, L1, Language, Leadership, Learning, Learning Theory, Libraries Are in the Knowledge Business, Therefore the Conversation Business, Library Instruction, Limitations of Tagging, LIS Education, Longitude Example, Mapping Conversations, Massive Scale, Means of Facilitation, Meeting Spaces, Members Not Patrons or Users, Memory, Motivation, Motivation Theories, Music Center, Need for an Executive Doctorate, Need for an Expanded Definition of Literacy, Need to Expand the Educational Ladder, Obligation of Leadership, Open Source, Openness, Paraprofessionals, Physical Environments, Policy, Postmodernism, Pressure for Participation, Public, Public Service, Publisher of Community, Recognize a School as a Participatory Network, Reference, Reference Extract, Relation to Other Domains, Risks of Data, Scapes, Scholarly Communications, School, School Information Management Systems, Selective Dissemination of Information, Sense-Making, Service, Service is Not Invisibility, Shared Shelves With the Community, Shelving, Shift in Innovation from Academy to Ubiquity, Social Justice Issues, Social Literacy, Social Network Sites, Source Amnesia, Special, System View, TCP-IP, The Mission Of Librarians is to Improve Society Through Facilitating Knowledge Creation in Their Communities, Topical Centers With Curriculum, Transition of Traditional Skills, True Facilitation Means Shared Ownership, Truly Distributed Digital Library, User, User Systems, User-Based Design, Vital Roles of Mentors, Warehousing Functions, Web 2.0, Writing Center

  • A Simple, Adaptive Locomotion Toy-System

    In order to successfully transfer biological principles to engineering problems, it is important to study the fundamental properties of biological systems. The goal is to arrive with useful abstractions that are (1) implementable, (2) testable by experiments and sample implementations, (3) retain the, for an engineering point of view, essential good properties of the biological systems. At BIRG, we are interested in the fundamentals of locomotion control and their possible applications to robotics. In this article, we present a simple, adaptive locomotion toy system that is of oscillatory nature. It is composed of two parts: an adaptive controller based on a nonlinear oscillator, and a mechanical system made of two blocks attached by an active and a passive spring. The controller is designed to be robust against perturbations, and to adapt its locomotion control to changing body kinematics or added external load. The tools to develop such a toy-system are a 2-scale nonlinear dynamical system, namely a Hopf oscillator with adaptive frequency, and a understanding of synchronization behavior of oscillators. A further central ingredient that will be discussed is the concept of asymmetric friction forces. We show that the system possesses several critical parameters. It is illustrated that the bifurcations connected with some of these parameters can be identified as non-smooth phase transitions and power law behavior. Links to biology and possible applications to robotics are discussed.

  • Formation of Morphology anti Morpho-Function in a Linear-Cluster Robotic System

    This study focuses on the morphology formation and morpho-function in a linear-cluster robotic system which is composed of linearly connected autonomous mobile modules. The equations of motion of the linear-cluster robotic system are derived under dynamic interaction with its physical environment, and computer simulations are performed for two cases of physical environment condition: one is for two dimensional friction plane and the other for a maze-like arena surrounded with walls. When each module has simple wIes of locomotion determined according to the direction of interaction force acting from a neighboring module, various morphologies have been formed. When adding intelligence of obstacle avoidance and locomotion towards the object and goal signals to the modules, the linear-cluster robotic system has achieved the task to find the object. enclose it and then carry the object to the goal destination by changing its morphology. Finally some of the future works are discussed from the view of balancing the complexities of morphology and intelligence in cluster robotic systems.

  • VisionBased Objective Selection for Robust Ballistic Manipulation

    The use of visual measurement for high-speed and high-precision robotic tasks requires careful analysis of the fundamental properties of the sensing paradigms chosen. In this work we analyze the information generated by a state estimator for a target moving object that is to be intercepted by a robotic manipulator. Selection of potential interaction objectives is carried out through analysis of the data stream from the visual system. The underlying sensing problem is designed for a principally unstructured environment under fixed-camera visual measurement. The test domain is chosen to be ballistic manipulation of a sliding object on a low-friction planar surface: the air hockey problem.

  • Friction

    This chapter contains sections titled: Coulomb's Law, Single degree-of-freedom problems, Planar single contact problems, Graphical representation of friction cones, Static equilibrium problems, Planar sliding, Bibliographic notes



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