Results 101 to 110 of about 267,007 (345)
Static coefficient test method and apparatus [PDF]
, 1976 The static coefficient of friction between contacting surfaces of a plurality of bodies is determined by applying a load to the bodies in a direction normal to the contacting surfaces. Opposite ends of a flexible filament are connected to a load cell and
Haehner, C. L., Tarpley, J. L.
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On the Coefficient of Friction and Adequate Tightening Force for Screw Threads
Transactions of the Japan Society of Mechanical Engineers, 1952 In order to give adequate tightening force for a bolt joint, sometimes a torque wrench is used. The objects of the present paper are to find the true value of coefficient of friction between bolt and nut and to estimate the adequate pre-fastening force which is necessary to decide what torque indication should be given to the torque wrench.
openaire +2 more sources
Predicting Atomic Charges in MOFs by Topological Charge Equilibration
Advanced Functional Materials, EarlyView.An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi +2 more
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Nihon Kikai Gakkai ronbunshuThis paper describes a practical method for estimating the contact condition between wheel and rail using an instrumented wheelset in a railway vehicle.
Shoya KUNIYUKI +4 more
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Eksploatacja i Niezawodnosc - Maintenance and Reliability, 2018 In this study are presented the results of the simulation tests of the friction pairs occurring between the spring leaves while considering a condition of the mating surfaces and an impact of the velocity of their mutual dislocation on the values of the ...
Z. Hryciów, W. Krasoń, J. Wysocki
semanticscholar +1 more source
Bio‐Inspired Molecular Events in Poly(Ionic Liquids)
Advanced Functional Materials, EarlyView.Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley +1 more source
Journal of Materials Research and TechnologyFriction is a considerable boundary condition in aluminum alloy hot extrusion. In this study, ball-on-disc friction tests at temperatures of 25–500 °C were performed to equivalently simulate the interface tribological behaviors between Al–Mg–Si–Cu alloy ...
Zhiwen Liu +4 more
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Friction Characteristics of Post-Tensioned Tendons of Full-Scale Structures Based on Site Tests
Advances in Civil Engineering, 2020 In the design of prestressing concrete structures, the friction characteristics between strands and channels have an important influence on the distribution of prestressing force, which can be considered comprehensively by curvature and swing friction ...
Haoyun Yuan +4 more
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Sliding without slipping under Coulomb friction: opening waves and inversion of frictional force
, 2016 An elastic layer slides on a rigid flat governed by Coulomb's friction law. We demonstrate that if the coefficient of friction is high enough, the sliding localizes within stick-slip pulses, which transform into opening waves propagating at intersonic ...
Yastrebov, Vladislav A.
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Finding the coefficient of rolling friction using a pericycloidal pendulum
IOP Conference Series: Materials Science and Engineering, 2018 The paper presents a method of establishing the coefficient of rolling friction by the study of the damped motion of a pericycloidal pendulum. The pericycloid is the curve described by a point belonging to a mobile circle, which is in pure rolling around
S. Alaci +4 more
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