Rubber. Determination of frictional properties

2000 ◽  
Keyword(s):  
Frictional Properties

EXPERIMENTAL DETERMINATION OF FRICTIONAL PROPERTIES AND FAULT STABILITY AT THE HOTTEST ONSHORE GEOTHERMAL PROJECT IN THE UK, THE PORTHOWAN FAULT

2020 ◽  
Author(s):  
Catalina Sanchez roa ◽  
◽  
Thomas M. Mitchell ◽  
Ashley Stanton-Yonge ◽  
Philip Meredith ◽  
...  
Keyword(s):  
Experimental Determination ◽  
Fault Stability ◽  
Frictional Properties ◽  
The Uk

Determination of frictional properties of geotextiles

1987 ◽  
Vol 6 (4) ◽  
pp. 307-314 ◽  
Author(s):  
Eugeniusz Dembicki ◽  
Jacek Alenowicz
Keyword(s):  
Frictional Properties

scholarly journals Optimal object grasp using tactile sensors and fuzzy logic

Robotica ◽  
1999 ◽  
Vol 17 (6) ◽  
pp. 685-693 ◽  
Author(s):  
Venketesh N. Dubey ◽  
Richard M. Crowder ◽  
Paul H. Chappell
Keyword(s):  
Optimal Control ◽  
Fuzzy Logic ◽  
Tactile Sensors ◽  
Frictional Properties ◽  
Fingertip Force ◽  
Unstructured Environment ◽  
Contact Surfaces ◽  
End Effectors ◽  
Contact Parameters

Optimal control of fingertip force during grasping operation by multifingered robotic end effectors is an important consideration. Determination of optimal fingertip force is, however, very complicated due to the involvement of a number of contact parameters at the finger-object interface including the mass of the object and the frictional properties of the contact surfaces. Modelling of various contact parameters is computationally overloading, which may not be tenable in practical situations where objects of different mass and material are available. Also for an unknown and unstructured environment, these properties may not be known in advance. This paper presents a controller based on fuzzy logic which is capable of performing optimal grasp of objects without knowing their mass and frictional properties. The controller also accounts for stability and dynamic aspects of the grasp. The experimental results of the implementation are presented.

scholarly journals Component assembly for determination of elastomeric vulcanizate frictions

2021 ◽  
Vol 1199 (1) ◽  
pp. 012039
Author(s):  
I. Labaj ◽  
D. Ondrušová ◽  
J. Vršková ◽  
M. Pajtášová ◽  
A. Feriancová
Keyword(s):  
Frictional Properties ◽  
Graphical Dependence ◽  
The Individual ◽  
Component Assembly

Abstract This article deals with the design and assembly of a component for determining the frictional properties of elastomeric vulcanizates. The component was design for a universal tensile machine, without needed of intervention to itself machine. The purpose of the work was designing a component in software SolidWorks and its subsequent assembly, as well as individual testing of frictional properties of selected specimens of elastomeric vulcanizates. Before of individual testing, the elastomer blends have to be vulcanised in the form of a block with a constant 16 mm height to ensure the same spring pressure on the specimens in the component. Then, by using rotary knife is from prepared vulcanizate cut a sample with 16 mm diameter. Result from friction properties measurement of samples is force needed to start of movement (shear) of sample over particular type of surface as well as graphical dependence of force (N) on movement of track (mm). From the graphical dependence, it is possible to determine the decrease or increase the force depending on the individual sections of the trajectory.

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