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Investigation of the relative motion that develops between the surfaces of a pair of inter-rolling bodies, one of which is supported by the other whenever a tangential force is applied to the supported body /Wight, Hugh Humphrey. January 1961 (has links) (PDF)
Thesis--University of Adelaide, 1961. / Typewritten.
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Contact analysis of nominally flat surfacesShellock, Matthew R. January 2008 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, June 2008. / Thesis Advisor(s): Kwon, Young W. "June 2008." Description based on title screen as viewed on August 26, 2008. Includes bibliographical references (p. 51). Also available in print.
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Coupled principles for computational frictional contact mechanicsKaufman, Daniel M., January 2009 (has links)
Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Computer Science." Includes bibliographical references (p. 132-139).
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Nano-mechanical measurements : surface and environmental effectsMann, Adrian B. January 1995 (has links)
No description available.
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Nonlinear dynamics and contact fracture mechanics of high frequency percussive drillingAjibose, Olusegun K. January 2009 (has links)
The influence of three elastic contact models on the dynamics of the drilling module is studied by representing the percussive drilling process as a drifting oscillator. The Kelvin-Voigt, Hertz stiffness and nonlinear stiffness and damping models were considered. The local dynamics of the system were found to be almost identical for the three models. Hence the Kelvin-Voigt system adequately describes the local dynamics of the system. However, for larger frequency and higher damping the behaviour of the three models differed. Experimental indentation studies were carried out on sandstones samples using static and dynamic loading. A force penetration relation was obtained for the loading and unloading phases of the indentation using a conical and spherical indenter under quasi-static conditions. Conical indentation tests were carried out in dynamic conditions. Both experiments showed that the force penetration relationship that could describe the contact model were closer to that obtained for the elastic-plastic indentation of ductile materials. The dynamic model for the drilling module was developed using an elastic plastic model for conical and spherical indenter. In addition, the model’s parameters were modified to those obtained from the experiments and used for the comparison with the results obtained for the elastic plastic model. The result obtained suggested a topological similarity between the experimental and theoretical parameters. It was also noted that the results suggested that the conical indenter appeared to be more efficient of the two indenter types considered. Finally, the rock fracture as a result of its contact with the drill-bit insert was investigated. For simplicity, the inserts are considered as flat punch and the contact problem is treated as a plane strain problem. Experimental studies were also carried out to determine the crack initiation angle in sandstone.
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Contact Sensing from Force MeasurementsBicchi, Antonio, Salisbury, J. Kenneth, Brock, David L. 01 October 1990 (has links)
This paper addresses contact sensing, i.e. the problem of resolving the location of a contact, the force at the interface and the moment about the contact normals. Called "intrinsic'' contact sensing for the use of internal force and torque measurements, this method allows for practical devices which provide simple, relevant contact information in practical robotic applications. Such sensors have been used in conjunction with robot hands to identify objects, determine surface friction, detect slip, augment grasp stability, measure object mass, probe surfaces, control collision and a variety of other useful tasks. This paper describes the theoretical basis for their operation and provides a framework for future device design.
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Optimization-based analysis of rigid mechanical systems with unilateral contact and kinetic friction /Gomez, Miguel J., January 2008 (has links)
Thesis (Ph. D.)--University of Washington, 2008. / Vita. Includes bibliographical references (p. 91-97).
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Surface separation and contact resistance considering sinusoidal elastic-plastic multiscale rough surface contactWilson, W. Everett, Jackson, Robert L., January 2008 (has links)
Thesis--Auburn University, 2008. / Abstract. Vita. Includes bibliographical references (p. 77-79).
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Nonlinear dynamics and contact fracture mechanics of high frequency percussive drillingAjibose, Olusegun K. January 2009 (has links)
Thesis (Ph.D.)--Aberdeen University, 2009. / Title from web page (viewed on Mar. 26, 2010). Includes bibliographical references.
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A HYBRID ELASTICITY AND FINITE ELEMENT METHOD FOR THREE-DIMENSIONAL CONTACT PROBLEMS WITH FRICTIONELKILANI, YASSER SHAWKI 30 June 2003 (has links)
No description available.
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