Search for dissertations about: "contact deformation"

Showing result 1 - 5 of 147 swedish dissertations containing the words contact deformation.

  2. 1. Deformation, stresses and elastohydrodynamic film formation in soft contacts

    Author : Antonio Gabelli; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rivlin s function; lip seal; seal deformation; soft contact; magnetic fluid; contact force; film thickness; bearing cage; rubber layer;

    Abstract : .... READ MORE

  4. 2. A study on contact fatigue mechanisms

    Author : Bo Alfredsson; KTH; []
    Keywords : contact fatigue mechanism; spall; spalling; surface crakc; sub-surface crack; elesto-plastic indentation; contact compliance measurement; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Surfaces subjected to rolling and sliding contacts maysuffer from contact fatigue. This thesisdeals with solidmechanic aspects of contact fatigue including the descriptionand verificationof explaining mechanisms. The new mechanism forsurface initiated contact fatigue is basedon tensile surfacestresses from local asperity contacts. READ MORE

  5. 3. Modelling of Dynamic Contact - Exemplified on the Tyre/Road Interaction

    Author : Krister Larsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tyre dynamics; rolling noise; rolling contact; dynamic contact; tyre road noise; tyre road interaction;

    Abstract : Noise is a severe problem in modern society. Road traffic noise is a substantial contributor and the tyre/road interaction is the main noise source for normal driving conditions. Despite more than 30 years of research, there is a lack of quantitative tyre/road noise prediction models. READ MORE

  6. 4. Modelling Interfacial Details in Tyre/Road Contact — Adhesion Forces and Non-Linear Contact Stiffness

    Author : Patrik Andersson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; rough surface; tyre dynamics; tyre road noise; adherence force; adhesion forces; tyre road interaction; dynamic contact; non-linear contact stiffness;

    Abstract : Rolling resistance, noise generation, and wear are all determined by the interaction process between the rolling automotive vehicle tyre and the road. A deep understandingof the interaction process is needed for optimisation aiming at reducing these effects. READ MORE

  7. 5. G-structures and Families of Isotropic Submanifolds in Complex Contact Manifolds

    Author : Patrik Hellgren; Sergei Merkulov; Henrik Pedersen; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Differential geometry; twistor; G-structures; deformation; MATHEMATICS; MATEMATIK; matematik; Mathematics;

    Abstract : We study a generalized twistor correspondence between irreducible G-structures (with torsion in general) on complex manifolds Z and moduli spaces M of deformations of isotropic homogeneous submanifolds X in complex contact manifolds Y.For any irreducible G-structure on a complex manifold M we present an explicit construction of a contact manifold (a generalized twistor space) Y with contact line bundle L and a family F of isotropic submanifolds X in Y having M as its moduli space. READ MORE