Sökning: "Rolling sliding"

Visar resultat 1 - 5 av 45 avhandlingar innehållade orden Rolling sliding.

1. 1. On wear in rolling/sliding contacts

   Författare :Rickard Nilsson; Ulf Olofsson; I. Sherrington; KTH; []
   Nyckelord :Technology; wear; rolling; sliding; contact; environment; TEKNIKVETENSKAP; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The aim of this thesis is to increase the understanding of wear in rolling/sliding contacts such as the wheel-rail contact for railroads and the roller-washer contact for roller bearings. The Stockholm commuter train network has been the subject of papers A and B in this thesis in which the wear and surface cracks on rails has been observed for a period of three years. LÄS MER

3. 2. On the influence of surface roughness on rolling contact forces

   Författare :Oskar Lundberg; Ines Lopez Arteaga; Leif Kari; Matthias Kröger; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rolling contact; Surface roughness; Contact forces; Contact modelling; Friction; Road; Asphalt; Substrate; Test-rig; Sliding; Stick–slip; Tyre; Rubber; Tread-block; Wheel–rail interaction; Vehicle and Maritime Engineering; Farkostteknik;

   Sammanfattning : Road vehicle tyres, railway wheels and ball bearings all generate rolling contact forces which are transferred within a finite area of contact between the rolling element and the substrate. Either it is visible or not for the human eye, a certain degree of roughness is always present on the contacting surfaces and it influences the generation of both vertical and lateral contactforces. LÄS MER

4. 3. Studies on dynamic response caused by contact between rough surfaces

   Författare :Mikael Pärssinen; KTH; []
   Nyckelord :contact; rolling; roughness; sliding; surface; vibration;

   Sammanfattning : .... LÄS MER

5. 4. Friction and wear in rolling and sliding contacts

   Författare :Christer Spiegelberg; Sören Andersson; Roland Larsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tribology; friction; wear; rolling and sliding contacts; Engineering mechanics; Teknisk mekanik;

   Sammanfattning : Mechanical products are always expected to perform better, last longer, be more environmentally friendly and preferably cost less. Rolling and sliding contacts are found in many mechanical products, and friction and wear in the contacts have a direct impact on the products’ ability to meet these demands. LÄS MER

7. 5. Friction in rolling and sliding contacts

   Författare :Christer Spiegelberg; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER