Concept

Plain bearing

Related publications (182)

Metal-bearing and trifluoromethyl-substituted pyrimidines: generation and functionalization

5-Pyrimidyllithium species are fairly stable when the metal is flanked by two electron-withdrawing substituents such as trifluoromethyl and chlorine or bromine. Thus, the corresponding 5-carboxylic acids are produced in high yields from 4,5-dibromo-6-(trif ...

2006

Multi-Objective Optimisation of Herringbone Grooved Gas Bearing Supporting a High Speed Rotor, Taking into account Rarefied Gas and Real Gas Effects

Daniel Favrat, Jürg Alexander Schiffmann

Currently the herringbone grooved journal bearing (HGJB) has applications in the domain of small, low power energy related applications, where high rotational speeds are required for reaching reasonable efficiency and where standard oil lubricated bearings ...

2006

Shear Strength of RC Bridge Deck Cantilevers

Rui Vaz Rodrigues

An experimental and theoretical investigation of the shear strength of reinforced concrete slabs without shear reinforcement is under way at the Ecole Polytechnique Fédérale de Lausanne. The first part of the program consists of 6 tests on two large scale ...

6th International PhD Symposium in Civil Engineering, IBK Publikation SP-0152006

Friction Modeling of a High-Precision Positioning System

Alireza Karimi, Roland Longchamp, Alain Curnier, Marc Kunze, Sébastien Thiery

Friction modeling of a high-precision positioning system using linear permanent magnet synchronous motors is investigated. The friction force is measured precisely by some specific experiments to eliminate the parasitic ripple force. The experimental data ...

2006

Chiral Phosphites and Phosphoramidites Based on the Tropane Skeleton and Their Application in Catalysis

Nicolai Cramer

Chiral BINOL phosphorochloridites were esterified and amidated with enantiopure 6-hydroxytropinone [6-hydroxy-8-azabicyclo[3.2.1]octan-3-one] cyclic acetal to yield chiral bidentate and monodentate phosphite-phosphoramidite ligands for copper-catalyzed asy ...

American Chemical Society2006

Accurate fatigue stress determination in concrete railway bridges considering rail track - structure interaction

Eugen Brühwiler, Andrin Herwig

So-called “non-load bearing” parts of (railway) bridges increase the stiffness and decrease the stresses in short span bridge structures. The rail track, consisting of ballast, sleepers and rails, has a non-linear behaviour and its rigidity depends on the ...

2006

Geodesic Lines on Free-Form Surfaces - Optimized Grids for Timber Rib Shells

Yves Weinand, Claudio Pirazzi

In addition to glue-laminated timber, screw-laminated timber has increasingly been applied to rib shells. The ribs are made from laminated timber boards, which are joined together with the aid of pin-like fasteners such as screws or nails. The current rese ...

2006

High-Speed Low Power Radial Turbocompressor For Oil-Free Heatpumps

Daniel Favrat, Jürg Alexander Schiffmann

The presence of oil in domestic heat pumps is a hindrance, particularly for enhanced surface evaporators and for advanced concepts based on two-stage cycles. Very compact oil-free dynamic compressor directly driven by high speed electric motors and support ...

2006

Theoretical Design of a High-Speed Low Power Radial Turbocompressor

Daniel Favrat, Jürg Alexander Schiffmann

High-speed bearings and electrical motors are gradually getting available. This is of particular interest for the application of thermal turbomachinery. The availability of high speed bearing and motor components opens the way to new applications for low p ...

2005

Precise Bearing Angle Measurement Based on Omnidirectional Conic Sensor and Defocusing

Roland Siegwart, Davide Scaramuzza

Recent studies on multi-robot localization have shown that the uncertainty of robot location may be considerably reduced by optimally fusing odometry and the relative angles of sight (bearing) among the team members. However, the latter requires the capabi ...

2005

Graph Chatbot

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.