Wiki Tag: rough surfaces

power spectral density of a rough surface

Power Spectral Density of Rough Surfaces

26.08.2018 tribonet

Roughness is known to be an important factor in friction, wear and related performance of the machine parts. It was shown recently that Power Spectrum Density (PSD) can be used as a metric to describe […]

Friction: The Key to Rock Climbing

18.07.2017

This article explains the vital role Friction has to play in Rock Climbing. Thanks to Richard Jones and Glen Harding for their input. Friction is the magic ingredient in bouldering and rock climbing. It’s what [...]
Small flying robots pull objects up to 40 times their weight using adhesion

03.12.2018

Researchers from EPFL and Stanford have developed small drones that can land and then move objects that are 40 times their weight, with the help of powerful winches, gecko adhesives and microspines. A closed door [...]
Phase-Switching Liquids Frost 300 Times Longer Compared to Known Anti-Icing Coatings

08.04.2019

Ice and frost formation on surfaces afflicts various energy and transportation industries worldwide, causing economic losses in billions of dollars annually. Most techniques to prevent frost and ice formation on surfaces rely heavily on heating [...]
In Situ Nanopolishing (ISN): A New Lubrication Paradigm Aimed at Permanent Surface Perfection

23.04.2016

All conventional lubricants borne of classic hydrodynamic theory are designed to provide lubricity. Inherent in the desire to provide lubricity to mechanical systems is the desire to protect the interacting metal surfaces from wear. Much [...]
Serendipitous discovery may lead to eco-friendly lubricant

15.11.2018

Seed oil components of an ornamental flower could provide a direct pathway for designing a new class of environmentally friendly lubricants. Researchers at the School of Science at IUPUI identified the compound in the seed [...]