Now showing items 31-40 of 3804
Debris, Roughness and Friction of Stainless Steel Archwires Following Clinical Use
(E H Angle Education Research Foundation, Inc, 2010-05-01)
Objective: To investigate the degree of debris, roughness, and friction of stainless steel orthodontic archwires before and after clinical use.Materials and Methods: For eight individuals, two sets of three brackets (n = ...
Microstructural and Residuals Stress Analysis of Friction Stir Welding of X80 Pipeline Steel Plates Using Magnetic Barkhausen Noise
Friction stir welding is a solid-state joining method conducted under large stress and strain conditions at low peak temperatures when compared to arc welding. Friction stir welding produces a large variety of microstructures ...
Quantum friction between graphene sheets
(American Physical Society, 2017-03-16)
We study the Casimir friction phenomenon in a system consisting of two flat, infinite, and parallel graphene sheets, which are coupled to the vacuum electromagnetic (EM) field. Those couplings are implemented, in the ...
A simplified model for friction compensation in precise feed drives
(Inderscience Enterprises, 2018-11)
Friction is a complex phenomenon with negative effects on the precision of positioning systems. In this work, a single-state friction model for control purposes, aimed to simplify the implementation of control algorithms ...
Modelling an Inertia Wheel Pendulum Benchmark
(Taylor & Francis, 2005-09)
In this paper, modelling and parameter identification of an inertia wheel pendulum benchmark is considered. This is an underactuated mechanical system useful for teaching and research. Attention is focused on deriving a ...
Design and Implementation of Model-Predictive Control With Friction Compensation on an Omnidirectional Mobile Robot
This paper presents and discusses the implementation results of a model-predictive control (MPC) scheme with friction compensation applied to trajectory following of an omnidirectional three-wheeled robot. A cascade structure ...
(MIT OpenCourseWare – Massachussetts Institute of Technology, 2016)
(MIT OpenCourseWare – Massachussetts Institute of Technology, 2011)