Results 11 to 20 of about 2,607,929 (307)

Fiber-Optic Sensors for Measurements of Torsion, Twist and Rotation: A Review [PDF]

open access: yesSensors, 2017
Optical measurement of mechanical parameters is gaining significant commercial interest in different industry sectors. Torsion, twist and rotation are among the very frequently measured mechanical parameters. Recently, twist/torsion/rotation sensors have
Vedran Budinski, Denis Donlagic
doaj   +2 more sources

Mechanical Design of AM Fabricated Prismatic Rods under Torsion [PDF]

open access: yesMATEC Web of Conferences, 2017
We study the stress-strain state of viscoelastic prismatic rods fabricated or repaired by additive manufacturing technologies under torsion. An adequate description of the processes involved is given by methods of a new scientific field, mechanics of ...
Manzhirov Alexander V.
doaj   +2 more sources

Singularity analysis of zero-torsion parallel mechanisms [PDF]

open access: yes2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008
This paper presents the singularity analysis of four 3-DOF symmetric zero-torsion parallel mechanisms. These mechanisms are composed of three identical legs ending with a spherical joint that is constrained to move in one of three equally spaced plane intersecting at one line.
Sébastien Briot, Ilian A. Bonev
openaire   +4 more sources

Continuum mechanics with torsion [PDF]

open access: yesContinuum Mechanics and Thermodynamics, 2019
New Section 10 on angular momentum conservation has been added.
Peshkov I., Romenski E., Dumbser M.
openaire   +3 more sources

Left Ventricular Torsional Mechanics in Uncomplicated Pregnancy [PDF]

open access: yesClinical Cardiology, 2011
AbstractBackground:Alterations in left ventricular (LV) twist (torsion) and untwist have been described for a variety of physiologic and pathologic conditions. Little information is available regarding changes in these parameters during normal pregnancy.Hypothesis:Pregnancy is associated with significant changes in LV torsional mechanics.Methods:Left ...
Andrew J, Yoon   +6 more
openaire   +2 more sources

Mechanics of ventricular torsion

open access: yesJournal of Biomechanics, 1996
Recent research suggests that left ventricular torsion is an important indicator of cardiac function. We used two theoretical models to study the mechanics of this phenomenon: a compressible cylinder and an incompressible ellipsoid of revolution. The analyses of both models account for large- strain passive and active material behavior, with a muscle ...
L A, Taber, M, Yang, W W, Podszus
openaire   +2 more sources

Kalker’s coefficient c11 and its influence on the damping and the retuning of a mechanical drive torsion system of a railway vehicle

open access: yesActa Polytechnica CTU Proceedings, 2022
Within the research of electromagnetically excited torsion oscillations in the mechanical part of traction drive systems of modern railway vehicles, which has been realized at the Faculty of mechanical engineering at the CTU in Prague, there are two ...
Vojtěch Dybala
doaj   +1 more source

Behaviour of steel-reinforced concrete columns under combined torsion based on ABAQUS FEA

open access: yes, 2020
A computational model for studying the mechanical performance of steel-concrete columns under combined torsion is established via ABAQUS. The model is validated by experimental results. Through numerical simulations, the influence of the axial load ratio,
Wu, Linmei, Zhenming, Li, Xiaoluo, Cao
core   +2 more sources

Torsion-free groups with indecomposable holonomy group. I [PDF]

open access: yes, 2001
We study the torsion-free generalized crystallographic groups with indecomposable holonomy group which is isomorphic to either C-p, or C-p x C ...
Bódi, Viktor   +5 more
core   +1 more source

Design, dynamics, and dissipation of a torsional-magnetic spring mechanism

open access: yesMechanical Systems and Signal Processing, 2022
We present an analytical and experimental study of torsional magnetic mechanism where the restoring torque is due to magnetic field interactions between rotating and fixed permanent magnets. The oscillator consists of a ball bearing-supported permanent magnet, called the rotor, placed between two fixed permanent magnets called the stators.
Ali Kanj   +5 more
openaire   +3 more sources

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