Results 21 to 30 of about 27,598 (296)

Modelling, simulation and experiment of the spherical flexible joint stiffness [PDF]

open access: yesMechanical Sciences, 2018
The spherical flexible joint is extensively used in engineering. It is designed to provide flexibility in rotation while bearing vertical compression load. The linear rotational stiffness of the flexible joint is formulated.
S. Li   +6 more
doaj   +1 more source

Passive Stiffness of Coupled Wrist and Forearm Rotations

open access: yesAnnals of Biomedical Engineering, 2014
Coordinated movement requires that the neuromuscular system account and compensate for movement dynamics. One particularly complex aspect of movement dynamics is the interaction that occurs between degrees of freedom (DOF), which may be caused by inertia, damping, and/or stiffness. During wrist rotations, the two DOF of the wrist (flexion-extension and
Will B, Drake, Steven K, Charles
openaire   +3 more sources

A Measurement Device for Rotational Stiffness of the Eye [PDF]

open access: yesJournal of Medical Devices, 2008
Objective: A measurement of rotational stiffness of the human eye is necessary, without exerting forces to the eye. Background: Strabismus is a disorder in which the visual axes of the eyes are misaligned. In strabismus surgery, the muscles that drive the eye are altered to compensate for the deviating angle of the eye.
Thijs R. de Graaf   +5 more
openaire   +1 more source

Infinitely stiff composite via a rotation-stabilized negative-stiffness phase [PDF]

open access: yesApplied Physics Letters, 2011
We show that an elastic composite material having a component with sufficiently negative stiffness to produce positive-infinite composite stiffness can be stabilized by the gyroscopic forces produced by composite rotation.
Kochmann, D. M., Drugan, W. J.
openaire   +2 more sources

Rotational Behavior of Column Footing Joint and Its Effect on the Dynamic Characteristics of Traditional Chinese Timber Structure

open access: yesShock and Vibration, 2018
Chinese heritage timber buildings are of high historical and cultural values. The column footing joint is an important connection influencing the structural performance under dynamic load.
Shujie Qin, Na Yang, Lu Dai
doaj   +1 more source

Experimental Study on the Rotational Stiffness of Pocket Type Scaffolding Connection According to the Rotation Direction

open access: yesApplied Sciences, 2023
The rotational stiffness of the pocket-type connection used in system scaffolding to join horizontal members and vertical members was evaluated. To investigate the rotational stiffness of connections when subjected to bending moments in the downward ...
Dae-Hyun Chung, Jeong-Hun Won
doaj   +1 more source

Rotational Stiffness of Timber-to-Timber Connections with Self-Tapping axially loaded Screws

open access: yes, 2023
Self-tapping axially loaded screws provide high load-carrying capacity and great stiffness. Due to these advantages, they were preferably applied to realise connections for tension members.
Frese, Matthias, Egner, Sebastian
core   +1 more source

Influence of the column web panel behaviour on the characteristics of a beam-to-column joint

open access: yesJournal of Civil Engineering and Management, 2013
The paper reviews the importance of evaluation of actual joint behaviour during the design and manufacture of frame construction. The authors applied the component method, which is used in Eurocode 3.
Alfonsas Daniūnas, Kęstutis Urbonas
doaj   +1 more source

Stress rotation – impact and interaction of rock stiffness and faults [PDF]

open access: yesSolid Earth, 2021
Abstract. It has been assumed that the orientation of the maximum horizontal compressive stress (SHmax) in the upper crust is governed on a regional scale by the same forces that drive plate motion. However, several regions are identified where stress orientation deviates from the expected orientation due to plate boundary forces (first-order stress ...
openaire   +4 more sources

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