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Rotational Stiffness at Ridges of Timber Folded-plate Structures
IABSE Reports, 2015<p>Folded plate structures propose an efficient design employing thin Laminated Veneer Lumber panels. Inspired by the Japanese furniture joining technique, the Multiple Tab-and-Slot Joint was developed as a solution for multi-assembly of timber panels with non-parallel edges, requiring no adhesive or metal joints.
Stéphane Roche +2 more
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Journal of Shoulder and Elbow Surgery, 2020
Stiffness and retear are 2 common complications of rotator cuff repair. McNamara et al found that postoperative stiffness was associated with lower retear rates at 6 months. This study aimed to determine if stiffness after rotator cuff repair protects the individual from retear up to 9 years after surgery.Two groups of patients, 69 with stiff and 63 ...
Christopher R, Millican +2 more
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Stiffness and retear are 2 common complications of rotator cuff repair. McNamara et al found that postoperative stiffness was associated with lower retear rates at 6 months. This study aimed to determine if stiffness after rotator cuff repair protects the individual from retear up to 9 years after surgery.Two groups of patients, 69 with stiff and 63 ...
Christopher R, Millican +2 more
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The factors affecting stiffness occurring with rotator cuff tear
Journal of Shoulder and Elbow Surgery, 2012Stiffness after a rotator cuff tear is common, and it affects postoperative prognosis. This study aims to define the factors affecting stiffness that accompanies rotator cuff tear.From June 2002 to May 2009 (84 months), 143 patients underwent arthroscopic rotator cuff repair. Of these, 119 were enrolled as subjects in this study.
Seung-Suk, Seo +4 more
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Prevention of Shoulder Stiffness after Rotator Cuff Repair
Clinical Orthopaedics & Related Research, 2005Predisposing factors for shoulder stiffness after rotator cuff repair have yet to be determined. The potential for recovery of range of motion and amelioration of pain in patients with this complication also remains unclear. Accordingly, data collected prospectively for 209 patients with a primary rotator cuff repair were retrospectively reviewed.
Kim, Trenerry +2 more
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The flexural or rotational stiffness of testing machines
Matériaux et Constructions, 1978The flexural or rotational stiffness of testing machines is defined and its significance in testing is outlined. A method of estimating rotational stiffness of machines is described.
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Stiff string approximations in Rayleigh–Ritz method for rotating beams
Applied Mathematics and Computation, 2013zbMATH Open Web Interface contents unavailable due to conflicting licenses.
R. Ganesh, Ranjan Ganguli
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The Dynamic Stiffness Matrix Method in the Analysis of Rotating Systems
Tribology Transactions, 1991The dynamic stiffness method has been applied to the evaluation of the natural frequencies of rotating systems. To this purpose, a rotating “Rayleigh beam,” defined by adding the effect of the rotary inertia and the gyroscopic effects to the Bernoulli-Eider beam, has been formulated and its dynamic stiffness matrix is presented in this paper.
Curti G. +2 more
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A plane hybrid element with rotational d.o.f. and adjustable stiffness
International Journal for Numerical Methods in Engineering, 1987AbstractA simple formulation of a nine d.o.f plane triangle is achieved by the assumed‐stress hybrid approach. The element has two translations and the rotation about a normal to the plane as d.o.f. at each node. Performance of the element is shown to be good.
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The research of zero torsional stiffness rotating gyroscope
2010 The 2nd International Conference on Industrial Mechatronics and Automation, 2010A kind of gyroscope which used to detect yaw angular velocity of the rotating carrier is designed and produced in the “zero torsional stiffness” condition. To analysis the gyroscope's working principle and establishing the mathematic model of the gyroscope, then designing and producing the gyroscope's sensitive structure of zero-torsion stiffness ...
Hong-wei Wang +4 more
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Stiffness modeling, identification, and measuring of a rotating spindle
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2019The stiffness of a spindle at high speeds has a significant effect on the quality of the cutting surface and the machining accuracy. However, the spindle stiffness is difficult to be detected directly when the spindle is rotating, and the measured stiffness values are usually coupled with other parts of the spindle–tool system (such as toolholder ...
Liping Wang +4 more
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