Results 271 to 280 of about 112,676 (303)
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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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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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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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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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Effect of Posttensioning on Rotational Stiffness of Wood Joints
Journal of Structural Engineering, 1995The moment-rotation behavior of full-size Warren truss timber connections, using posttensioning as a possible reinforcement scheme, was investigated and compared with the current method of using gu...
J. H. P. Quenneville, M.-A. Erki
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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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Rotational strength and stiffness of tubular scaffold connectors
Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2009The most common form of access scaffold in the UK is tube-and-fitting. The assumption of zero rotational stiffness and strength in putlog connections is one of the factors leading to a reduction in the performance of these scaffolds when designed according to the latest European codes EN 12810 and EN 12811.
M. S. Abdel-Jaber +3 more
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Determining rotational stiffness of flange-web junction of pultruded GFRP I-sections
Composite Structures, 2020TianQiao Liu, Jia-Qi Yang, Peng Feng
exaly