Results 111 to 120 of about 1,447 (166)

Dynamic Instability and Resonances of Geometrically Imperfect Plates

Volume 1D: 16th Biennial Conference on Mechanical Vibration and Noise, 1997
Abstract The parametric resonance and other dynamic instabilities of a rectangular plate with initial geometric imperfections acted upon by parametric excitation have been investigated. The temporal equations of motion describing the non-linear behavior of these plates for large oscillations are solved using a direct integration. Results
Germain L. Ostiguy, Lyne St-Georges
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Theory of Imperfections of Three-Dimensional Tuning Plate Gyroscope. Part II: Geometric Imperfections

Mechanics of Solids, 2023
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Sedebo, G. T., Shatalov, M. Y., Joubert, S. V., Alhaji, T., Kekana, M. C.   +4 more
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Stability of Geometrically Imperfect General-View Shells

International Applied Mechanics, 2000
The authors discuss a numerical algorithm which allows to study the loading curves in order to find out the singular points which are the boundary and bifurcation points. As example the stability of a finite panel is studied with allowance for the form imperfection.
Gotsulyak, E. A., Prusov, D. È., Aranchii, N. E.   +2 more
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Geometrically nonlinear finite-element models for thin shells with geometric imperfections

International Applied Mechanics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gotsulyak, E. A., Luk'yanchenko, O. K., Kostina, E. V., Garan, I. G.   +3 more
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Geometrical imperfection and adiabatic shear banding

International Journal of Impact Engineering, 2008
Abstract This work addresses the effect of small geometrical imperfections on adiabatic shear band (ASB) formation. The separate effect of the length and radius of short notches is systematically investigated in AM50 and Ti6Al4V alloys, using shear compression specimens.
D. Rittel, Z.G. Wang, A. Dorogoy
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On the Geometrical Imperfections in Ball Bearings

Journal of Tribology, 1988
Computer simulations of dynamic bearing performance, as obtained by the computer code ADORE, are used to develop correlations between key performance parameters and geometrical imperfections in both oil and solid lubricated ball bearings. The influence of race out-of-roundness, variation in groove curvatures and the variation in ball size, is modeled ...
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Measurement of the geometric initial imperfections in diaphragms

Thin-Walled Structures, 1992
Abstract A method, using a new surveying technique, is used for the measurement of the geometric initial imperfections in box girder diaphragms. The method, accurate to ±0·1 mm , may be used on diaphragms contained in a box girder where contact with the surface of the diaphragm is difficult or impossible or inadvisable due to the presence of ...
T.H.G. Megson, G. Hallak
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Post-Buckling of Geometrically Imperfect Plates

Journal of the Structural Division, 1972
Explicit expressions are derived for the collapse and elastic post-buckling of simply supported, geometrically imperfect plates with stress-free edges. For the purposes of design, such plates can be taken as representative of the stiffened compression elements of thin-walled structural sections.
Ralph G. Dawson, Alastair C. Walker
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Deformations of Geometrically Imperfect Beams

Journal of the Structural Division, 1969
The effects of a number of representative types of imperfection on the elastic deformations of simply supported I-beams with either equal end moments or central concentrated load are investigated, and it is shown that each of these imperfections can be approximated by an equivalent sinusoidal initial crookedness or twist.
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Stability of Euler-Bernoulli Beams with Geometric Imperfection

6th International Students Science Congress Proceedings Book, 2022
In this study, we have focused on slightly curved beams which can be used in various fields such as bridges, sensors, pipes, roofs etc. Beams with curvature can be classified as slightly curved or curved only. In slightly curved beams, curvature and beam’s displacement are considered in the same order.
Pelin Keskin Şen, Buse Bozkaplan, Berra Gültekin Sınır   +2 more
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