Cylindrical Shell Model of Helical Type Wire Structures Accounting for Layers’ Interaction

Author(s):  
Alexander N. Danilin ◽  
Sergey I. Zhavoronok
2015 ◽  
Author(s):  
Masami Matsubara ◽  
Nobutaka Tsujiuchi ◽  
Takayuki Koizumi ◽  
Akihito Ito ◽  
Kensuke Bito

2016 ◽  
Vol 2016.54 (0) ◽  
pp. _707-1_-_707-2_
Author(s):  
Yusuke HADA ◽  
Mitsugu KANEKO ◽  
Katsuhide FUJITA ◽  
Takashi SAITO

2005 ◽  
Vol 127 (4) ◽  
pp. 373-386 ◽  
Author(s):  
Tomoyo Taniguchi

The rocking motion of the tanks is complex and not fully understood. Using model tanks that possess concentric rigid-doughnut-shaped bottom plates, this paper tries to clarify its fundamental mechanics through the analog of rocking motion of rigid bodies. Introducing an effective mass for the internal liquid for rocking motion enables the development of a dynamical system including the rocking-bulging interaction motion and the effective mass of liquid for the interaction motion. Since the base shear and uplift displacement observed during shaking tests match well with computed values, the proposed procedure can explain the mechanics of the rocking motion of the model tanks used herein.


2016 ◽  
Vol 121 (3) ◽  
pp. 1886-1906 ◽  
Author(s):  
J. M. Schmidt ◽  
Iver H. Cairns ◽  
Hong Xie ◽  
O. C. St. Cyr ◽  
N. Gopalswamy

Author(s):  
Tomoyo Taniguchi

Employing a few feasible physical quantities of liquid related to the rocking motion of tanks, this paper tries to understand the fundamental dynamics of the rocking motion of tanks. Introducing the effective mass of liquid for rocking motion and for rocking-bulging interaction motions, the equations of motion are derived by analogue of rocking motion between rigid bodies and tanks. Using the exclusive tanks that possess the rigid-doughnuts-shape bottom plate that guarantees the uplift region of the bottom plate and the extent of the effective mass of liquid for rocking motion, the harmonic shaking tests are carried out. The proposed procedures can stepwise trace the base shear and the uplift displacement of the model tanks used herein.


1973 ◽  
Vol 21 (4) ◽  
pp. 643-651 ◽  
Author(s):  
Albert D. Grauer ◽  
J.W.L. Prakf ◽  
Alvin W. Jenkins

2015 ◽  
Vol 15 (03) ◽  
pp. 1550037 ◽  
Author(s):  
YAGHOUB TADI BENI ◽  
M. KARIMI ZEVERDEJANI

In this study, first, the thin cylindrical shell theory was derived from the modified couple stress theory and, afterwards, the vibration of protein microtubules (MTs) was investigated using the developed model. In order to model protein MTs more precisely, the cylindrical micro-shell model was used. Also, to take account of small size effects, equations of motion were obtained on the basis of the modified couple stress theory. For this purpose, first, using Hamilton's principle, vibration equations of cylindrical shell with boundary conditions were derived from the modified couple stress theory. Finally, the effects of size parameters, MT dimensions, and the medium surrounding on the axial and circumferential vibration frequency of the MT were examined. It should be noted that the results obtained from the cylindrical micro-shell model, unlike those from the beam model, have lower dependency on MT length, but they have extreme dependency on MT thickness and radius. In the end, it is worth noting that the model developed in this study can predict experimental results with greater precision compared to classic models. In other words, this model narrows the gap existing between experimental results and previous models and theories.


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