An experimental investigation of an airfoil undergoing large amplitude pitching motions

1985 ◽  
Author(s):  
J. WALKER ◽  
H. HELIN ◽  
J. STRICKLAND
Keyword(s):  
Experimental Investigation ◽  
Large Amplitude

scholarly journals Experimental investigation on large amplitude standing wave induced in closed tubes with varying cross section

2004 ◽  
Vol 25 (2) ◽  
pp. 153-158
Author(s):  
Md. Anwar Hossain ◽  
Masaaki Kawahashi ◽  
Tomoyoshi Nagakita ◽  
Hiroyuki Hirahara
Keyword(s):  
Experimental Investigation ◽  
Standing Wave ◽  
Cross Section ◽  
Large Amplitude ◽  
Wave Induced

scholarly journals An Experimental Investigation of Low Power, Long Duration Rotamak Discharges

1987 ◽  
Vol 40 (2) ◽  
pp. 157 ◽  
Author(s):  
IR Jones ◽  
MDE Turley ◽  
JE Wedding ◽  
G Durance ◽  
GR Hogg ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Low Power ◽  
Large Amplitude ◽  
Toroidal Field ◽  
Forced Oscillations ◽  
Hydrogen Plasmas ◽  
Compact Torus ◽  
Long Duration

A rotamak device is described in which compact torus plasmas are generated using relatively low RF input powers (~ a few kW). Compact torus configurations are generated in both argon and hydrogen plasmas and are sustained for ~ 9 ms. These configurations appear to be grossly stable and show no tendency to disrupt even when subjected to large amplitude forced oscillations. A configuration incorporating a toroidal field is also investigated.

Experimental Investigation of Isolated and Simultaneous Internal Resonances in Suspended Cables

1995 ◽  
Vol 117 (4) ◽  
pp. 385-391 ◽  
Author(s):  
C. L. Lee ◽  
N. C. Perkins
Keyword(s):  
Experimental Investigation ◽  
Large Amplitude ◽  
Resonant Response ◽  
Modal Interactions ◽  
Internal Resonances ◽  
Theoretical Predictions ◽  
Suspended Cables ◽  
Elastic Cables

The near resonant response of suspended elastic cables driven by harmonic, planar excitation is investigated experimentally. Measurements of large amplitude cable motions confirm previous theoretical predictions of fundamental classes of internally-resonant responses. For particular magnitudes of equilibrium curvature, strong modal interactions arise through isolated (two-mode) or simultaneous (three-mode) internal resonances. Four qualitatively different periodic responses are observed: (1) pure planar response, (2) 2:1 internally resonant nonplanar response, (3) 1:1 internally resonant nonplanar response, and (4) simultaneous, 2:2:1 internally resonant nonplanar response. Quasiperiodic responses are also observed.

Experimental investigation of the large amplitude vibrations of a thin-walled column under self-weight

2013 ◽  
Vol 46 (6) ◽  
pp. 869-886 ◽  
Author(s):  
Paulo B. Goncalves ◽  
Daniel Leonardo B.R. Jurjo ◽  
Carlos Magluta ◽  
Ney Roitman
Keyword(s):  
Experimental Investigation ◽  
Large Amplitude ◽  
Thin Walled ◽  
Large Amplitude Vibrations

Experimental Investigation of the Shipping of Water on the Bow of a Containership

2005 ◽  
Vol 127 (4) ◽  
pp. 322-330 ◽  
Author(s):  
Nuno Fonseca ◽  
C. Guedes Soares
Keyword(s):  
Experimental Investigation ◽  
Large Amplitude ◽  
Model Tests ◽  
Impact Pressure ◽  
Irregular Waves ◽  
Total Force ◽  
First Line ◽  
The Absolute ◽  
The Impact ◽  
Relative Motions

The paper presents the results of an experimental investigation of the shipping of water on the bow of a containership. Model tests were carried out in head regular and irregular waves of large amplitude, and measurements were taken of: the absolute and relative motions, the structural loads, the height of water and the impact pressure on the deck, and the horizontal impact pressure and total force on the first line of containers on the bow.

Experimental Investigation of the Shipping of Water on the Bow of a Containership

2003 ◽  
Author(s):  
Nuno Fonseca ◽  
Carlos Guedes Soares
Keyword(s):  
Experimental Investigation ◽  
Large Amplitude ◽  
Model Tests ◽  
Impact Pressure ◽  
Irregular Waves ◽  
Total Force ◽  
First Line ◽  
The Absolute ◽  
The Impact ◽  
Relative Motions

The paper presents the results of an experimental investigation of the shipping of water on the bow of a containership. Model tests were carried out in head regular and irregular waves of large amplitude, and measurements were taken of: the absolute and relative motions, the structural loads, the height of water and the impact pressure on the deck, and the horizontal impact pressure and total force on the first line of containers on the bow.

Experimental Investigation of Isolated and Simultaneous Internal Resonances in Suspended Cables

1993 ◽  
Author(s):  
Christopher L. Lee ◽  
Noel C. Perkins
Keyword(s):  
Experimental Investigation ◽  
Large Amplitude ◽  
Resonant Response ◽  
Modal Interactions ◽  
Internal Resonances ◽  
Theoretical Predictions ◽  
Suspended Cables ◽  
Elastic Cables

Abstract The near resonant response of suspended elastic cables driven by harmonic, planar excitation is investigated experimentally. Measurements of large amplitude cable motions confirm previous theoretical predictions of fundamental classes of internally-resonant responses. For particular magnitudes of equilibrium curvature, strong modal interactions arise through isolated (two-mode) or simultaneous (three-mode) internal resonances. Four qualitatively different periodic responses are observed: 1) pure planar response, 2) 2:1 internally resonant non-planar response 3) 1:1 internally resonant non-planar response, and 4) simultaneous, 2:2:1 internally resonant non-planar response. Quasi-periodic responses are also observed.

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