An experimental investigation of one- and two-degree of freedom VIV of cylinders

2013 ◽  
Vol 29 (2) ◽  
pp. 284-293 ◽  
Author(s):  
Zhuang Kang ◽  
Lu-Sheng Jia
Mechanika ◽  
2011 ◽  
Vol 17 (2) ◽  
Author(s):  
R. Bansevičius ◽  
S. Telksnytė ◽  
G. Janušas ◽  
A. Palevičius

1967 ◽  
Vol 9 (5) ◽  
pp. 402-413 ◽  
Author(s):  
R. W. Traill-Nash ◽  
G. Long ◽  
C. M. Bailey

Existing techniques of resonance testing have shown a marked inability to find the principal modes, natural frequencies and levels of damping in a structure which possesses two or more close natural frequencies (1)§. This paper describes an experimental investigation on a two-degree-of-freedom model of a technique which makes use of dynamical influence coefficients (or receptances) measured at a number of stations on the structure (2) (3) (4) (5). The measured coefficients are used to calculate natural frequencies and modes of vibration, and the mass, damping and stiffness properties of the system. Several model configurations having different natural frequency separations were tested and no special difficulty resulted when natural frequencies were close or even coincident.


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