Free-Wave Propagation Relationships of Second-Order and Fourth-Order Periodic Systems

2011 ◽  
Author(s):  
Andrew J. Hull
Keyword(s):  
Wave Propagation ◽  
Fourth Order ◽  
Second Order ◽  
Periodic Systems ◽  
Free Wave ◽  
Free Wave Propagation

Response of Periodic Systems to a Moving Load

1981 ◽  
Vol 48 (3) ◽  
pp. 613-618 ◽  
Author(s):  
L. Jezequel
Keyword(s):  
Wave Propagation ◽  
Periodic Structures ◽  
Moving Load ◽  
Continuous Model ◽  
Periodic Systems ◽  
Free Wave ◽  
Moving Force ◽  
Definition Of ◽  
Free Wave Propagation ◽  
Support Reactions

The motion of a beam or a plate resting on an elastic foundation and subjected to a moving load has been studied by numerous authors. But the extension of these studies to the case of periodic structures is difficult. In this paper, a method allowing the calculation at low numerical cost of periodically supported beams subjected to a moving force, is proposed. The interpretation of this method on the basis of the free-wave propagation equations in periodic structures has led to the definition of the predominant, so-called “primary,” critical speeds. Individual examples were used to test the method. It was also possible to define the limits of a Winkler continuous model in representing the support reactions.

Free wave propagation in binary gas mixtures

2005 ◽  
Vol 17 (3) ◽  
pp. 297-307 ◽  
Author(s):  
A. S. Fernandes ◽  
W. Marques
Keyword(s):  
Wave Propagation ◽  
Gas Mixtures ◽  
Free Wave ◽  
Free Wave Propagation
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