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Research on Exciting Forces for a Pair of Coaxial Hollow Cylinder and Bottom-Mounted Cylinder(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2013年01期
Page:
22-28
Research Field:
数学
Publishing date:

Info

Title:
Research on Exciting Forces for a Pair of Coaxial Hollow Cylinder and Bottom-Mounted Cylinder
Author(s):
Ma Shuxie
Department of Mathematics and Information Engineering,Puyang Vocational and Technical College,Puyang 457000,China
Keywords:
diffraction; finite depth; virtual boundary; exciting forces; energy device
PACS:
O193
DOI:
-
Abstract:
We consider two coaxial vertical cylinders,one of which is a solid base,the other is a hollow cylinder as caisson approximation,and the two cylinders shown by the diffraction phenomenon can be seen as a wave energy device.These energy generated after conversion can be a wide range of practical applications in clearly identified regions.We use the method of separation of variables to obtain the analytical expressions for the diffracted potentials in clearly identified regions.Using the appropriate matching conditions,we derive the linear system with unknown parameters.A set of exciting forces are obtained for different radii of the cylinders and for different gaps between the cylinders.It is clear that the exciting force changes as the radius and the gap changes.We describe and compare the result with the chart.Only in the low frequency,exciting force is obvious.

References:

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Last Update: 2013-03-31