Results 221 to 230 of about 7,149 (259)
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SPIE Proceedings, 2010
Laser ultrasonics, a nondestructive test method (NDT), is more and more applied in industrial fields such as crack detection in metal and nonmetallic materials, and size measurement and welded joint examination. According to the thermoelastic theory, a finite element model for laser-generated surface waves on the elastic cylinder material is built ...
Yifei Shi, Lu Zhang, Liangxu Cai
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Laser ultrasonics, a nondestructive test method (NDT), is more and more applied in industrial fields such as crack detection in metal and nonmetallic materials, and size measurement and welded joint examination. According to the thermoelastic theory, a finite element model for laser-generated surface waves on the elastic cylinder material is built ...
Yifei Shi, Lu Zhang, Liangxu Cai
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Optik, 2020
Abstract The non-destructive detection of cylindrical pipe defects is still open to research. In this letter, we report a study of the detection method for the surface defect in the cylindrical pipe by using the laser ultrasonic wave. In this study, the propagation characteristics of laser-generated ultrasonic waves in a cylindrical pipe have been ...
Wei Zeng, Yeiyan Yao
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Abstract The non-destructive detection of cylindrical pipe defects is still open to research. In this letter, we report a study of the detection method for the surface defect in the cylindrical pipe by using the laser ultrasonic wave. In this study, the propagation characteristics of laser-generated ultrasonic waves in a cylindrical pipe have been ...
Wei Zeng, Yeiyan Yao
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Mathematical Proceedings of the Cambridge Philosophical Society, 1978
AbstractThis paper is an investigation of the short-wave asymptotic motion due to a cylinder heaving at the surface separating two infinite liquids. The cylinder is assumed to have a smooth cross-section of an arbitrary shape that intersects the surface of separation at right angles.
Gorgui, M. A., Kassem, S. E.
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AbstractThis paper is an investigation of the short-wave asymptotic motion due to a cylinder heaving at the surface separating two infinite liquids. The cylinder is assumed to have a smooth cross-section of an arbitrary shape that intersects the surface of separation at right angles.
Gorgui, M. A., Kassem, S. E.
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Journal of Fluid Mechanics, 1961
The mean position of the cylinder is in the mean free surface, and the cylinder is oscillating vertically (heaving) with a simple harmonic motion of small amplitude. The problem is studied both theoretically and experimentally. The present paper may be regarded as a sequel to an earlier paper (Ursell, Dean & Yu 1959) on the waves due to a piston ...
Y. S. Yu, F. Ursell
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The mean position of the cylinder is in the mean free surface, and the cylinder is oscillating vertically (heaving) with a simple harmonic motion of small amplitude. The problem is studied both theoretically and experimentally. The present paper may be regarded as a sequel to an earlier paper (Ursell, Dean & Yu 1959) on the waves due to a piston ...
Y. S. Yu, F. Ursell
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INTERSECTION ALGORITHM BETWEEN A CYLINDER AND A GENERAL QUADRIC SURFACE
2005In BRep geometric modeling system, the positions of end-points of the resultant intersection curves (called key points as well) are very important for many other operations, such as boolean operations. This paper provides a method to determine the positions of the end-points of the intersection curves between a cylinder and a quadric surface.
Li, Xiao-Wu +3 more
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Journal of the Optical Society of America A, 1997
We present a generalization of a method developed for treating the plane-wave scattering by a perfectly conducting circular cylinder in front of a plane surface to the case of a generic dielectric circular cylinder. Thanks to this formulation, the problem can be treated in a very efficient way for both the near and the far field, and an accurate ...
R. BORGHI +3 more
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We present a generalization of a method developed for treating the plane-wave scattering by a perfectly conducting circular cylinder in front of a plane surface to the case of a generic dielectric circular cylinder. Thanks to this formulation, the problem can be treated in a very efficient way for both the near and the far field, and an accurate ...
R. BORGHI +3 more
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Water surface wave radiation generated by multiple cylinders oscillating with identical frequency
Applied Mathematics and Mechanics, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Propagation of high frequency elastic surface waves along cylinders of general cross section
Journal of Mathematical Physics, 1975The propagation of high frequency elastic surface waves along the generators of a homogeneous isotropic cylinder which has a cross-sectional boundary of nonconstant curvature is investigated. The boundary surface is stress-free and the surface waves, or Rayleigh waves, are disturbances whose amplitudes decay rapidly with depth into the cylinder. In the
Wilson, L. O., Morrison, J. A.
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Fluid Dynamics, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Propagation of high frequency surface waves along cylinders of general cross section
Journal of Mathematical Physics, 1975The propagation of high frequency scalar surface waves along the generators of a homogeneous cylinder which has a cross-sectional boundary of nonconstant curvature is investigated. Asymptotic solutions are obtained to the reduced wave equation, subject to an impedance boundary condition at the surface of the cylinder.
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