Flexural vibrations of plates by the moire method

Theocaris, PS

dc.contributor.author	Theocaris, PS	en
dc.date.accessioned	2014-03-01T01:37:40Z
dc.date.available	2014-03-01T01:37:40Z
dc.date.issued	1967	en
dc.identifier.issn	05083443	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21613
dc.title	Flexural vibrations of plates by the moire method	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0508-3443/18/4/314	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0508-3443/18/4/314	en
heal.identifier.secondary	314	en
heal.publicationDate	1967	en
heal.abstract	The reflected image moiré method was used to yield the vibration modes of plates. Interference of the reflection of a reference grating from the specularly polished surface of a vibrating plate with a second similar grating created a moiré pattern consisting of straight equidistant lines corresponding to the nodal regions of the plate. The moiré pattern produced when the plate was illuminated by a continuous parallel light beam yielded the nodal configuration of the vibrating plate. When the vibrating plate was illuminated by a stroboscopic light source the moiré pattern showed the contour map of partial slopes of the plate at the instant of illumination. While the first technique, with continuous illumination, yielded the exact form and location of the nodes and antinodes of a vibrating plate at its natural frequencies, the second technique, with intermittent light, gave the local amplitude and phase distribution of the plate.	en
heal.journalName	British Journal of Applied Physics	en
dc.identifier.doi	10.1088/0508-3443/18/4/314	en
dc.identifier.volume	18	en
dc.identifier.issue	4	en
dc.identifier.spage	513	en
dc.identifier.epage	547-4	en