Presentation 1995/11/20
An Exact Solution of Torsional Resonators
Hirofumi KAWASHIMA, Kenji SUNAGA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An exact solution of a partial differential equation including elastic compliance constant S'_<56>, with respect to stress function Ψ has been found for torsional modes of vibration of an arbitrary (singly doubly triply) rotated beam with a pair of parallel, free edges. The solution is obtained by relaxing the condition that the edge planes are perpendicular to the main faces of the beam. That is, the edges are off perpendicular by the angle Θ=arctan((-S'_<56>)/(S'_<55>)). The exact solution can reduce the difference of the calculated and measured values for a thickness-to-width ratio where gives the first order temperature coefficient α=0. Also, a comparatively large-inclination of the edge cuts is required tb reduce the unwanted, complicated mode shapes to simple ones.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Torsional Vibration / Piezo-Element / Exact Solution / Quartz / Supersonic Wave / Free Vibration / Frequency Constant / Frequency Temperature Behavior
Paper # US95-65
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Conference Information
Committee US
Conference Date 1995/11/20(1days)
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Paper Information
Registration To Ultrasonics (US)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Exact Solution of Torsional Resonators
Sub Title (in English)
Keyword(1) Torsional Vibration
Keyword(2) Piezo-Element
Keyword(3) Exact Solution
Keyword(4) Quartz
Keyword(5) Supersonic Wave
Keyword(6) Free Vibration
Keyword(7) Frequency Constant
Keyword(8) Frequency Temperature Behavior
1st Author's Name Hirofumi KAWASHIMA
1st Author's Affiliation Seiko Instruments Inc.()
2nd Author's Name Kenji SUNAGA
2nd Author's Affiliation Seiko Instruments Inc.
Date 1995/11/20
Paper # US95-65
Volume (vol) vol.95
Number (no) 376
Page pp.pp.-
#Pages 8
Date of Issue