On the dispersion of wedge acoustic waves

被引：13

作者：

Sokolova, Elena S. ^{[1
,2
]}

Kovalev, Alexander S. ^{[2
]}

Timler, Reinhold ^{[1
]}

Mayer, Andreas P. ^{[1
]}

机构：

[1] HS Offenburg, D-77723 Gengenbach, Germany

[2] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine

来源：

WAVE MOTION | 2013年 / 50卷 / 02期

关键词：

Acoustic waves; Guided waves; Wedge waves; Dispersion; VIBRATIONAL EDGE MODES; FINITE-ELEMENT SIMULATIONS; PROPAGATION; BEHAVIORS; GUIDES; TIPS;

D O I：

10.1016/j.wavemoti.2012.08.015

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Acoustic waves guided at the apex of an ideal infinite elastic wedge are non-dispersive. Weak dispersion arises due to a variety of factors. Three of them are investigated in detail: (i) Coating of one or both of the two surfaces of the infinite wedge, (ii) truncating the wedge at its apex or replacing the tip of the wedge by a different material, (iii) slight modification of the material constants of the wedge material in an extended spatial region of the wedge near its tip. These three cases have been analysed within the perturbation theory, and the third case, in addition, with the help of semi-analytic finite element calculations. The dependence of the frequency on wavelength is derived for all three cases, and quantitative results are presented for the dispersion laws of example systems. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：233 / 245

页数：13

共 46 条

[1] A COUPLED MODE APPROACH TO MODULATION INSTABILITY AND ENVELOPE SOLITONS [J].

ANDERSEN, DR ;

DATTA, S ;

GUNSHOR, RL .

JOURNAL OF APPLIED PHYSICS, 1983, 54 (10) :5608-5612

[2]

[Anonymous], P 2010 IEEE ULTR S

[3]

[Anonymous], P 1993 IEEE ULTR S

[4]

[Anonymous], P 2009 IEEE ULTR S

[5]

[Anonymous], P 30 S ULTR EL KYOT

[6]

[Anonymous], P 2010 IEEE ULTR S

[7] STUDY OF SURFACE ACOUSTIC-WAVES GUIDED BY A METALLIC CYLINDRICAL WEDGE USING LASER-ULTRASONIC TECHNIQUES [J].

AURIBAULT, D ;

JIA, X ;

DEBILLY, M ;

QUENTIN, G .

JOURNAL DE PHYSIQUE IV, 1994, 4 (C5) :737-740

[8]

Biryukov SV, 1995, SURFACE ACOUSTIC WAV

[9]

Chamuel JR, 1997, REV PROG Q, V16, P129

[10] ANALYSIS OF LINE ACOUSTICAL WAVES IN GENERAL PIEZOELECTRIC CRYSTALS [J].

DATTA, S ;

HUNSINGER, BJ .

PHYSICAL REVIEW B, 1977, 16 (10) :4224-4229

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