Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 3
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

This paper presents theory of new shear horizontal (SH) acoustic surface waves that propagate along the interface of two semi-infinite elastic half-spaces, one of which is a conventional elastic medium and a second one an elastic metamaterial with a negative and frequency dependent shear elastic compliance.
This new surface waves have only one transverse component of mechanical displacement, which has a maximum at the interface and decays exponentially with distance from the interface. Similar features are also shown by the acoustic shear horizontal Maerfeld-Tournois surface waves propagating at the interface of two semi-infinite elastic media due to the piezoelectric effect that should occur in at least one semi-space.
The proposed new shear horizontal acoustic surface waves exhibit also strong formal similarities with the electromagnetic surface waves of the surface plasmon polariton (SPP) type, propagating along a metal-dielectric planar interface. In fact, the new shear horizontal elastic surface waves possess a large number of properties that are inherent for the SPP electromagnetic surface waves, such as strong subwavelength concentration of the wave field in the proximity of the guiding interface, low phase and group velocity etc. As a result, the new shear horizontal acoustic surface waves can find applications in sensors with extremely high sensitivity, employed in measurements of various physical parameters, such as viscosity of liquids, as well as in biosensors, chemosensors, or a near field acoustic microscopy (subwavelength imaging) and miniaturized devices of microwave acoustics.
Go to article

Bibliography

Achenbach J.D. (1973), Wave Propagation in Elastic Solids, North-Holland, Amsterdam.

Ambati M., Fang N., Sun C., Zhang X. (2007), Surface resonant states and superlensing in acoustic metamaterials, Physical Review B, 75(19): 195447, https://doi.org/10.1103/PhysRevB.75.195447.

Auld B.A. (1990), Acoustic Fields and Waves in Solids. Volume I, II, Krieger Publishing Company, Florida.

Bleustein J.L. (1968), A new surface wave in piezoelectric materials, Applied Physics Letters, 13: 412-413, 10.1063/1.1652495. https://doi.org/10.1063/1.1652495.

Born M., Wolf E. (1980), Principles of Optic, 6th ed., p. 625, Cambridge University Press, Cambridge.

Deng K., He Z., Ding Y., Zhao H., Liu Z. (2014), Surface-plasmon-polariton (SPP)-like acoustic surface waves on elastic metamaterials, arXiv, arXiv:1408.2186v1, 10.48550/arXiv.1408.2186, https://doi.org/10.48550/arXiv.1408.2186.

Kadic M., Bückmann T., Schittny R., Wegener M. (2013), Metamaterials beyond electromagnetism, Reports on Progress in Physics, 76(12): 126501, https://doi.org/10.1088/0034-4885/76/12/126501.

Kiełczyński P., Szalewski M., Balcerzak A., Wieja K. (2015), Group and Phase Velocity of Love Waves Propagating in Elastic Functionally Graded Materials, Archives of Acoustics, 40(2): 273–281, https://doi.org/10.1515/aoa-2015-0030.

Kiełczyński P. (2018), Direct Sturm–Liouville problem for surface Love waves propagating in layered viscoelastic waveguides, Applied Mathematical Modelling, 53: 419–432, 10.1016/j.apm.2017.09.013. https://doi.org/10.1016/j.apm.2017.09.013.

Kiełczyński P. (2021), New Fascinating Properties and Potential Applications of Love Surface Waves, Invited Speaker presentation at the IEEE, International Ultrasonic Symposium, September 11–16, 2021, Xi’an, China, http://zbae.ippt.pan.pl/strony/publikacje.htm.

Love A.E.H. (1911), Some Problems of Geodynamics, Cambridge University Press, London.

Maerfeld C., Tournois P. (1971), Pure shear elastic surface wave guided by the interface of two semi‐infinite media, Applied Physics Letters, 19(4): 117, 10.1063/1.1653836. https://doi.org/10.1063/1.1653836.

Maier S.A. (2007), Plasmonics: Fundamentals and Applications, Springer, Berlin.

Nkoma J., Loudon R., Tilley D.R. (1974), Elementary properties of surface polaritons, Journal of Physics C: Solid State Physics, 7(19): 3547–3559.

Rosenblatt G., Feigenbaum E., Orenstein M. (2010), Circular motion of electromagnetic power shaping the dispersion of surface plasmon polaritons, Optics Express, 18(25): 25861–25872, 10.1364/OE.18.025861. https://doi.org/10.1364/OE.18.025861.

Royer D., Dieulesaint E. (2000), Elastic Waves in Solids I, Springer, Berlin Heidelberg New York.

Wu Y., Lai Y., Zhang Z.-Q. (2011), Elastic metamaterials with simultaneously negative effective shear modulus and mass density, Physical Review Letters, 107(10): 105506, 10.1103/PhysRevLett.107.105506. https://doi.org/10.1103/PhysRevLett.107.105506.

Yu S.-Y., Wang J.-Q., Sun X.-C., Liu F.-K., He C., Xu H.-H., Lu M.-H., Christensen J., Liu X.-P., Chen Y.-F. (2020), slow surface acoustic waves via lattice optimization of a phononic crystal on a chip, Physical Review Applied, 14(6): 064008, 10.1103/PhysRevApplied.14.064008. https://doi.org/10.1103/PhysRevApplied.14.064008.

Zaccherini R., Colombi A., Palermo A., Dertimanis V.K., Marzani A., Thomsen H.R., Stojadinovic B., Chatzi E.N. (2020), Locally resonant metasurfaces for shear waves in granular media, Physical Review Applied, 13(3): 034055, 10.1103/PhysRevApplied.13.034055, https://doi.org/10.1103/PhysRevApplied.13.034055.

Zhang J., Zhang L., Xu W. (2020), Surface plasmon polaritons: physics and applications, Journal of Physics D: Applied Physics, 45(11): 113001.


Go to article

Authors and Affiliations

Piotr Kiełczyński
1

  1. Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
Download PDF Download RIS Download Bibtex

Abstract

The volume of combustion chamber consists of head and cylinder spaces. The distribution of volumes in the cylinder depends on accuracy of dimensions, determined by the production process, and precision of the crankshaft system assembling. Therefore, the aim of this work is to present a correct method of assembling, and give an example of analysis of crankshaft system dimensions based on the engine family type Wola-135TC.
Go to article

Authors and Affiliations

Józef Jezierski
Marek Kowalik
Zbigniew Siemiątkowski
Download PDF Download RIS Download Bibtex

Abstract

There is no agreement on the etymology and meaning of Phoen. ḥsp in the Aḥirom sarcophagus inscription, but the corresponding Egyptian verb ḥsb, “to break”, may help to resolve both issues. In support, several other words where Eg. /b/ corresponds to Semitic /p/ are discussed.

Go to article

Authors and Affiliations

Wilfred G.E. Watson

This page uses 'cookies'. Learn more