Research of Acoustic Metamaterials at the University of Szeged …
497
it needs very high qualified competence that takes too much time to improve. So the
software support is still a question.
We lean on the MATLAB and the EXCELL software to verify the correctness
of the analytical predictions and to study the motions with changing the different
parameters.
6 Conclusion
It is obvious that have arrived to the most exciting part of the metamaterial research,
because this is the point where the gathered theoretical knowledge turns to practical
solution. The two and more degree-of-freedom vibrating models, the mass-in-mass
arrangement, the differences between linear and non-linear material parameters have
to be turned to reality and be verified by the measurements in order to move forward
to the shaping, sizing, arranging and proper material finding of the carrier and the
attached masses. And last but not least we will meet the problem of the miniaturizing
and producibility as well. In conclusion, it can be stated we made a long way on
metamaterials but the most is ahead of us.
References
1. L. Cveticanin, Gy Mester, Theory of acoustic metamaterials and metamaterial beams: an
overview. Acta Polytechnica Hungarica 13(7), 43–62 (2016)
2. P.F. Pai, Metamaterial-based broadband elastic wave undamped vibration absorber. J. Intell.
Mater. Syst. Struct. 21(5), 517–528 (2010)
3. H.H. Huang, C.T. Sun, G.I. Huang, On the negative effective mass density in acoustic
metamaterials. Int. J. Eng. Sci. 47, 610–617 (2009)
4. Bíró, I.: Mechanikai lengések, Szegedi Tudományegyetem Mérnöki Kar, Szeged, 2014. 122 p.
ISBN 978-963-306-288-3
5. L. Cveticanin, M. Zukovic, Negative effective mass in acoustic metamaterial with nonlinear
mass-in-mass subsystems. Commun. Nonlinear Sci. Numer. Simul. 51, 89–104 (2017)
6. P.F. Pai, H. Peng, S. Jiang, Acoustic metamaterial beams based on multi-frequency vibration
absorbers. Int. J. Eng. Sci. 79, 195–205 (2014)
7. A. Heged˝ us, Fejezetek a kinetikából Rezgéstan (Szent István Egyetemi Kiadó, Gödöll˝ o, 2015).
ISBN 978-963-269-468-9
8. P. Szuchy, I. Bíró, Damped 2-DOF subsystems of acoustic metamaterials, KOD 2018 IOP Conf.
Ser. Mater. Sci. Eng. 393, 012038 (2018). https://doi.org/10.1088/1757-899x/393/1/012038
9. A.F. Vakakis, A. Blanchard, Exact steady states of the periodically forced and damped duffing
oscillator. J. Sound Vib. 413, 57–65 (2018)
10. L. Cveticanin, Strong nonlinear oscillators. Springer International Publishing AG (2018). ISBN
978-3-319-58825-4
11. L. Cveticanin, M. Zukovic, Gy. Mester, I. Biro, J. Sarosi, Oscillators with symmetric and
asymmetric quadratic nonlinearity. Acta Mechanica 227(6), 1727–1742 (2016). IF (2015):
1,694
497
it needs very high qualified competence that takes too much time to improve. So the
software support is still a question.
We lean on the MATLAB and the EXCELL software to verify the correctness
of the analytical predictions and to study the motions with changing the different
parameters.
6 Conclusion
It is obvious that have arrived to the most exciting part of the metamaterial research,
because this is the point where the gathered theoretical knowledge turns to practical
solution. The two and more degree-of-freedom vibrating models, the mass-in-mass
arrangement, the differences between linear and non-linear material parameters have
to be turned to reality and be verified by the measurements in order to move forward
to the shaping, sizing, arranging and proper material finding of the carrier and the
attached masses. And last but not least we will meet the problem of the miniaturizing
and producibility as well. In conclusion, it can be stated we made a long way on
metamaterials but the most is ahead of us.
References
1. L. Cveticanin, Gy Mester, Theory of acoustic metamaterials and metamaterial beams: an
overview. Acta Polytechnica Hungarica 13(7), 43–62 (2016)
2. P.F. Pai, Metamaterial-based broadband elastic wave undamped vibration absorber. J. Intell.
Mater. Syst. Struct. 21(5), 517–528 (2010)
3. H.H. Huang, C.T. Sun, G.I. Huang, On the negative effective mass density in acoustic
metamaterials. Int. J. Eng. Sci. 47, 610–617 (2009)
4. Bíró, I.: Mechanikai lengések, Szegedi Tudományegyetem Mérnöki Kar, Szeged, 2014. 122 p.
ISBN 978-963-306-288-3
5. L. Cveticanin, M. Zukovic, Negative effective mass in acoustic metamaterial with nonlinear
mass-in-mass subsystems. Commun. Nonlinear Sci. Numer. Simul. 51, 89–104 (2017)
6. P.F. Pai, H. Peng, S. Jiang, Acoustic metamaterial beams based on multi-frequency vibration
absorbers. Int. J. Eng. Sci. 79, 195–205 (2014)
7. A. Heged˝ us, Fejezetek a kinetikából Rezgéstan (Szent István Egyetemi Kiadó, Gödöll˝ o, 2015).
ISBN 978-963-269-468-9
8. P. Szuchy, I. Bíró, Damped 2-DOF subsystems of acoustic metamaterials, KOD 2018 IOP Conf.
Ser. Mater. Sci. Eng. 393, 012038 (2018). https://doi.org/10.1088/1757-899x/393/1/012038
9. A.F. Vakakis, A. Blanchard, Exact steady states of the periodically forced and damped duffing
oscillator. J. Sound Vib. 413, 57–65 (2018)
10. L. Cveticanin, Strong nonlinear oscillators. Springer International Publishing AG (2018). ISBN
978-3-319-58825-4
11. L. Cveticanin, M. Zukovic, Gy. Mester, I. Biro, J. Sarosi, Oscillators with symmetric and
asymmetric quadratic nonlinearity. Acta Mechanica 227(6), 1727–1742 (2016). IF (2015):
1,694