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Using Hydrostatic Pressure to Maximize Frequency Dependent Damping Properties of Thermoplastic Polyurethane

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Challenges in Mechanics of Time Dependent Materials, Volume 2
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Abstract

One of the ways to reduce vibration transmission between source and receiver is by using polymeric damping elements. Comparing polymeric materials shows that polymeric materials with high damping factor tan δ exhibits lower stiffness compared to polymeric materials with lower damping factor. Due to their insufficient stiffness polymers with better damping are often not being used for vibration isolation. In addition, elastomeric materials with higher damping exhibit maximal damping values at high frequencies, often in frequency range far away from our hearing range. Combining both facts leads to the conclusion that there is still room to increase damping properties of polymeric material.

This paper is a continuation of previously presented work on this topic with aim to demonstrate how exposing elastomeric material to the hydrostatic pressure we can affect its frequency dependent mechanical properties. This allows full utilization of damping potential of the selected material and maximize the damping effect of the damping element. Using this unique property of viscoelastic materials enables one to designed adaptive damping elements which can be used in railroad applications as well as in other relevant cases. To demonstrate the effect of inherent hydrostatic pressure on damping behavior three thermoplastic polyurethanes were selected.

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References

  1. Road Freight Transport Vademecum 2010 Report, European Commission. http://ec.europa.eu/transport/modes/road/doc/2010-road-freight-vademecum.pdf (2011). Accessed 03 Sep 2015

  2. Becker, H., Iuell, B.: Habitat fragmentation due to infrastructure: A European review on habitat fragmentation, wildlife and traffic.–a handbook for identifying conflicts and designing solutions. In: CL Irwin, P. Garrett. and KP McDermott (eds), Proceedings of the International Conference on Ecology and Transportation, North Carolina State University, USA (2003), pp. 1–14

    Google Scholar 

  3. Thompson, D.: Railway noise and vibration: mechanisms, modelling and means of control. Elsevier, Oxford (2008)

    Google Scholar 

  4. Goodman, L.E.: Material damping and slip damping. In: Shock and vibration handbook, vol. 36, pp. 1–28. McGraw-Hill, New York (1976)

    Google Scholar 

  5. Rao, M.D.: Recent applications of viscoelastic damping for noise control in automobiles and commercial airplanes. J. Sound Vib. 262(3), 457–474 (2003)

    Article  Google Scholar 

  6. Jones, D.I.G.: Handbook of viscoelastic vibration damping. Wiley, New York (2001)

    Google Scholar 

  7. Chung, D.D.L.: Review: materials for vibration damping. J. Mater. Sci. 36(24), 5733–5737 (2001)

    Article  Google Scholar 

  8. Tschoegl, N.W.: The phenomenological theory of linear viscoelastic behavior: an introduction. Springer, Berlin (2012)

    MATH  Google Scholar 

  9. Tschoegl, N., Knauss, W., Emri, I.: The effect of temperature and pressure on the mechanical properties of thermo-and/or piezorheologically simple polymeric materials in thermodynamic equilibrium—A critical review. Mech. Time-Depend. Mater. 6(1), 53–99 (2002)

    Article  Google Scholar 

  10. Knauss, W.G., Emri, I., Lu, H.: Mechanics of polymers: viscoelasticity. Springer, Berlin (2008)

    Google Scholar 

  11. Emri, I., von Bernstorff, B.S., Cvelbar, R., Nikonov, A.: Re-examination of the approximate methods for interconversion between frequency-and time-dependent material functions. J. Non-Newtonian Fluid Mech. 129(2), 75–84 (2005)

    Article  MATH  Google Scholar 

  12. Kralj, A., Prodan, T., Emri, I.: An apparatus for measuring the effect of pressure on the time-dependent properties of polymers. J. Rheol. 45(4), 929–943 (2001)

    Article  Google Scholar 

  13. Emri, I., Prodan, T.: A measuring system for bulk and shear characterization of polymers. Exp. Mech. 46(4), 429–439 (2006)

    Article  Google Scholar 

  14. Knauss, W.G., Emri, I., Lu, H.: Mechanics of polymers: viscoelasticity. In: Sharpe, W.N. (ed.) Handbook of experimental solid mechanics, pp. 49–95. Springer, Berlin (2008)

    Chapter  Google Scholar 

  15. Gergesova, M., Zupančič, B., Saprunov, I., Emri, I.: The closed form t-T-P shifting (CFS) algorithm. J. Rheol. 55(1), 1–16 (2011)

    Article  Google Scholar 

Download references

Acknowledgment

Authors acknowledge the financial support of the Slovenian Research Founding Agency (P2-0264 and L2-6761), and the European Union Social Fund (P-MR-10/148). As well as the in kind support from BASF SE, Germany.

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Correspondence to M. Bek .

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Bek, M., Emri, I. (2017). Using Hydrostatic Pressure to Maximize Frequency Dependent Damping Properties of Thermoplastic Polyurethane. In: Antoun, B., et al. Challenges in Mechanics of Time Dependent Materials, Volume 2. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-41543-7_15

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  • DOI: https://doi.org/10.1007/978-3-319-41543-7_15

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-41542-0

  • Online ISBN: 978-3-319-41543-7

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