Acta Univ. Agric. Silvic. Mendelianae Brun. 2013, 61(6), 1873-1880 | DOI: 10.11118/actaun201361061873

Vibration properties of the Ostrich eggshell at impact

Jan Trnka1, Pavla Stoklasová1, Jana Strnková2, ©árka Nedomová2, Jaroslav Buchar3
1 Institute of Thermomechanics, Czech Academy of Science, Dolejąkova 5, 182 00, Praha, Czech Republic
2 Department of Food Technology, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
3 Department of Technology and Automobile Transport, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

An experimental system has been used to generate the impact force, measure the response wave signal, and analyse the frequency spectrum for physical property of Ostrich eggshell. The effects of excitation point, detected point and impact intensity on the eggshell response to a light mechanical impact were analysed. The aim of this study consists in the evaluation of the main vibration properties which can be used for the detection of cracks in the eggshell. Four variables were investigated to determine if they are significant for classifying eggs by setting up relationship x- and y-coordinates, including the first dominant resonance frequency, the normalization average of the frequency domain, the average of the frequency domain, and the average x- and y-coordinates of the centroid for the frequency domain. The egg dynamic resonance frequency was obtained through the analysis of the dynamically measured frequency response of an egg excited by pendulum.

Keywords: eggshell, impact, surface displacement, frequency analysis, damage
Grants and funding:

The authors would like to acknowledge the support of the Institute of Thermomechanics AS CR, v. v. i of the Czech Academy of Sciences through institutional support No. RVO: 61388998 and project IP 2/2013 IGA MENDELU.

Received: July 9, 2013; Published: November 24, 2013  Show citation

ACS AIP APA ASA Harvard Chicago IEEE ISO690 MLA NLM Turabian Vancouver
Trnka, J., Stoklasová, P., Strnková, J., Nedomová, ©., & Buchar, J. (2013). Vibration properties of the Ostrich eggshell at impact. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 61(6), 1873-1880. doi: 10.11118/actaun201361061873
Share...
Download citation
  • BibTeX (.bib)
  • Bookends (.ris)
  • EasyBib (.ris)
  • EndNote (.enw)
  • EndNote 8 (.xml)
  • ISI WoS (.isi)
  • Medlars (.medlars)
  • Mendeley (.ris)
  • MODS (.xml)
  • Papers (.ris)
  • RefWorks (.txt)
  • RefManager (.ris)
  • RIS (.ris)
  • MS Word (.xml)
  • Zotero (.ris)
    • Open full article

    References

    1. ALTUNTAS, E., SEKEROGLU, A., 2008: Effect of egg shape index on mechanical properties of chicken eggs. Journal of Food Engineering, 85, 606-612. ISSN 0260-8774. DOI: 10.1016/j.jfoodeng.2007.08.022 Go to original source...
    2. ARMSTRONG, P., ZAPP, H. R., BROWN, G. K., 1990: Impulsive excitation of acoustic vibrations in apples for firmness determination. T ASABE, 33, 4: 1353-1359. ISSN 2151-0032. DOI: 10.13031/2013.31480 Go to original source...
    3. DE KETELAERE, B., GOVAERTS, T., COUKE, P., DEWIL, E., VISSEHER, T., DECUYPERE, L., 2002: Measuring the eggshell strength of 6 different strains of laying hens: Techniques and comparison. British Poultry Science, 43: 238-244. ISSN 0007-1668. DOI: 10.1080/00071660120121454 Go to original source...
    4. DUPRAT, F., GROTTE, M., PIETRI, E., LOONIS, D., STUDMAN, C. J., 1997: The acoustic impulse response method for measuring the overall firmness of fruit. J Agr Eng Res, 66, 4: 251-259. ISSN 0021-8634. DOI: 10.1006/jaer.1996.0143 Go to original source...
    5. HAYASHI, S., SUGIYAMA, J., OTOBE, K., 1995: Nondestructive quality evaluation of fruits and vegetables by acoustic transmission waves. Proceedings of International Symposium on Automation and Robotics in Bioproduction and Processing. November 3-6, 1995, Japan, Kobe: Kobe University: 227-234. ISBN N.
    6. CHEN, P., SUN, Z., HUARNG, L., 1992: Factors affecting acoustic responses of apples. T ASABE, 35, 6: 1915-1920. ISSN 2151-0032. DOI: 10.13031/2013.28815 Go to original source...
    7. NEDOMOVÁ, ©., TRNKA, J., DVOŘÁKOVÁ, P., BUCHAR, J., SEVERA, L., 2009: Hen's eggshell strength under impact loading. J Food Eng, 94, 3-4: 350-357. ISSN 0260-8774. DOI: 10.1016/j.jfoodeng.2009.03.028 Go to original source...
    8. NEDOMOVÁ, ©., BUCHAR, J., 2013: Ostrich eggs geometry. Acta univ. agric. et silvic. Mend. Brunen., 61, 3: 735-742. ISSN 1211-8516. DOI: 10.11118/actaun201361030735 Go to original source...
    9. STONE, M. L., ARMSTRONG, P. R., ZHANG, X., BRUSEWITZ, G. H., CHEN, D. D., 1996: Watermelon maturity determination in the field using acoustic impulse impedance techniques. T ASAE, 39, 6: 2325-2330. ISSN 0001-2351. DOI: 10.13031/2013.27743 Go to original source...
    10. SUGIYAMA, J., OTOBE, K., HAYASHI, S., USUI, S., 1994: Firmness measurement of muskmelons by acoustic impulse transmission. T ASABE, 37, 4: 1234-1241. ISSN 2151-0032. Go to original source...
    11. TIMOSHENKO, S. P., GOODIER, J. N., 1951: Theory of Elasticity. New York: McGraw-Hill Book Company, 409-413.
    12. WANG, J., JIANG, R. S., YU, Y., 2004: Relationship between dynamic resonance frequency and egg physical properties. Food Res Int, 37, 1: 45-50. ISSN 0963-9969. DOI: 10.1016/j.foodres.2003.09.004 Go to original source...
    13. WANG J., JIANG, R. S., 2005: Eggshell crack detection by dynamic frequency analysis. Eur Food Res Technol, 221, 1-2: 214-220. ISSN 1438-2377. DOI: 10.1007/s00217-005-1149-9 Go to original source...

    This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY NC ND 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.


    Return to the content