Numerical simulations of a bird strike against a helicopter windshield

• Autorzy: Ćwiklak J.

Identyfikatory

DOI

10.5604/01.3001.0012.2780

• Języki publikacji: EN

Abstrakty

EN

The article presents simulation results of a bird strike with a helicopter windshield of small helicopter category. It turns out that there are no certification requirements regarding windshield of this category. Therefore Agusta A109 helicopter as a representing this helicopter category has been chosen for researcher. The simulations were conducted on the basis of LS-DYNA software by means of the SPH method for bird model shape of cylinder with hemispherical endings for the speed of Vc = 285 km/h. The analyses regarded various angles of the bird model impact into windshield. As a result of the simulations, comparative analyses in the aspect of time curves of the kinetic energy, velocity, and windshield deformation were achieved. The analysis shows that at smaller angles of attack, the bird’s model has a higher speed at the moment of impact, and thus greater kinetic energy, because it did not lose speed as a result of the collision. In addition, the deflection of the windshield is smaller. In some cases, the deflection of the windshield may be observed, which indicates the elastic response of the system. In case of impact in the normal direction to the surface of the glass, the bird’s model practically pierces it. The use of a thicker pane translates into less deformation of the pane, but causes its destruction at the connection point with the helicopter carrier structure.

Słowa kluczowe

EN

bird strikes; helicopter windshield; numerical analysis; LS-DYNA

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2018
• Tom: Vol. 25, No. 2
• Strony: 81--88
• Opis fizyczny: Bibliogr. 14 poz., rys.

Twórcy

autor

Ćwiklak J.

• Polish Air Force Academy Aeronautics Faculty Dywizjonu 303 Street 35, 08-521 Deblin, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Adamski, M., Cwojdziński, L., Power units and power supply systems in UAV, AVIATION, Wilno-Litwa, T. 18, Wyd. 1, pp. 1-8, 2014.
• [2] Ćwiklak, J., Studium zderzeń statków powietrznych z ptakami − analizy numeryczne, Biblioteka Problemów Eksploatacji, Wydawnictwo Naukowe Instytutu Technologii Eksploatacji, Radom 2016.
• [3] Dennis, L., Lyle, D., Bird strike damage & windshield bird strike, Final Report, EASA 2009.
• [4] Heimbs, S., Computational methods for bird strike simulations: A review, Computers and Structures, Vol. 89, pp. 2093-2112, 2011.
• [5] Lavoie, M.-A., Gakwaya, A., Nejad Ensan, M., Zimcik D. G., Review of existing numerical methods and validation procedure available for bird strike modelling, ICCES, Vol. 2, No. 4, pp. 111-118, 2007.
• [6] LS-DYNA® Keyword User’s Manual, Vol. I, Livermore Software Technology Corporation, USA 2007.
• [7] Marulo, F., Guida, M., Design criteria for birdstrike damage on windshield, Advances in Aircraft and Spacecraft Science, Vol. 1, No. 2, pp. 233-251, 2014.
• [8] McCallum, S. C., Constantinou C., The influence of bird-shape in bird-strike analysis, 5th European LS-DYNA Users Conference, Paper No. 2c-77, Birmingham, United Kingdom 2005.
• [9] Manual on the ICAO Bird Strike information System (IBIS) Doc. 9332.
• [10] Nizampatnam, L. S., Models and methods for bird strike load predictions, PhD thesis, Wichita State University, 2007.
• [11] Wang, F. S., Yue, Z. F., Yan, W. Z., Factors study influencing on numerical simulation of aircraft windshield against bird strike, Shock and Vibration, Vol. 18, pp. 407-424, 2011.
• [12] http://www.dynaexamples.com/sph.
• [13] https://grabcad.com/library/augusta-a-109-1.
• [14] http://www.agustawestland.com/product/helicopters/aw109-power-2.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).