Blast wave and suspension system interaction - numerical approach

• Autorzy: Baranowski P. , Małachowski J.
• Języki publikacji: EN

Abstrakty

EN

The main aim of this paper is to present the effective example of coupled experimental and numerical tests. Moreover, a development process of a numerical model of a terrain vehicle suspension system is presented. Experimental tests were carried out on the machine Instron 8802 with an assistance of the high-speed camera Phantom v12. Obtained stress-strain curves were applied into the FE model to estimate material constants for Mooney-Rivlin constitutive rubber model and for numerical failure criterion. Geometry of the tire and other suspension elements were achieved using reverse engineering technology. Due to the fact that a tire is such a complex structure to be represented with numerical methods, it was important to develop a discrete model of tire as much similar to the real one as possible. Consequently, an exact tire cords pattern was implemented into the FE model of the tire, which was obtained by the assistance of a microscope and X-ray device. In the next step, numerical analyses were performed simulating the TNT explosion under the suspension system with a simplified motor-car body. Nonlinear dynamic simulations were carried out using the explicit LS-Dyna code, with central difference scheme with modified the time integration of the equation of motion. In order to simulate the blast wave propagation the Smoothed Particle Hydrodynamics (SPH) method and Arbitrary Lagrangian-Eulerian formulation with Jones Wilkins Lee (JWL) equation defining the explosive material were used. Finally, results from both approaches were compared.

Słowa kluczowe

EN

suspension system; pressure wave; SPH; ALE; FE modeling

• 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: 2011
• Tom: Vol. 18, No. 2
• Strony: 17--24
• Opis fizyczny: Bibliogr. 9 poz., rys.

Twórcy

autor

Baranowski P.

autor

Małachowski J.

• Military University of Technology, Faculty of Mechanical Engineering, Department of Mechanics and Applied Computer Science Kaliskiego Street 2, 00-908 Warsaw, Poland phone: [phone], fax: [phone],

Bibliografia

• [1] Lacome, J. L., Analysis of Mine Detonation, SPH analysis of structural response to antivehicles mine detonation, LSTC, 2007.
• [2] Morka, A., Kwaśniewski, L., Wekezer, J., Assessment of Passenger Security in Paratransit Buses, Journal of Public Transportation, Vol. 8, pp. 47-63, 2005.
• [3] Włodarczyk, E., Fundamentals of detonation, Military University of Technology, Warsaw 1995.
• [4] Neves, R. R. V., Micheli, G. B., Alves, M., An experimental and numerical investigation on tyre impact, International Journal of Impact Engineering, Vol. 10, pp. 685-693, 2010.
• [5] Cho, I. R., Kim, K. W., Jeong, H. S., Numerical investigation of tire standing wave using 3-D patterned tire model, Journal of Sound and Vibration, Vol. 305, pp. 795-807, 2007.
• [6] Pondel, B., Małachowski, J., Numeryczna analiza pracy opony samochodowej, WAT, Warszawa 2006.
• [7] Baranowski, P., Małachowski, J., Numerical analysis of vehicle suspension system response subjected to blast wave, Journal of KONES Powertrain and Transport, Vol. 18, No. 1, 2011.
• [8] Hallquist, J. O., LS-Dyna. Theory manual, California Livermore Software Technology Corporation, 1998.
• [9] Małachowski, J., Modelowanie i badania interakcji ciało stałe-gaz przy oddziaływaniu impulsu ciśnienia na elementy konstrukcji rurociągu, BEL Studio, Warszawa 2010.