Analysis the dynamic stability of plate

• Autorzy: Misiak J. , Stachura S.
• Języki publikacji: EN

Abstrakty

EN

In this paper a numerical approach to analyze the dynamic stability of a ribbed plate subjected to harmonic loading is presented. The harmonic balance method and the modified Newmark method of direct integration to solve the equations of motion are used, Unstable regions which include resonant frequencies of the external load are discussed. Then the Stability loss occurs by flutter, i.e. exponentially growing oscillations. The modified Newmark direct integration method to analyze the equations of motion is used. Some results which describe the time history of resonance vibrations (unstable) and those nonresonances (stable) are presented. The  effects of constraint parameters such a modulation depth beta and constraint frequency fi are investigated. Also the initial load and internal damping are taken into account. Physical rigidity of plate may be changed by adding initial tension load, and currently resonance vibration will transform to non-resonance. Stability of the system by means of initial load is the more effective, the larger is the system rigidity in the direction of putting the load, as then may be introduced larger value of initial load. Stability of the system by means of initial load is the more effective, the larger is the system rigidity.

• 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: 2009
• Tom: Vol. 16, No. 1
• Strony: 351--356
• Opis fizyczny: Bibliogr. 3 poz., rys.

Twórcy

autor

Misiak J.

autor

Stachura S.

• University of Ecology and Management Wawelska 14, 02-061 Warsaw, Poland tel: [phone],

Bibliografia

• [1] Bołotin, B, B, Dinamiczieskaja ustojcziwost uprugich sistem, Os. Izd. Tech.-Teor. Lit., Moskwa, 1956.
• [2] Kojič, M, Bathe, K, J, Inelastic Analysis of Solids and Structures, Springer, Berlin-Heidelberg-New York, 2005.
• [3] Misiak, J., Stachura, S., Stateczność dynamiczna powłoki walcowej, Problemy Współczesnej Architektury i Budownictwa, WSEiZ, s. 84-93, Warszawa, 2008.