Dynamic response of ladder track rested on stochastic foundation under oscillating moving load

• Autorzy: Mohammadzadeh S. , Mehrali M.

Identyfikatory

DOI

10.15632/jtam-pl.55.1.281

• Języki publikacji: EN

Abstrakty

EN

The ladder track is a new type of an elastically supported vibration-reduction track system that has been applied to several urban railways. This paper is devoted to the investigation of dynamic behavior of a ladder track under an oscillating moving load. The track is represented by an infinite Timoshenko beam supported by a random elastic foundation. In this regard, equations of motion for the ladder track are developed in a moving frame of reference. In continuation, by employing perturbation theory and contour integration, the response of the ladder track is obtained analytically and its results are verified using the stochastic finite element method. Finally, using the verified model, a series of sensitivity analyses are accomplished on effecting parameters including velocity and load frequency.

Słowa kluczowe

EN

ladder track; moving load; stochastic stiffness; perturbation theory

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2017
• Tom: Vol. 55 nr 1
• Strony: 281--291
• Opis fizyczny: Bibliogr. 34 poz., rys., tab.

Twórcy

autor

Mohammadzadeh S.

• School of Railway engineering, Iran University of Science and Technology, Tehran, Iran

autor

Mehrali M.

• School of Railway engineering, Iran University of Science and Technology, Tehran, Iran

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)