- Tytuł:
- Dynamic response of ladder track rested on stochastic foundation under oscillating moving load
- Autorzy:
-
Mohammadzadeh, S.
Mehrali, M. - Powiązania:
- https://bibliotekanauki.pl/articles/279454.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
ladder track
moving load
stochastic stiffness
perturbation theory - Opis:
- 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.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2017, 55, 1; 281-291
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł