Т. 51. Бр. 7. "30 години Факултет по транспортно строителство"
Рез. на англ. ез.
Анотация
"In this study the Equivalent Radiated Power (ERP) approach has been applied for assessment of structure borne noise radiated by a steel bridge subjected to train load (Klaerner, Marburg, & Kroll, 2014). Noise is defined as unwanted sound (Heutschi, 2016). In this paper noise and sound are used interchangeably. The main goal of this research effort is on introducing the ERP approach to classify the components of a specific steel bridge structure in terms of noise generated. For this purpose a Finite Element (FE) model will be used to obtain structural vibrations of bridge components. Linearization of the fluid-structure-interaction yields the conclusion that the velocity of a radiating surface equals the velocity of fluid particles in vicinity. This notion represents the ERP approach, which is used in this study (i) to characterize modal noise contribution of noise radiating surfaces and (ii) to estimate the contribution of a vibration mode to the total noise generated. The ERP approach is computationally inexpensive, but it is restricted as discussed in the current study"
Zhelyazkov, A., Moschen, L., Arnuga, I., Fegerl, M. Investigation of structure borne noise for a steel railway bridge,
УАСГ, 2018, с. 107 - 115.
Zhelyazkov, A., Moschen, L., Arnuga, I., Fegerl, M. .
Investigation of structure borne noise for a steel railway bridge.
София: УАСГ, 2018, с. 107 - 115.
Zhelyazkov, A., Moschen, L., Arnuga, I., Fegerl, M. (2018)
Investigation of structure borne noise for a steel railway bridge,
София: УАСГ, с. 107 - 115
Zhelyazkov, A.,
Moschen, L.,
Arnuga, I., &
Fegerl, M.
(2018).
Investigation of structure borne noise for a steel railway bridge. Годишник на Университета по архитектура, строителство и геодезия - УАСГ. София: УАСГ 51 (бр. 7), с. 107 - 115.
