Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Daniel Feszty"'
Publikováno v:
Acta Technica Jaurinensis, Vol 13, Iss 3, Pp 177-196 (2020)
This paper presents a novel methodology for measuring the Damping Loss Factor (DLF) of a slightly damped plate in the mid-frequency range (400-1000 Hz) by the Half Power Bandwidth Method (HPBM). A steel flat plate of 650 x 550 x 2 mm was considered a
Externí odkaz:
https://doaj.org/article/bec0c2c7794848baa6f367e995fe4325
Autor:
János Csaba Kun, Daniel Feszty
Publikováno v:
Acta Technica Jaurinensis, Vol 12, Iss 3, Pp 218-236 (2019)
Recent trends in vehicle engineering require manufacturers to develop products with highly refined noise, vibration and harshness levels. The use of trim elements, which can be described as Poroelastic materials (PEM), are key to achieve quiet interi
Externí odkaz:
https://doaj.org/article/cf445135f941460a9ce0265124ccc431
Autor:
David Sipos, Daniel Feszty
Publikováno v:
Journal of Theoretical and Computational Acoustics.
Publikováno v:
Manufacturing Technology. 21:544-558
Publikováno v:
INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 263:4880-4888
Efficiency requirements prompt manufacturers to develop ever lighter acoustic packages in vehicles. Poroelastic materials are essential to achieve the desired interior noise level targets and thus the simulation of their effects is of utmost importan
Autor:
Marcell Ferenc Treszkai, Daniel Feszty
Publikováno v:
INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 263:3953-3962
Modelling of junctions is one of the most challenging tasks in vibroacoustics, especially for Statistical Energy Analysis (SEA), where the results heavily depend on the damping (DLF) and coupling loss factors (CLF). Also, it is an interesting questio
Publikováno v:
INTER-NOISE and NOISE-CON Congress and Conference Proceedings. 263:4799-4809
Recent developments in acoustic simulation methods allowed engineers to assess the vibroacoustic behavior of various type of structures within a virtual environment, thus allowing the replacement of prototype-based development with simulations. Howev
Publikováno v:
Journal of Vibroengineering, Vol 23, Iss 5, Pp 1267-1277 (2021)
Damping Loss Factor (DLF) is an important input parameter in Statistical Energy Analysis (SEA) simulations, therefore its accurate determination via measurement is crucial from simulation accuracy point of view. This paper presents a methodology for
Autor:
Daniel Feszty, Khider Al-Jaburi
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering. 236:308-323
A novel passive approach for controlling the flow in a 2D dynamic stall at variabl freestream is investigated. 2D computational fluid dynamics simulations of an SC1095 airfoil with surface-based trapped vortex generator (STVG) type passive flow contr
Autor:
David Sipos, Daniel Feszty
Publikováno v:
Acta Technica Jaurinensis, Vol 12, Iss 4, Pp 335-346 (2019)
This paper describes the development of an NVH measurement procedure that can be used for comparisons to Statistical Energy Analysis (SEA). In SEA, the outputs of the simulation are ensemble averaged quantities for each subsystem, which can be obtain