Validation of PANS and active flow control for a generic truck cabin
نویسندگان
چکیده
منابع مشابه
Active Noise Control Experiments in a Fork-lift Truck Cabin
High comfort for the driver in working vehicles is an important feature as well as a demand from the drivers. Low noise level is an essential factor for the manufacturer to maintain a high standard and comfort of vehicles. In many cases the noise inside the cabin can be related to the engine orders. Hydraulic pumps and fans are also related to the engine but not necessarily integers of the engi...
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The noise levels in the passenger cabin of turbopropeller-driven aircraft are typically higher than the noise levels in comparable turbofan-powered aircraft. The sources of noise in a turboprop aircraft include boundary layer flow noise, structure-borne noise due to engine vibration, and acoustic excitation of the fuselage due to the propeller, with the latter being dominant for most turboprop ...
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in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
15 صفحه اولActive Noise Control in an Aircraft Cabin
In propeller driven aircraft the main source for internal noise are almost tonal disturbances caused by the propeller blades that are passing the fuselage. In a certain four propeller military transport aircraft the maximum sound level in the cabin can reach up to 110 dB(A), not taking into account any noise control treatments. Inside the semi closed loadmaster working station (LMWS) the sound ...
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Acoustic energy density’s dependence on particle velocity as well as acoustic pressure makes it a good candidate for an error signal in an adaptive noise control algorithm. It has been shown that minimizing acoustic energy density often provides more global attenuation of an enclosed sound field than minimizing squared acoustic pressure. Nodal regions in three-dimensional enclosed sound fields ...
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ژورنال
عنوان ژورنال: Journal of Wind Engineering and Industrial Aerodynamics
سال: 2017
ISSN: 0167-6105
DOI: 10.1016/j.jweia.2017.10.001