Misol, Malte and Algermissen, Stephan and Monner, Hans Peter and Dinçer, Ugur (2023) DESIGN OF AN ACTIVE NOISE CONTROL SYSTEM FOR A BUSINESS JET WITH TURBOFAN ENGINES. In: 29th International Congress on Sound and Vibration, ICSV 2023, pp. 1-8. IIAV CZECH s.r.o.. 29th International Congress on Sound and Vibration, 2023-07-09 - 2023-07-13, Prag, Tschechien. ISBN 978-801103423-8. ISSN 2329-3675.
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Abstract
An active noise vibration control (ANVC) system is designed for a Dassault Falcon 2000LX business jet. Measurement data from ground tests and recordings from cruise flight reveal narrowband and tonal cabin noise in the bandwidth from 50 Hz to 500 Hz. In both conditions the sound pressure level (SPL) of the tonal components is up to 10 dB above the cabin noise floor. The designed ANVC system is expected to reduce the tonal components to the noise floor. The system is realized on the ceiling panel in the aft of the cabin. A frequency domain filtered-x least mean squares algorithm (FxLMS) is used for control. The main design task is the definition of actuator (inertial exciter) and error sensor (microphone) locations on the ceiling panel and in the cabin fluid. measurement data from a ground vibration test of DLR test aircraft iSTAR is used for the identification of suitable actuator and sensor locations. The system performance is predicted with numerical simulations using sampled sound pressures and identified frequency response functions (FRF). The sound pressures are recorded at 312 locations in the volume of the aft cabin. FRF from 48 actuator locations to 312 microphone locations are available for optimization. The system will be realized in the iSTAR in July 2023. Ground tests will be performed with engine excitation up to 80% N1 (rotational speed of low the pressure compressor shaft).
Item URL in elib: | https://elib.dlr.de/195890/ | ||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||
Title: | DESIGN OF AN ACTIVE NOISE CONTROL SYSTEM FOR A BUSINESS JET WITH TURBOFAN ENGINES | ||||||||||||||||||||
Authors: |
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Date: | July 2023 | ||||||||||||||||||||
Journal or Publication Title: | 29th International Congress on Sound and Vibration, ICSV 2023 | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||
Page Range: | pp. 1-8 | ||||||||||||||||||||
Editors: |
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Publisher: | IIAV CZECH s.r.o. | ||||||||||||||||||||
ISSN: | 2329-3675 | ||||||||||||||||||||
ISBN: | 978-801103423-8 | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | aircraft, interior noise, active control, experiments, ground vibration test | ||||||||||||||||||||
Event Title: | 29th International Congress on Sound and Vibration | ||||||||||||||||||||
Event Location: | Prag, Tschechien | ||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||
Event Start Date: | 9 July 2023 | ||||||||||||||||||||
Event End Date: | 13 July 2023 | ||||||||||||||||||||
Organizer: | IIAV | ||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||
HGF - Program Themes: | Efficient Vehicle | ||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||
DLR - Program: | L EV - Efficient Vehicle | ||||||||||||||||||||
DLR - Research theme (Project): | L - Aircraft Technologies and Integration | ||||||||||||||||||||
Location: | Braunschweig | ||||||||||||||||||||
Institutes and Institutions: | Institut für Systemleichtbau > Adaptronics | ||||||||||||||||||||
Deposited By: | Misol, Dr. Malte | ||||||||||||||||||||
Deposited On: | 31 Jul 2023 07:50 | ||||||||||||||||||||
Last Modified: | 24 Apr 2024 20:56 |
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