Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
TACO: Helicopter noise predictions
Date
2019-01-01
Author
Yücekayalı, Arda
Şenipek, Murat
Ortakaya, Yüksel
Özyörük, Yusuf
Metadata
Show full item record
Item Usage Stats
245
views
0
downloads
Cite This
© 2019 The Vertical Flight Society. All rights reserved.In this paper, isolated rotor noise validation and identification of full helicopter BVI noise are performed by a recently developed aerodynamic noise calculation code TACO. TACO results are compared and validated with PSU-WOPWOP which is a widely known aerodynamic noise calculation tool and HART-II wind tunnel test data. Time dependent pressure and blade position data required by the acoustic codes are generated with CHARM using full helicopter trim approach. Hovering flight acoustic characteristics from various observer locations are estimated with TACO and compared with results of PSU-WOPWOP. Finally, CHARM full helicopter trim option is utilized with TACO to study Blade-Vortex Interaction dominated flight condition acoustic characteristics.
URI
https://hdl.handle.net/11511/81555
https://www.vtol.org/store/product/taco-helicopter-noise-predictions-13459.cfm
Collections
Department of Aerospace Engineering, Conference / Seminar
Suggestions
OpenMETU
Core
Fretting fatigue failure of lug-bush connection members under tensile loading
Özen, Emine Burçin; Çöker, Demirkan (2019-01-01)
© 2019 The Vertical Flight Society. All rights reserved.Lug-bush connection members are used widely in the aerospace industry. Under cyclic loads, these connection members fail due to fretting fatigue. The tensile fatigue loading creates sliding and sticking regions at the lug-bush interface and leads to the fracture of the lug. In this study, four different lug-bush members are investigated. Different surface conditions are observed at the sticking and sliding regions of all members. Black residues are obs...
Simulation model fidelity enhancement using corrective force and moment increments: Review of activity performed in NATO-AVT Panel 296
Taghizad, Armin; White, Mark; Cameron, Neil; Padfield, Gareth; Yavrucuk, İlkay; Myrand-Lapierre, Vincent; Nadeau-Beaulieu, Michel; Richard, Sylvain; Tischler, Mark (2021-01-01)
Copyright © 2021 by the Vertical Flight Society. All rights reserved.The Applied Vehicle Technology (AVT) Panel of the NATO Science and Technology Organization has recently engaged a Research Task Group on the topic of rotorcraft flight simulation model fidelity. This group aimed to explore a comprehensive set of methods for flight mechanics simulation fidelity enhancement, including training simulation applications. Particular effort was also directed to the metrics used for simulation fidelity model asses...
Tilt duct vertical takeoff and landing uninhabited aerial vehicle concept design study
Armutcuoglu, O; Kavsaoglu, MS; Tekinalp, Ozan (American Institute of Aeronautics and Astronautics (AIAA), 2004-03-01)
A new autonomously controlled tilt-duct vertical takeoff and landing uninhabited aerial vehicle concept is proposed. This design combines the vertical flight capability of a helicopter and forward flight performance of a fixed-wing conventional aircraft. The two main engines and propellers are located inside the tilting ducts attached to the wing tips. There is a third engine-propeller combination located inside the all fuselage for pitch and yaw control during hover and transition. The advantages and disad...
Single hidden layer neural network based model reference adaptive controller for estimation of periodic disturbances
Gezer, Rüştü Berk; Kutay, Ali Türker (2019-01-01)
© 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc.A model reference adaptive controller effective for systems under periodic disturbances is proposed. The disturbance on the system is assumed to be purely periodic. The parametrization of the adaptive controller uses single hidden layer neural network architecture. The basis functions of this parametrization are formed by elements of Fourier series. The adaptation is done by using a Lyapunov bas...
Vision-based detection and distance estimation of micro unmanned aerial vehicles
Gökçe, Fatih; Üçoluk, Göktürk; Department of Computer Engineering (2015)
In this thesis, we study visual detection and distance estimation of Micro Unmanned Aerial Vehicles (mUAVs), a crucial problem for (i) intrusion detection of mUAVs in protected environments, (ii) sense and avoid purposes on mUAVs or on other aerial vehicles and (iii) multi-mUAV control scenarios such as environmental monitoring, surveillance and exploration. The problem is challenging since (i) a real-time solution is required, a burden when computational power is limited by the hardware carried by an mUAV,...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
A. Yücekayalı, M. Şenipek, Y. Ortakaya, and Y. Özyörük, “TACO: Helicopter noise predictions,” 2019, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/81555.