Abstract
The turbulent boundary layer (TBL) is one of the dominant external noise sources in high subsonic aircrafts. Especially in modern aircrafts where common materials for fuselages are currently substituted by carbon-fiber-reinforced-plastics (CFRP), it is essential to avoid a decrease of passenger comfort as a result of an inferior transmission loss of the new materials. To increase the transmission loss of CFRP panels they are equipped with active noise reduction systems. In this paper the results of an experimental study in the aeroacoustic wind tunnel of the German Aerospace Center (DLR) are presented. An active panel excited by a TBL is tested at flow speeds up to Mach 0.16. The CFRP panel (500 × 800 × 2.7 mm3) is equipped with five piezo-ceramic patch actuators and ten accelerometers. Active structural acoustic control (ASAC) and active vibration control (AVC) are used to reduce the broadband TBL noise transmission in the bandwidth from 1 to 500 Hz. Feedforward (FF) and feedback (FB) control algorithms are applied in the experiments and show high performance even in presence of plant uncertainties. To improve control results the generalized plant framework of robust control is utilized for global feedback control. Finally, an overview of the achieved results is given.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Wilby, J.F.: Aircraft interior noise. J. Sound Vib. 190(3), 545–564 (1996)
Corcos, G.M.: The structure of the turbulent pressure field in boundary-layer flows. J. Fluid Mech. 18, 353–378 (1964)
Gibbs, G.P., Cabell, R.H.: Active control of turbulent boundary layer induced sound radiation from multiple aircraft panels. In: Proceedings of 8th AIAA/CEAS Aeroacoustics Conference, Breckenridge, CO (2002)
Schiller, N.H., Fuller, C.R.: A high-authority/low-authority control strategy for coupled aircraft-style bays. In: Proceedings of ACTIVE 2006, Adelaide, Australia (2006)
Rohlfing, J., Gardonio, P.: Homogeneous and sandwich active panels under deterministic and stochastic excitation. J. Acoust. Soc. Am. 125(6), 3696–3706 (2009)
Thomas, D.R., Nelson, P.A.: Feedback control of sound radiation from a plate excited by a turbulent boundary layer. J. Acoust. Soc. Am. 98(5), 2651–2662 (1995)
Maury, C., Gardonio, P., Elliott, S.J.: Model for active control of flow-induced noise transmitted through double partitions. AIAA J. 40, 1113–1121 (2002)
Heintze, O., Rose, M., Algermissen, S., Misol, M.: Development and experimental application of a pre-design tool for active noise and vibration reduction systems. In: Proceedings of ACTIVE 2009, Ottawa, Canada (2009)
Ewert, R.: Rpm––the fast random particle-mesh method to realize unsteady turbulent sound sources and velocity fields for caa applications. In: Proceedings of 13th AIAA/CEAS Aeroacoustics Conference. http://elib.dlr.de/52932/ (2007)
Siefert, M., Ewert, R. (2009), Anisotropic synthetic turbulence with sweeping generated by random particle-mesh method. In: Peinke, J., Oberlack, M., Talamelli, A. (eds.) Progress in Turbulence III: Proceedings of the iTi Conference in Turbulence, p. 143
Katayama, T.: Subspace Methods for System Identification. Springer, London (2005)
Algermissen, S., Rose, M., Keimer, R., Monner, H.P., Breitbach, E.: Automated synthesis of robust controllers for smart-structure applications in parallel robots. In: Proceedings of AIAA/ASME/AHS Adaptive Structures Conference, Honolulu, USA (2007)
Algermissen, S., Rose, M., Keimer, R., Sinapius, M.: Robust gain-scheduling for smart-structures in parallel robots. In: 16th Annual International Symposium on Smart Structures and Materials, SPIE, San Diego (2009)
Elliott, S.: Signal Processing for Active Control. Academic Press, London (2001)
Kuo, S.M., Morgan, D.R.: Active Noise Control Systems. John Wiley & Sons, New York (1996)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
Algermissen, S., Misol, M., Unruh, O. (2013). Reduction of Turbulent Boundary Layer Noise with Actively Controlled Carbon Fiber Reinforced Plastic Panels. In: Wiedemann, M., Sinapius, M. (eds) Adaptive, tolerant and efficient composite structures. Research Topics in Aerospace. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29190-6_34
Download citation
DOI: https://doi.org/10.1007/978-3-642-29190-6_34
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-29189-0
Online ISBN: 978-3-642-29190-6
eBook Packages: EngineeringEngineering (R0)