Multidisciplinary design and optimization of active trailing edge for smart helicopter rotor blade

Boris A. Grohmann, Christoph Maucher, Tobias Prunhuber, Peter Jänker, Oliver Dieterich, Bernhard Enenkl, Markus Bauer, Elif Ahci, Andree Altmikus, Horst Baier

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

A new concept is proposed for individual blade control: the Active Trailing Edge (ATE). The objective of this paper is to present the current status of design and optimization of the ATE. Due to the specific nature of the subject an inherently multi-disciplinary approach is taken. The aeroservoelastic optimization of the ATE actuator is based on evolutionary algorithm. The resulting optimal actuator design, the sensitivity of the optimal design to manufacturing and material constraints and some key performance characteristics like aeroservoelastic airfoil polars and Mach-number influence on aerodynamic effectiveness are presented. For the purpose of comprehensive rotor dynamics simulation including the dynamic and aeroservoelastic behaviour of the ATE actuator, a reduced-order model is developed. The paper concludes with a presentation of active helicopter benefit analysis.

Original languageEnglish
Pages (from-to)307-324
Number of pages18
JournalMechanics of Advanced Materials and Structures
Volume15
Issue number3-4
DOIs
StatePublished - Mar 2008

Keywords

  • Adaptive helicopter rotor
  • Aeroservoelasticity
  • Piezoceramic actuation
  • Smart composites

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