Rotary Wings Morphing Technologies: State of the Art and Perspectives
| Autor: | Silvestro Barbarino, Thomas H. Lawrence, Matthew L. Wilbur, Mihir P. Mistry, Uwe T. P. Arnold, Robert H. Blackwell, Peter F. Lorber |
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| Rok vydání: | 2018 |
| Předmět: |
020301 aerospace & aeronautics
Engineering business.industry Rotor (electric) Aviation Blade pitch Ranging 02 engineering and technology Aerodynamics law.invention Morphing 020303 mechanical engineering & transports 0203 mechanical engineering law Systems engineering Aerospace engineering business Search and rescue Servo |
| Popis: | Helicopters play significant roles in aviation for search and rescue operations and for transportation of people or goods in remote or inaccessible places. They can fulfill these roles because of their capability to take off and land vertically and to hover for periods of time. A rotary-wing aircraft is exposed to a complex operating aerodynamic environment when compared to fixed-wing aircraft. This complexity introduces a plethora of issues, ranging from limited performance in forward flight to a high vibration and noise environment, which negates a “jet smooth” ride. This chapter presents an overview of the solutions investigated to overcome these issues, with a particular focus on state-of-the-art of morphing technologies applied to rotor blades. Different technologies are presented and discussed, ranging from proof-of-concept prototypes to solutions currently in production. Following the overview, a critical review of some significant efforts is presented. To date, the only morphing technology that has made it to a production helicopter is servo flaps, first used in the Kaman K-125. Other morphing solutions, such as active twist of rotor blades, are mature enough for use on unmanned aerial vehicles (UAVs). Individual blade control (IBC) is being investigated in several projects on full-scale helicopters and is possibly the next morphing technology closest to production. The benefits of higher harmonic control have been investigated and tested by multiple authors. |
| Databáze: | OpenAIRE |
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