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Piezoelectric Deicing System for Rotorcraft
Journal of the American Helicopter Society, 2015Deicing using piezoelectric actuators is considered as a potential solution to the development of low-energy ice protection systems for rotorcraft. This type of system activates resonant frequencies of a structure using piezoelectric actuators to generate sufficient stress to break the bond between the ice and the substrate.
Villeneuve, Éric +4 more
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The Aeronautical Journal, 2003
A few of us, like Tennyson, have the gift of foreseeing the future. (see Fig. I). Another few, like Juan de la Cierva have the gift of delivering the future. They are the innovators.Those who know Tennyson's verse will recall that his vision was of transportation by air of people and freight and also sadly of weapons.
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A few of us, like Tennyson, have the gift of foreseeing the future. (see Fig. I). Another few, like Juan de la Cierva have the gift of delivering the future. They are the innovators.Those who know Tennyson's verse will recall that his vision was of transportation by air of people and freight and also sadly of weapons.
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The Journal of the Royal Aeronautical Society, 1966
This brief historical note on British rotorcraft may be likened to the small visible part of a large iceberg and the reasons for it are these.When I was asked to write this note for the Society's Journal I agreed to undertake the task with certain reservations. In the first instance there was very little time in which to do it.
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This brief historical note on British rotorcraft may be likened to the small visible part of a large iceberg and the reasons for it are these.When I was asked to write this note for the Society's Journal I agreed to undertake the task with certain reservations. In the first instance there was very little time in which to do it.
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The Aeronautical Journal, 1971
The sound of a rotorcraft is very complex in nature since it is a combination of the sound produced by several individual sources, which in the main generate acoustic energy by more than one mechanism. Externally, the important sources are rotor noise and engine noise; while internally transmission system (gear) noise is an additional source.
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The sound of a rotorcraft is very complex in nature since it is a combination of the sound produced by several individual sources, which in the main generate acoustic energy by more than one mechanism. Externally, the important sources are rotor noise and engine noise; while internally transmission system (gear) noise is an additional source.
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Advances in rotorcraft system identification
Progress in Aerospace Sciences, 1997Abstract System identification can best be described as the extraction of system characteristics from measured flight test data. Therefore it provides an excellent tool for determining and improving mathematical models for a wide range of applications.
Hamel, P.G., Kaletka, J.
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Physics Bulletin, 1971
Noise within the vicinity of many airports is gradually reaching intolerable levels and action is urgently required to prevent a further deterioration of this situation. The introduction of special take off flight paths and noise monitoring near airports has restricted the spread of the 'take off' noise.
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Noise within the vicinity of many airports is gradually reaching intolerable levels and action is urgently required to prevent a further deterioration of this situation. The introduction of special take off flight paths and noise monitoring near airports has restricted the spread of the 'take off' noise.
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Aircraft Engineering and Aerospace Technology, 1997
Reviews recent advances in rotorcraft technology as presented at a recent Royal Aeronautical Society conference on innovation in rotorcraft technology and the 1997 Paris Air Show. Reports research initiatives to improve key rotorcraft technologies in the areas of obstacle detection, vibration and noise reduction and smart structures.
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Reviews recent advances in rotorcraft technology as presented at a recent Royal Aeronautical Society conference on innovation in rotorcraft technology and the 1997 Paris Air Show. Reports research initiatives to improve key rotorcraft technologies in the areas of obstacle detection, vibration and noise reduction and smart structures.
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The Aeronautical Journal, 2003
In writing this essay on rotorcraft I have chosen to confine my interests to the flying machines themselves, their development and the pressures that are shaping their future.
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In writing this essay on rotorcraft I have chosen to confine my interests to the flying machines themselves, their development and the pressures that are shaping their future.
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Application of Rotorcraft Damage Tolerance to Rotorcraft Drive System Components
Proceedings of the Technical Specialists Meeting on Rotorcraft Structures and Survivability - Williamsburg, Virginia 2009, 2009Application of Rotorcraft Damage Tolerance to Rotorcraft Drive System Components.
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The ServoHeli-20 Rotorcraft UAV Project
2008 15th International Conference on Mechatronics and Machine Vision in Practice, 2008This paper describes research on the design, implement and testing of a small-scaled rotorcraft unmanned aerial vehicle (RUAV) system - ServoHeli-20. A turbine-powered UAV weighted less than 10 kg was designed, and its major components tested by a group of undergraduate students at Shenyang Institute of Automation, Chinese Academy of Sciences in ...
Juntong Qi +3 more
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