DETERMINATION OF OPTIMAL AZIMUTH FOR MOUNTING ULTRALIGHT COAXIAL HELICOPTER BLADES
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Abstract
The possibility of reducing vibration of the ultralight coaxial helicopter blades on the through harmonic wave by mounting blades on the optimal azimuth is shown. The methods of the aerodynamic calculation of rotors and the calculation results for the horizontal flight of “Rotorfly” helicopter are offered. The optimal azimuth of blades intersection is defined as 37.5 degrees angle along the direction of the upper rotor rotation.
About the Authors
Vitaly V. Dudnik
Don State Technical University
Russian Federation
Russian Federation
Vladimir A. Kolot
Don State Technical University
Russian Federation
Russian Federation
References
1. Belocerkovskij S.M. Issledovanie na E`VM ae`rodinamicheskix i ae`rouprugix xarakteristik vintov vertolyotov / S.M. Belocerkovskij, B.E. Loktev, M.I. Nisht. - M.: Mashinostroenie, 1992. - 160 s. - In Russian.
2. Gessou A. Ae`rodinamika vertolyota / A. Gessou, G. Mejers. - M.: Oborongiz, 1954. - 256 s. - In Russian.
3. Dzhonson U. Teoriya vertolyota. T.1 / U. Dzhonson. - M.: Mir, 1983. - 502 s. - In Russian.
4. Mil` M.L. Vertolyoty`. Raschyot i proektirovanie. T.1. Ae`rodinamika / M.L. Mil` [i dr.]. - M.: Mashinostroenie, 1966. - 450 s. - In Russian.
5. Pejn P.R. Dinamika i ae`rodinamiki vertolyota / P.R. Pejn. - M.: Oborongiz, 1963. - 440 s. - In Russian.
6. Anikin V.A. Modeling of Coaxial Helicopter Flight Characteristics / V.A. Anikin, B.A. Vasiliev, V.N. Kvokov // 33 European Rotorcraft Forum. - Kazan, 2007. - S.78.1-78.12.
7. Bourtsev B.N. Helicopter Wake Form Visualization results and their Application to Coaxial Rotor Analysis at Hover / B.N. Bourtsev, V.I. Ryabov, S.V. Selemenev // 27 European Rotorcraft Forum. - M., 2001. - S.64.1-64.13.
8. Kang N. Prediction of the Flow Field of a Rotor in Ground Effect / N. Kang, M. Sun // J. of the American Helicopter Society. - 1997. - N2. - S.195-198.
Review
For citations:
Dudnik V.V., Kolot V.A. DETERMINATION OF OPTIMAL AZIMUTH FOR MOUNTING ULTRALIGHT COAXIAL HELICOPTER BLADES. Vestnik of Don State Technical University. 2011;11(5):667-675. (In Russ.)
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