Dynamic model of rotor blade behaviour
There are more than 40 Ka-26 rotorcrafts today in Hungary. They have glass-fibre composit e rotor blades had been constructed (at 1969) there were possibilities only for the static strengths analysis. Conversely the rotor blades are loaded by a lot of basically unsteady effects. For determination of...
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| Format: | Article |
| Published: |
2009
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| Series: | Review of faculty of engineering : analecta technica Szegedinensia
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| Kulcsszavak: | Mérnöki tudományok |
| Online Access: | http://acta.bibl.u-szeged.hu/11804 |
| Summary: | There are more than 40 Ka-26 rotorcrafts today in Hungary. They have glass-fibre composit e rotor blades had been constructed (at 1969) there were possibilities only for the static strengths analysis. Conversely the rotor blades are loaded by a lot of basically unsteady effects. For determination of them nowadays much more concinnity methods (theoretic examinations for exampl e vortex theories; 1:1 rale wind tunnel tests: flight tests) are used. Unfortunately such methods are very expensive and they often give different results. For the successful calculation of dynami c loads of a rotor blade (mainly by a bottom blade of a coaxial system) with the possibilities are available for me in Hungary. I had to develop such method thai has a satisfactory accuracy, take into consideration the unsteady effects, and easy realisable and usable with a PC. In this paper I presented analysis of aerodynamic-dynami c behaviour of the bottom rotor blade and the relation between the static and dynamic loads of the bottom rotor blade of coaxial rotor system using that aerodynamic-dynamic-aero elastic model. Results could give the base of the life time limit lengthen of that blades as validated by the present exploration. |
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| Physical Description: | 120-128 |
| ISSN: | 1788-6392 |