The effect of rotating loads suspended under a helicopter on their amplitude-frequency characteristics

被引：0
|
作者：
Tyurin, B.F. [1 ]
Siparov, S.V. [1 ]
Stel'makov, E.S. [1 ]
Novozhilov, K.A. [1 ]
机构：
[1] Akademiya GA, Sankt-Peterburg, Russia
来源：
Izvestiya Vysshikh Uchebnykh Zavedenij. Aviatsionnaya Tekhnika | 1993年 / 04期
关键词：
Aerodynamics - Dynamics - Loading - Rotation - Stability criteria - Test facilities;
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中图分类号：
学科分类号：
摘要：
The twisting of a load on the outer suspension of a helicopter is regarded as a way to provide its transportation stability during the flight. Basic physics of the load stabilization is discussed. The experimental research results have been presented to determine amplitude-frequency characteristics and aerodynamic coefficients of rotating loads. The loads have the form of a parallelepiped and a ring cylinder. Three factors affect the stabilization of a rotating load. They are: the gyroscopic effect, symmetrization of the load shape and mismatch in oscillation frequencies.
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页码：81 / 84
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