THE USE OF SMOOTH BENDING MOMENT MODES IN HELICOPTER ROTOR BLADE VIBRATION STUDIES

被引：0
|
作者：
DONE, GTS
PATEL, MH
机构：
[1] City Univ, London, Engl, City Univ, London, Engl
来源：
JOURNAL OF SOUND AND VIBRATION | 1988年 / 123卷 / 01期
关键词：
AERODYNAMICS - Wings and Airfoils - HELICOPTERS - Rotors;
D O I：
10.1016/S0022-460X(88)80079-8
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The application of a special type of assumed mode in problems of helicopter rotor blade vibration is described. These assumed modes thus have a smoothly varying bending moment distribution, as actually occurs on the rotor blade. Similar types of assumed mode are used to represent twisting motion. Natural frequencies and normal mode shapes for a rotating helicopter rotor blade are evaluated by using these special assumed modes. The results are seen to compare favorably with results obtained more conventionally and with a more detailed mathematical model.
引用
收藏
页码：71 / 80
页数：10
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