Analysis of the loads acting on the rotor of a helicopter model close to an obstacle in moderate windy conditions

被引：12

作者：

Zagaglia, D. ^{[1
]}

Zanotti, A. ^{[1
]}

Gibertini, G. ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Sci & Tecnol Aerospaziali, Campus Bovisa,Via La Masa 34, I-20156 Milan, Italy

来源：

AEROSPACE SCIENCE AND TECHNOLOGY | 2018年 / 78卷

关键词：

Helicopter; Interactional aerodynamics; Ground obstacles; Rotor loads; Ground effect; Wind tunnel; SHIP AIRWAKE; CHANNEL FLOW; SIMULATION; FUSELAGE;

D O I：

10.1016/j.ast.2018.05.019

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The present paper describes an experimental investigation of the loads acting on a rotor when it interacts with a simplified cuboid obstacle, representing a low-rise building, in moderate windy conditions. Measurements of forces and moments acting on the rotor were carried out by means of a six-component balance in order to assess the rotor performance for several helicopter positions with respect to the obstacle. Wind tunnel tests have been carried out at an advance ratio of mu = 0.05 and compared with the corresponding wind-off tests. The investigation showed that ground effect on the obstacle is generally mitigated in windy conditions and that severe detrimental effects are encountered when the helicopter enters the obstacle wake, especially when the helicopter interacts with its lateral vortex structures. (C) 2018 Elsevier Masson SAS. All rights reserved.

引用

页码：580 / 592

页数：13

共 23 条

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