主管单位:中华人民共和国工业和信息化部
主办单位:西北工业大学  中国航空学会
地       址:西北工业大学友谊校区航空楼
应用CFD方法的舰载直升机舰面气弹响应计算与分析
作者:
作者单位:

1.南京航空航天大学 直升机旋翼动力学国家级重点实验室;2.兰州理工大学

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中图分类号:

V211.52

基金项目:

江苏高校优势学科建设工程资助项目


Calculation and Analysis of Shipboard Helicopter Aeroelastic ResponseUsing CFD Method on Ship-deck
Author:
Affiliation:

Nanjing University of Aeronautics and Astronautics,National Key Laboratory of Science and Technology on Rotorcraft Aeromechanics

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    摘要:

    舰载直升机所处的环境恶劣,其旋翼桨尖易产生过度挥舞与机身发生碰撞等事故,研究直升机舰面气弹响应可预防此类事故的出现。本文应用CFD 方法获得舰船流场数据,结合桨叶动力学模型,综合提出旋翼气弹响应计算分析方法,研究不同来流速度、悬停位置与风向角下旋翼的气弹响应。结果表明:本文提出的气弹响应计算分析方法正确可行;舰船来流速度的增加会引起桨尖响应最大值的增大,速度从20 m/s 变为40 m/s时,响应幅值增加了8.35%;悬停位置主要影响桨尖位移响应沿桨盘方位角的分布;来流风向角的改变会显著影响旋翼气弹响应,桨尖挥舞位移最大值与舰船尾流场的垂向速度分布有关,变化梯度越大桨尖挥舞最大值亦越大。

    Abstract:

    The shipboard helicopter is in a harsh environment and its rotor tip is prone to over-swing and collision with the body. The research on the aeroelastic response on the ship surface of the helicopter can prevent such accidents. In this paper, CFD method is used to obtain the data of ship flow field. Combining with blade dynamic model, a comprehensive calculation and analysis method of rotor aeroelastic response is proposed and the aeroelastic response of the rotor under different inflow speed, hovering position and wind direction is studied. The results show that the method used in this paper is correct. The maximum response of rotor tip increases with the increase of ship inflow speed. When the speed changes from 20m/s to 40m/s, the response amplitude increases by 8.35%; The hovering position mainly affects the distribution of tip displacement response along the azimuth angle of the rotor disc. The change of inflow wind direction angle significantly affects the aeroelastic response of the rotor. The maximum flapping displacement of the blade tip is related to the vertical velocity distribution of the ship"s wake flow field. The greater the change gradient, the greater the maximum flapping of the blade tip.

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张冉,徐国华,史勇杰,王清.应用CFD方法的舰载直升机舰面气弹响应计算与分析[J].航空工程进展,2022,13(4):48-56

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  • 收稿日期:2021-08-24
  • 最后修改日期:2021-11-18
  • 录用日期:2021-11-23
  • 在线发布日期: 2022-06-08
  • 出版日期: