本文選題：共軸剛性旋翼 + 直升機(jī)　； 參考：《南京航空航天大學(xué)學(xué)報(bào)》2016年04期

【摘要】：共軸剛性旋翼直升機(jī)在突破常規(guī)直升機(jī)前飛速度極限的同時(shí)會(huì)產(chǎn)生巨大的槳轂阻力。為研究共軸剛性旋翼直升機(jī)槳轂的阻力特性,采用天平測(cè)力的方式在1.4m×1.4m直流風(fēng)洞中對(duì)不同的共軸雙槳轂組合模型進(jìn)行了風(fēng)洞試驗(yàn)。試驗(yàn)狀態(tài)變量包括槳轂轉(zhuǎn)速、模型各部件間縫隙和不同整流模型組合。試驗(yàn)結(jié)果表明:共軸雙槳轂試驗(yàn)?zāi)Ｐ偷淖枇κ軐?duì)稱光滑槳轂旋轉(zhuǎn)運(yùn)動(dòng)的影響基本可忽略;各整流部件間縫隙對(duì)模型所受阻力影響較大,大縫隙會(huì)使試驗(yàn)?zāi)Ｐ妥枇υ龃?各整流部件分離尾流存在較大的氣動(dòng)干擾,使模型所受阻力明顯增加。
[Abstract]:Coaxial rigid rotor helicopter can break through the forward speed limit of conventional helicopter and produce huge hub resistance at the same time.In order to study the resistance characteristics of coaxial rigid rotor helicopter hub, the wind tunnel tests of different coaxial double propeller hub combination models were carried out in a 1.4 m 脳 1.4 m DC wind tunnel by using a balance method.The experimental state variables include the rotating speed of the propeller hub, the gap between the components of the model and the combination of different rectifying models.The experimental results show that the resistance of the coaxial double impeller hub test model can be neglected by the rotating motion of the symmetrical smooth hub, the gap between the rectified parts has a great influence on the resistance of the model, and the large gap will increase the resistance of the test model.There is a large aerodynamic disturbance in the separation wake of each rectifier, which increases the resistance of the model.
【作者單位】： 中國空氣動(dòng)力研究與發(fā)展中心低速空氣動(dòng)力研究所;
【基金】：中國空氣動(dòng)力研究與發(fā)展中心低速所創(chuàng)新基金(222H130590701B)資助項(xiàng)目
【分類號(hào)】：V275.1

【相似文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 吳文健;無人共軸剛性直升機(jī)氣動(dòng)特性分析及視景仿真研究[D];吉林大學(xué);2015年

，

本文編號(hào)：1768168