空气动力学学报2018，Vol.36Issue(3)：417-431,15.DOI:10.7638/kqdlxxb-2017.0141
基于CFD/CSD/FW-Hpds综合方法的旋翼BVI噪声IBC主动控制参数影响分析
Parameter influence analyses of IBC active control on rotor BVI noise based upon an integrated CFD/CSD/FW-Hpds method
摘要
Abstract
An integrated CFD/CSD/FW-Hpds method is established to investigate the individual blade control (IBC) technique for reducing rotor blade-vortex interaction (BVI)noise.Based on this integrated method,the main BVI noise,i.e.,the medium-frequency noise of UH-60A rotor in an oblique descending flight can be reduced by more than 10 dB with the IBC control.The sound pressure level (SPL)of the BVI noise can get a reduction of more than 7 dB by selecting the reasonable IBC control inputs.The BVI noise can be effectively enervated in various flight conditions such as different flight trajectories,especially with a descent angle of 10°.关键词
桨涡干扰噪声/单独桨叶控制/NS方程/FW-Hpds方程/CFD/CSD耦合方法/参数影响Key words
blade-vortex interaction noise/individual blade active control/Navier-Stokes equations/FW-Hpds equations/CFD/CSD coupling method/parameter influence分类
航空航天引用本文复制引用
倪同兵,招启军,马砾..基于CFD/CSD/FW-Hpds综合方法的旋翼BVI噪声IBC主动控制参数影响分析[J].空气动力学学报,2018,36(3):417-431,15.基金项目
国家自然科学基金(11572156) （11572156）
