摘要
颤振课题是飞机设计过程中常常遇到的一个关键技术问题。以支线客机ARJ21超临界机翼颤振特性研究为背景,在俄罗斯TsAGI的T-106风洞中完成了该复合材料机翼跨音速颤振实验,基于N-S方程和无限插值方法(TFI)生成三维贴体运动网格对超临界机翼跨音速颤振进行了并行计算。结果表明:复合材料的超临界机翼在跨音速区域具有跨音速颤振"凹坑"现象;与风洞实验结果相比,有较好的一致性,为使用超临界机翼的运输类飞机跨音速颤振特性预计提供了一定的参考。
Flutter subject is usually a key technical problem during the process of aircraft design.In order to get ARJ21 supercritical-wing flutter characteristics,the wind tunnel flutter trials are completed in the Russian TsAGI＇s T-106 transonic wind tunnel.In addition,based on solving the N-S equations and transfinite interpolation（TFI） generating three-dimensional body-fitted grids are generated and applied to compute transonic flutter boundary for the supercritical-wing model in parallel program.The results show that the objective law for composite transonic wing flutter ＂dip＂ phenomena is existed;the results of calculations are in good agreement with wind tunnel tests,which supplies definite reference to prediction of supercritical-wing flutter characteristics of transport aircraft.
出处
《航空工程进展》
2012年第1期23-27,共5页
Advances in Aeronautical Science and Engineering
基金
国家自然科学基金(10602046)
航天科技创新基金(CASC20-0901)
