首页|基于最小F-范数修正面元法的高速直升机平尾静气弹计算

基于最小F-范数修正面元法的高速直升机平尾静气弹计算

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与常规构型直升机相比,高速直升机平尾面临更加明显的静气弹效应,工程面元法是静气弹数值计算领域广泛使用的气动建模方法.为了改进面元法计算精度方面的缺陷,同时保持其形式简单且计算高效的优势,提出了一种最小F-范数修正面元法.利用以原始刚性模型和预设扭转模型的CFD数据为基础获得的修正系数矩阵,可使平尾弹性变形状态下气动载荷的面元法与CFD计算结果保持较高一致性.基于所提修正面元法,结合结构有限元模型开展了高速直升机平尾的静气弹数值计算,证明了所提方法在静气弹分析中的适用性和有效性.
Static aeroelasticity computation of high-speed rotorcraft horizontal tail based on minimum F-norm correction panel method
Compared to the conventional configuration rotorcraft,the static aeroelastic effects have more obvious influence upon the high-speed rotorcraft horizontal tail.The engineering panel method is a widely used aerodynamic modeling approach in the field of static aeroelasticity numerical compu-tation.In order to improve the computation accuracy drawback of panel method,and meanwhile keep its intrinsic advantages in formulation simplicity and high efficiency,a novel minimum F-norm correction panel method is herein presented.By using a correction coefficient matrix derived from the CFD data of rigid and preset torsion models,there is subsequently an excellent agreement be-tween panel method and CFD for the aerodynamic loads acting on deformed horizontal tail.Based on the proposed correction panel method,and integrated with structural finite element model,the static aeroelasticicity numerical computation of high-speed rotorcraft horizontal tail is performed,demon-strating the applicability and effectiveness of the proposed method in static aeroelasticity analysis.

static aeroelasticityminimum F-norm correction panel methodhigh-speed rotorcrafthorizontal tail

程云鹤、张威

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中国直升机设计研究所,江西景德镇 333001

静气弹 最小F-范数修正面元法 高速直升机 平尾

2024

飞行力学
中国飞行试验研究院

飞行力学

CSTPCD北大核心
影响因子:0.37
ISSN:1002-0853
年,卷(期):2024.42(1)
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