基于外部气动力和片条法的静气动弹性方法研究

更新时间:2023-06-21 02:44:03 阅读: 评论:0

英语在线翻译有道
第41卷第6期力学与实践2019年12月
基于外部气动力和片条法的静气动弹性方法研究
刘晓晨U
南通全屋定制(上海飞机设计研宄院,上海2〇m o)
摘要本文通过对载荷设计中的静气动弹性分析方法进行研究,发展了一种基于外部刚性气动力数 据和改良片条理论修正的弹性载荷修正方法。其中结构变形通过工程梁方法提取部件刚度阵进行计算,
气动力通过网格化模型基于外部试验或CFD气动力数据库插值得到。结构和气动之间位移和力的数据
传递分别利用曲面样条和形函数面积坐标加权法插值,弹性载荷修正通过改良后的片条理论计算,由此found的用法
卡梅伦辞职迭代循环直至结构变形收敛。同时通过对相关工程实例进行分析计算并与成熟方法对比,验证了该方法
reading是什么意思的可行性和高效性。
关键词气动弹性,结构变形,弹性修正,工程梁,片条理论
中图分类号:V215.1 文献标识码:A doi: 10.6052/1000-0879-19-227
膨胀螺栓 英文
STATIC AEROELASTICITY METHOD BASED ON EXTERNAL
AERODYNAMIC FORCE AND STRIP METHOD
LIU Xiaochen1)
(Shanghai Aircraft Design and Rearch Institute, Shanghai 201210, China)fight
Abstract The static aeroelastic analysis method is applied in the load design in this paper, and an elastic load correction method bad on the external rigid aerodynamic force and the modified strip method is developed. The deformation of the structure is calculated by the engineering beam method, the stiffness matrix of different components is obtained, and the aerodynamic force is obtained from the external test or the CFD aerodynamic databa interpolation by meshing the model. The data transfer for the displacement and the force between the structure and the aerodynamics field is performed by using the surface spline function method and the shape function area coordinate weighting method, respectively, the elastic load is computed from the deflection of the aerodynamic mesh, that is, the improved strip. On this basis, the computation is iteratively looped until the displacement of the structural model converges. At the same time, the feasibility and the efficiency of the method are verified by analyzing some engineering examples and comparing wit
elon musk
h the well matured methods.
Key words aeroelasticity, structural deformation, elastic correction, engineering beam, strip theory
2019-06-18收到第1稿,2019-08-01收到修改稿。
china top1)刘晓晨,工程师,主要研宄方向为飞行载荷和气动弹性。E-mail:
basketball是什么意思引用格式:刘晓晨.基于外部气动力和片条法的静气动弹性方法研究.力学与实践,2019, 41(6): 665-670
Liu Xiaochen. Static aeroelzisticity method bad on external aerodynamic force and strip method. Mechanics in Engi­neering^2019, 41(6): 665-670

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标签:结构   方法   气动弹性   载荷   变形   进行
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