国家自然科学基金(91116005)

作品数:6被引量:31H指数:3
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相关作者:吴志刚聂少云杨超杨佑绪更多>>
相关机构:北京航空航天大学更多>>
相关期刊:《航空学报》《中国科学:技术科学》《Science China(Physics,Mechanics & Astronomy)》《Science China(Technological Sciences)》更多>>
相关主题:ANALYSISAERODYNAMICS活塞理论BASED_ONNON-PLANAR更多>>
相关领域:航空宇航科学技术理学建筑科学更多>>
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A high-efficiency aerothermoelastic analysis method被引量:2
《Science China(Physics,Mechanics & Astronomy)》2014年第6期1111-1118,共8页WAN ZhiQiang WANG YaoKun LIU YunZhen YANG Chao 
supported by the National Natural Science Foundation of China(Grant Nos.11172025 and 91116005)
In this paper,a high-efficiency aerothermoelastic analysis method based on unified hypersonic lifting surface theory is established.The method adopts a two-way coupling form that couples the structure,aerodynamic forc...
关键词:aerothermoelastic two-way coupling unified hypersonic lifting surface theory piston theory FLUTTER 
Aeroelastic two-level optimization for preliminary design of wing structures considering robust constraints被引量:5
《Chinese Journal of Aeronautics》2014年第2期259-265,共7页Wan Zhiqiang Zhang Bocheng Du Ziliang Yang Chao 
supported by the National Natural Science Foundation of China (No. 11172025 and No. 91116005)
An aeroelastic two-level optimization methodology for preliminary design of wing struc- tures is presented, in which the parameters for structural layout and sizes are taken as design vari- ables in the first-level op...
关键词:Aeroelasticity Preliminary design Robust optimization Structure optimization UNCERTAINTY 
Static aeroelastic analysis of very flexible wings based on non-planar vortex lattice method被引量:13
《Chinese Journal of Aeronautics》2013年第3期514-521,共8页Xie Changchuan Wang Libo Yang Chao Liu Yi 
National Natural Science Foundation of China(Nos.11172025,91116005);Research Fund for the Doctoral Program of Higher Education of China(No.20091102110015)
A rapid and efficient method for static aeroelastic analysis of a flexible slender wing when considering the structural geometric nonlinearity has been developed in this paper. A non-planar vortex lattice method herei...
关键词:Aeroelasticity Geometric nonlinearity Non-planar aerodynamics Static aeroelasticity Vortex lattice method 
小展弦比超声速机翼颤振的形状敏度解析分析被引量:1
《中国科学:技术科学》2012年第12期1423-1429,共7页杨超 杨佑绪 吴志刚 
国家自然科学基金(批准号:91116005;10902006)资助项目
颤振形状敏度指出颤振边界随机翼形状变化的移动情况.由于气动弹性系统质量、刚度和阻尼矩阵和形状设计变量的非线性函数关系,采用有限差分法计算颤振形状敏度耗费巨大,且准确性较低.本文提出一种颤振形状敏度的解析计算方法,考虑的变...
关键词:颤振 形状敏度 等效板模型 活塞理论 翼面设计 
Aeroelastic trim and flight loads analysis of flexible aircraft with large deformations被引量:10
《Science China(Technological Sciences)》2012年第10期2700-2711,共12页YANG Chao WANG LiBo XIE ChangChuan LIU Yi 
supported by the National Natural Science Foundation of China (Grant Nos. 11172025,91116005);the Research Fund for the Doctoral Program of Higher Education of China (Grant No.20091102110015)
A method for static aeroelastic trim analysis and flight loads computation of a flexible aircraft with large deformations has been presented in this paper,which considers the geometric nonlinearity of the structure an...
关键词:static aeroelasticity TRIM flight loads nonplanar aerodynamics geometric nonlinearity vortex lattice method 
考虑预应力和液体影响的圆柱壳颤振分析被引量:1
《航空学报》2012年第5期855-862,共8页聂少云 吴志刚 
国家自然科学基金(10902006,91116005)
为了研究预应力和液体对圆柱壳颤振的影响,采用杂交元方法,建立了圆柱壳的气动弹性方程。由Sanders薄壳理论和经典有限元理论,从壳的精确解推导节点位移函数入手,并由一阶活塞理论得到结构的气动阻尼矩阵和刚度矩阵,最终推导出考虑预应...
关键词:圆柱壳 气动弹性 有限元方法 活塞理论 预应力 内部液体 液体晃荡 
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