文章摘要
大展弦比机翼的非线性气动弹性缩比优化
Nonlinear Aeroelastic Scaling Optimization of High Aspect Ratio Wings
投稿时间:2018-12-11  
DOI:10.16018/j.cnki.cn32-1650/n.201902003
中文关键词: 大展弦比  缩比  几何非线性  等效静态载荷法
英文关键词: high aspect ratio  scaling  geometric nonlinearity  equivalent static load method
基金项目:
作者单位
刘振东 南京航空航天大学 机械结构力学及控制国家重点实验室, 江苏 南京 210016 
韩景龙 南京航空航天大学 机械结构力学及控制国家重点实验室, 江苏 南京 210016 
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中文摘要:
      针对几何非线性效应明显的大展弦比机翼,使用两种传统线性缩比方法(刚度和质量耦合下直接进行模态匹配与解耦刚度和质量后进行模态响应匹配的方法)与非线性的缩比方法对某大展弦比机翼进行了仿真计算与比较分析,得出传统的线性缩比方法得到的缩比模型与设计目标相差较大,非线性缩比方法误差较小,即非线性缩比方法更加适用于存在明显几何非线性效应的大展弦比机翼的结论。
英文摘要:
      For high aspect ratio wings with significant geometric nonlinear effects, two traditional linear scaling methods(one for direct modal matching under stiffness and mass coupling, and another one for modal response matching under stiffness and mass decoupling)and a nonlinear scaling method are used to simulate and compare the analysis of a large aspect ratio wing. The results show that the scaled model designed by the traditional linear scaling method has a large difference from the design goal, and the difference of the nonlinear scaling method is smaller, that is, the nonlinear scaling method is more suitable for high aspect ratio wings with significant geometric nonlinear effects.
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