计算力学学报2012，Vol.29Issue(6)：835-840,6.
高速小展弦比机翼颤振的微分求积法分析
Flutter analysis of low-aspect-ratio wing by differential quadrature method
摘要
Abstract
This paper introduces the differential quadrature method to solve the aeroelastic problem of low-aspect-ratio wing. Low aspect ratio wing flutter partial differential equations are established based on the first order piston theory, and solved based on the frequency coincidence theory. The natural frequen- cy and flutter velocity are analyzed by DQM and FEM, the result shows that the relative errors between DQM and FEM are within 2 %. So the differential quadrature method is very effective to the solve flutter problems of low aspect ratio wings. Analysis of the effects of wing area, aspect ratio and thickness on flutter speed, the results showed that: flutter speed of the low-aspect-ratio wing greatly influenced by the structure size, with the wing flutter speed area, the aspect ratio of the decreases, with the wing thick- ness increases.关键词
微分求积法/气动弹性/小展弦比/机翼/颤振Key words
differential quadrature method aeroelastic low-aspect-ratio wing flutter分类
航空航天引用本文复制引用
钮耀斌,王中伟..高速小展弦比机翼颤振的微分求积法分析[J].计算力学学报,2012,29(6):835-840,6.基金项目
国防科技大学优秀研究生创新（B120107）资助项目. （）
