摘要
计算了复合材料机翼的翼尖挠度和静气动弹性稳定性导数随海拔高度、速压及马赫数的变化。经研究发现:静稳定性导数随马赫数和速压的增大而减小,但其随马赫数的变化比较缓慢,而随速压的变化比较显著;翼尖挠度随海拔高度的升高逐渐变小,随马赫数的增加虽略有增长但比较小,随配平攻角的增加增长速度变化迅速。
The changes of different trends respectively of the deflections and the static stability derivatives are calculated at the variety of attitude,dynamic pressure and Mach number.By comparison and analysis,the following results can be found：static stability derivatives are reduced as the increase of Mach number or dynamic pressure;and reduce is rapidly with the change of dynamic pressure,but slower with the change of Mach number.The deflections at the wing tip are changed with different trends at the single variable such as attitude,Mach number,and angel.The decreases of deflections are as the increases of attitude;the deflections are also increase as the increases mach number,but are more slowly;the increase of angel leads to the increase of the deflection.
出处
《机械设计与制造》
北大核心
2011年第2期186-188,共3页
Machinery Design & Manufacture
基金
国家自然科学基金资助项目(50775183)
博士点基金资助项目(N6CJ0001)
关键词
复合材料
静气动弹性
静稳定性导数
挠度
Composite material
Static aeroelastic
Static stability derivatives
Deflection
