SA349/2旋翼气动弹性稳定性的动力学多目标优化

王红州;孙壮;刘勇;张呈林

振动与冲击 ›› 2010, Vol. 29 ›› Issue (8) : 150-154.

PDF(1625 KB)
PDF(1625 KB)
振动与冲击 ›› 2010, Vol. 29 ›› Issue (8) : 150-154.
论文

SA349/2旋翼气动弹性稳定性的动力学多目标优化

  • 王红州1;孙壮2;刘勇1;张呈林1
作者信息 +

Multiple Objectives Dynamics Optimization of SA349/2 Rotor Blades for Aeroelastic Stability

  • WANG Hong –zhou1; SUN Zhuang2; LIU Yong1;ZHANG Cheng-lin1

Author information +
文章历史 +

摘要

基于有限元法建立了旋翼桨叶的气动弹性动力学分析模型,提出在气动弹性稳定性,频率分布及自转惯量等约束条件下的最小质量,最小应力多目标优化。文中使用链式规则的灵敏度计算方法进行目标函数及约束函数的灵敏度分析,使用近似模型的响应面模型及模拟退火算法对模型进行优化计算。最后通过对实例SA349/2旋翼桨叶进行优化对比,实现了在多约束条件都满足的情况下,自转惯量提高到原来的1.05倍,桨叶总质量减少6.0%~7.2%,应力比初始模型减少5.9%~7.1%的多目标优化结果,优化性能良好。

Abstract

The aeroelastic and dynamic analysis model of rotor blade was built based on the finite element approach (FEM). Multiple objectives optimization of a rotor blade was investigated to reduce the blade mass and the stress at blade root. Constraints on frequency placement, autorotational inertia, and aeroelastic stability of the blade were concerned. The sensitivity analysis of the objectives and constraints was conducted with the computation method based on chain rule. The optimization was carroed out satisfactorily by using the response surface model and simulated annealing algorithm. Taking the SA349-2 rotor blade as an optinization exaple, it is shown that the optimum solution results in a 1.05 times increase of autorotational inertia, a 6.0%~7.2% reduction of total mass of the rotor blade and a reduction in the peak-to-peak blade stress of 5.9%~7.1%,satisfying the constraint conditions of blade rotating frequencies , autorotational inertia ,aeroelastic stability and so on.

关键词

气动弹性稳定性 / 响应面模型 / 旋翼桨叶 / 灵敏度分析 / 模拟退火算法 / 多目标优化

Key words

aeroelastic stability / response surface model / rotor blade / sensitivity analysis / simulated annealing algorithm / multiple objective optimization

引用本文

导出引用
王红州;孙壮;刘勇;张呈林. SA349/2旋翼气动弹性稳定性的动力学多目标优化[J]. 振动与冲击, 2010, 29(8): 150-154
WANG Hong –zhou;SUN Zhuang;LIU Yong;ZHANG Cheng-lin. Multiple Objectives Dynamics Optimization of SA349/2 Rotor Blades for Aeroelastic Stability [J]. Journal of Vibration and Shock, 2010, 29(8): 150-154

PDF(1625 KB)

Accesses

Citation

Detail

段落导航
相关文章

/