叶片参数化有限元建模与罩量优化设计

王振培; 王丹; 朱继宏; 张卫红

叶片参数化有限元建模与罩量优化设计

基金项目: 国家自然科学基金 (10925212); 高等学校博士学科点专项科研基金 (20106102110018); 高等学校学科创新引智计划 (B07050)

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出版历程
- 收稿日期: 2010-12-08
- 修回日期: 2011-04-08
- 刊出日期: 2011-11-28

Parametrical FE modeling of blade and design optimization of its gravity center eccentricity

摘要

摘要: 基于网格变形技术提出了一种叶片参数化有限元建模方法,该方法具有快速实现叶片参数化有限元建模的优点,同时能够在保证叶片有限元网格拓扑形式不变的前提下,有效解决叶片优化设计过程中的网格自动更新问题.在此基础上,结合叶片罩量优化设计的灵敏度分析技术,建立了叶片罩量自动优化一般设计流程,开展了叶片实例优化设计应用研究.优化结果表明,相对于初始设计,罩量优化设计可以有效地改善应力分布,降低叶片应力水平.
- 叶片 /
- 网格变形技术 /
- 参数化有限元建模 /
- 罩量 /
- 积叠线 /
- 形状优化 /
- 灵敏度分析
Abstract: A parametric discretization method for blade was proposed based on the FE (finite element) mesh morphing technique.This method has advantage of realizing automatic and rapid updating of the finite elements meshes without any change of the mesh topology.Moreover,a general procedure was established for the design optimization of the gravity center eccentricity of blade in combination with design sensitivity analysis.Numerical examples were solved successfully.Optimization results show that the stress level and distribution can be largely improved by means of the proposed design procedure.
- blade /
- mesh morphing technique /

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参考文献(15)

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