机构地区: 南京航空航天大学能源与动力学院
出 处: 《固体力学学报》 2011年第6期595-602,共8页
摘 要: 将材料细观结构优化和宏观结构优化结合起来,从结构与材料两个尺度出发,发展复合材料导向叶片的结构与材料一体化优化设计方法.在建立平纹编织复合材料细观结构分析模型的基础上,采用细观力学有限元法进行材料刚度性能预测,热-固耦合分析方法进行涡轮导向叶片结构分析.同时以细观结构参数和宏观结构参数为设计变量,以叶片质量最小为优化目标,并要求满足应力和位移方面的约束,进行编织复合材料导向叶片的结构与材料一体化优化设计. By combining composite microstructure optimization with structure optimization, an integrated optimization design of structure and material of composite guide vane was developed. With the microstructure analysis model of plain weave braided composite, micromechanical finite element method was used to predict mechanical property, thermosetting coupling method was used to analyze turbine guide vane. During integrated optimization of structure and material procedure, design variables include microstructure parameter and macrostructure parameter,and the objective was mass of vane,also required to satisfy stress and displacement constraints.