摘要
为实现舵面结构动力学性能提升及其轻量化,并实现骨架构型设计的快速高效,基于结构仿生拓扑优化设计的基本理论和方法,以舵面为研究对象,对蒙皮骨架舵面构型进行仿生拓扑优化设计研究。对优化前后舵面模型的计算结果表明,仿生拓扑优化可快速获得清晰的骨架构型,相比于初始舵面设计方案,优化所得骨架构型在使舵面结构一阶固有频率提升11%的同时,实现结构减重21.5%,验证了舵面骨架仿生拓扑优化设计的高效性。
The rudder structure has a significant influence on the dynamic performance of flying vehicles in hypersonic flight,and natural frequencies of the rudder structure is one of the most important evaluation indexes.Based on the basic theory and method of structural bionic topology optimization design,the bionic topology optimization design of rudder structure stiffened with stiffeners is studied.The results show that the bionic topology optimization can quickly obtain a clear skeleton layout.Compared with the initial rudder design scheme,the optimized skeleton layout can reduce the weight of the structure by 21.5%while increasing the first-order natural frequency of the rudder structure by 11%,which validates the efficiency of the bionic topology optimization design of the rudder skeleton design.
作者
郑昌隆
丁晓红
沈洪
赵利娟
ZHENG Changlong;DING Xiaohong;SHEN Hong;ZHAO Lijuan(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China;Shanghai Yuntian United Development Co.,Ltd.,Shanghai 201109,China)
出处
《空天防御》
2021年第2期7-12,共6页
Air & Space Defense
基金
上海航天先进技术联合研究基金(USCAST2019-1)。
关键词
舵面
拓扑优化
仿生设计
固有频率
有限元法
rudder
topology optimization
bionic design
natural frequency
finite element method
