首页|期刊简介|投稿指南|分类索引|刊文选读|订阅指南|证明资料|样刊邮寄查询|常见问题解答|联系我们
赵立杰,田孟伟,李景奎. 一种水上电动飞机支撑结构分级优化方法[J]. 科学技术与工程, 2021, 21(4): 1660-1666.
zhaolijie,tianmengwei,lijingkui.Hierarchical optimization method for supporting structure of electric seaplane[J].Science Technology and Engineering,2021,21(4):1660-1666.
一种水上电动飞机支撑结构分级优化方法
Hierarchical optimization method for supporting structure of electric seaplane
投稿时间:2020-04-24  修订日期:2020-11-03
DOI:
中文关键词:  水上飞机  支撑结构  拓扑优化  多岛遗传算法  isight
英文关键词:hydroplane  support structure  topology optimization  multi-island genetic algorithm  isight
基金项目:辽宁省自然科学基金资助项目(20180551052)
        
作者单位
赵立杰 沈阳航空航天大学 辽宁省通用航空研究院
田孟伟 沈阳航空航天大学 辽宁省通用航空研究院
李景奎 沈阳航空航天大学 民用航空学院
摘要点击次数: 42
全文下载次数: 9
中文摘要:
      针对某水上电动飞机浮筒支撑杆稳定性和装备预留空间的问题,分别从拓扑,尺寸,形状三个方面进行分析,设计了一种轻量化且有良好气动外形的支撑结构。首先在已有飞机载荷与设计区域大小的情况下,基于拓扑优化方法对支撑架的包络空间进行迭代计算,得到最优传力路径,获取合理的节点位置和杆件连接方式。其次在ANSYS和Isight中采用多岛遗传算法对杆件截面尺寸参数进行联合优化,得到各个截面的最优尺寸,最终获得的结构形式既满足强度要求,且与原结构重量相比减轻了13.6%;最后通过“翼型”整流罩结构的使用减小杆件的阻力值,降低桁架结构对飞机气动性能的影响。新方案旨在为水上飞机支撑架设计提供一种新思路,也为相似的类桁架结构优化提供理论依据和技术支持。
英文摘要:
      Aiming at the problems of the stability of the pontoon support rod and the space reserved for equipment in a floating electric aircraft, the support structure is analyzed from the aspects of topology, size and shape, and a lightweight and better aerodynamic support structure is designed. First, given the existing aircraft load and the size of the design area, the envelope space of the support frame is iteratively calculated based on the topology optimization method to obtain the optimal force transmission path, and reasonable node positions and member connection methods. Secondly, in ANSYS and isight, the multi-island genetic algorithm is used to jointly optimize the section size parameters of the members to obtain the optimal size of each section. The final structural form meets the strength requirements and is 13.6% lighter than the original structure weight.; Finally, through the use of the "wing" section structure to reduce the resistance value of the members, reduce the impact of the truss structure on the aerodynamic performance of the aircraft. The new scheme aims to provide a new idea for the design of support structures for seaplanes, and also to provide theoretical basis and technical support for the optimization of similar truss-like structures.
查看全文  查看/发表评论  下载PDF阅读器
关闭
你是第35589184位访问者
版权所有:科学技术与工程编辑部
主管:中国科学技术协会    主办:中国技术经济学会
Tel:(010)62118920 E-mail:stae@vip.163.com
京ICP备05035734号-4
技术支持:本系统由北京勤云科技发展有限公司设计

京公网安备 11010802029091号