优化驱动的起落架结构设计方法

doi:10.7527/S1000-6893.2014.0163

固体力学与飞行器总体设计

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优化驱动的起落架结构设计方法

张明¹, 刘文斌², 李闯², 聂宏¹

1. 南京航空航天大学飞行器先进设计技术国防重点学科实验室, 南京 210016;
2. 上海飞机设计研究院, 上海 201210

收稿日期:2014-04-02 修回日期:2014-07-16 出版日期:2015-03-15 发布日期:2015-03-31
通讯作者: 张明男, 博士, 副教授。主要研究方向: 飞行器起落装置设计。Tel: 025-84892384 E-mail: zhm6196@nuaa.edu.cn E-mail:zhm6196@nuaa.edu.cn
作者简介:刘文斌男, 硕士, 工程师。主要研究方向: 起落架结构优化设计与分析。E-mail: 87622938@qq.com;李闯男, 硕士, 工程师。主要研究方向: 起落架系统设计与分析。E-mail: 834758784@qq.com聂宏男,博士, 教授, 博士生导师。主要研究方向: 飞行器起落装置设计。E-mail: hnie@nuaa.edu.cn
基金资助:
国家自然科学基金 (51305198); 高等学校博士学科点专项科研基金(20123218120003)

Optimization-driven design method of landing gear structure

ZHANG Ming¹, LIU Wenbin², LI Chuang², NIE Hong¹

1. Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Shanghai Aircraft Design and Research Institute, Shanghai 201210, China

Received:2014-04-02 Revised:2014-07-16 Online:2015-03-15 Published:2015-03-31
Supported by:
National Natural Science Foundation of China (51305198); Specialized Research Fund for the Doctoral Program of Higher Education of China (20123218120003)

摘要/Abstract

摘要：

起落架结构是飞机上最复杂最重要的结构之一,传统的设计方法依靠人工经验反复迭代,没有充分利用结构优化技术,具有设计周期长且不能最大限度得到最优设计的缺点。根据结构优化技术的发展,提出了优化驱动的起落架结构设计方法,实现了优化驱动的设计方法在起落架领域的完整工程应用。结构优化技术作为整个设计流程的驱动者,在其中发挥贯穿全程的主体作用,根据不同设计阶段的需求,先后运用拓扑优化、尺寸优化和形状优化技术。以某型飞机前起落架外筒的设计为例可以发现,相比传统设计方法,新方法在相同的设计约束条件下,能更快得到设计方案,结构质量减少了24.1%,实现了起落架结构的快速设计和轻量化设计。

关键词: 起落架设计, 结构设计, 优化驱动, 拓扑优化, 尺寸优化, 形状优化

Abstract:

Landing gear structure is one of the most complex and important structures in aircraft. The traditional method for aircraft landing gear design is an iterative process relied on the experience of human, which does not take advantage of the important structural optimization technology, so the design cycles still seem long and the outcome is seldom the best. In this paper, optimization-driven design method of landing gear structural is proposed based on the development history of structural design process. This is the first application of the optimization-driven method in landing gear structural design. As a driver, optimization technology plays a main role throughout the entire design process. Topology optimization, size optimization and shape optimization are applied to the method according to different demands. Taking a certain type of landing gear cylinder design for example, both the current method and optimization-driven method are used for comparison. The results show that the new method reduces the weight of the strut cylinder by 24.1%, improves the efficiency and performance of the landing gear structural design and also achieves a rapid and lightweight design.

Key words: landing gear design, structural design, optimization-driven, topology optimization, size optimization, shape optimization

中图分类号:

V226

张明, 刘文斌, 李闯, 聂宏. 优化驱动的起落架结构设计方法[J]. 航空学报, 2015, 36(3): 857-864.

ZHANG Ming, LIU Wenbin, LI Chuang, NIE Hong. Optimization-driven design method of landing gear structure[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(3): 857-864.

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E-mail：hkxb@buaa.edu.cn

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优化驱动的起落架结构设计方法

Optimization-driven design method of landing gear structure

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