ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Optimization-driven design method of landing gear structure
Received date: 2014-04-02
Revised date: 2014-07-16
Online 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)
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.
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 . DOI: 10.7527/S1000-6893.2014.0163
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