Multibody system unsteady simulation technology for morphing aircraft

被引：0
|
作者：
Zhang H. [1 ]
Liu Q. [1 ]
Li L. [1 ]
Xu J. [1 ]
机构：
[1] Key Laboratory of Space Physics, Beijing
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2023年 / 44卷
关键词：
coupling calculation; morphing aircraft; multibody dynamics; separation; unsteady;
D O I：
10.7527/S1000-6893.2023.29421
中图分类号：
学科分类号：
摘要：
Morphing aircraft can adjust their shape to suit different flight environments and missions，which gives them significant advantages in terms of aerodynamics，control，and application scenarios. To design a feasible morphing aircraft separation/deformation mechanism，simulation tools are essential for identifying design risks and optimizing mechanism design. Aiming at the simulation requirements of various multibody system unsteady problems of morphing aircraft，a lightweight multibody dynamics open source simulation software MUSE was developed based on the Udwadia-Kalaba method. MUSE adopts an object-oriented programming method，which allows users to create corresponding rigid body objects and constraint objects according to the actual mechanical system without requiring users to understand the specific expressions of the multibody dynamics equations. A coupling calculation framework between MUSE and CFD solver was established in the present paper，which achieved the multibody system unsteady simulation of morphing aircraft separation/deformation process. The verification examples demonstrated that MUSE can accurately solve multibody dynamics problems，and the coupling calculation between MUSE and CFD can effectively overcome the multibody system unsteady simulation challenges faced by various morphing aircraft separation/deformation processes. © 2023 Chinese Society of Astronautics. All rights reserved.
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