Journal of Shanghai Jiao Tong University ›› 2021, Vol. 55 ›› Issue (3): 311-319.doi: 10.16183/j.cnki.jsjtu.2019.351

Special Issue: 《上海交通大学学报》2021年“航空航天科学技术”专题 《上海交通大学学报》2021年12期专题汇总专辑

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Fluid-Structure Interaction Calculation Framework for Non-Rigid Airship Based on Explicit Dynamics

ZHANG Yu, WANG Xiaoliang()   

  1. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-12-04 Online:2021-03-01 Published:2021-04-02
  • Contact: WANG Xiaoliang


The non-rigid airship is a low-rigidity and inflatable aircraft which has obvious fluid-structure interaction characteristics. In this paper, the unsteady explicit dynamic fluid-structure interaction analysis framework of non-rigid airship is constructed based on the parametric section (PARSEC) method, the radial basis function (RBF), and the Delaunay mapping method. The reliability and accuracy of the numerical method are verified by the cases of plate impact and the aeroelasticity of NACA0014 wing. The calculation framework is also suitable for unsteady bidirectional fluid-structure interaction analysis of thin-envelope aerostats such as high-altitude balloon. Finally, the time domain and frequency domain responses of one non-rigid airship are simulated by the above framework. The research results show that there is an approximately linear relationship between the dominant frequency of vibration and the pressure difference of the airship.

Key words: non-rigid airship, fluid-structure interaction, radial basis function (RBF), Delaunay mapping, parametric section (PARSEC)

CLC Number: