COMPOSITES SCIENCE AND ENGINEERING ›› 2021, Vol. 0 ›› Issue (11): 94-101.DOI: 10.19936/j.cnki.2096-8000.20211128.015

• APPLICATION RESEARCH • Previous Articles     Next Articles

Non-geodesic winding strength analysis and burst test of type Ⅳ 70 MPa pressure vessel

HU Zheng-yun1, CHEN Ming-he1*, PAN Bo2   

  1. 1. School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
    2. Research and Development Center, YAPP Automotive Systems Co., Ltd., Yangzhou 225001, China
  • Received:2021-02-25 Online:2021-11-28 Published:2021-12-13

Abstract: The non-geodesic winding and bursting strength of type Ⅳ 70 MPa gas cylinder were studied in this paper. Firstly, the non-geodesic winding angle differential equation was solved by differential geometry and Runge-Kutta method, and the non-geodesic winding was divided into two modes: fixed inflection point and fixed angle. Then the experimental method was used to characterize the non-geodesic winding of the two modes, and the stable winding range was obtained. Finally, the predicted blasting pressure of geodesic and non-geodesic processes is compared and verified by experiments. The results show that the sliding-line coefficient of the winding mode with fixed inflection point can reach 0.35, while the sliding-line coefficient of the winding mode with fixed angle is within the range of [-0.1,0.1]. The non-geodesic winding technology can enhance the head and cylinder body and increase the cylinder bursting pressure.

Key words: non-geodesic winding, Runge-Kutta, composite material damage, Hashin guidelines

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