Ⅳ型70 MPa气瓶非测地线缠绕强度分析与爆破试验

doi:10.19936/j.cnki.2096-8000.20211128.015

复合材料科学与工程 ›› 2021, Vol. 0 ›› Issue (11): 94-101.DOI: 10.19936/j.cnki.2096-8000.20211128.015

Ⅳ型70 MPa气瓶非测地线缠绕强度分析与爆破试验

胡正云¹, 陈明和^1*, 潘勃²

1.南京航空航天大学机电学院,南京210016;
2.亚普汽车部件股份有限公司研究开发中心,扬州225001

收稿日期:2021-02-25 出版日期:2021-11-28 发布日期:2021-12-13
通讯作者: 陈明和(1962-),男,博士,教授,博士研究生导师,主要从事复合材料成型技术方面的研究,meemhchen@nuaa.edu.cn。
作者简介:胡正云(1988-),男,硕士,工程师,主要从事复合材料气瓶设计、仿真与工艺方面的研究。

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

HU Zheng-yun¹, CHEN Ming-he^1*, PAN Bo²

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

摘要/Abstract

摘要： 本文研究了Ⅳ型70 MPa气瓶的非测地线缠绕与爆破强度。首先,通过微分几何和龙格库塔法求解非测地线缠绕角度微分方程,将非测地线缠绕分为固定拐点和固定角度两种模式;然后,采用试验的手段对两种模式非测地线缠绕进行表征,得出稳定缠绕范围;最后,对比了测地线与非测地线两种工艺的预测爆破压力,并进行试验验证。结果表明,固定拐点的缠绕模式滑线系数可以达到0.35,而固定角度的缠绕模式滑线系数在[-0.1,0.1]范围之内。采用非测地线缠绕工艺,同时起到了增强封头和筒身的作用,提高了气瓶爆破压力。

关键词: 非测地线缠绕, 龙格库塔, 复合材料损伤, Hashin准则

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

中图分类号:

TB332

胡正云, 陈明和, 潘勃. Ⅳ型70 MPa气瓶非测地线缠绕强度分析与爆破试验[J]. 复合材料科学与工程, 2021, 0(11): 94-101.

HU Zheng-yun, CHEN Ming-he, PAN Bo. Non-geodesic winding strength analysis and burst test of type Ⅳ 70 MPa pressure vessel[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(11): 94-101.

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Ⅳ型70 MPa气瓶非测地线缠绕强度分析与爆破试验

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

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