Filament winding (FW) technique determines the production efficiency of wound products and the bearing capacity of composite layers, so the development and innovation of winding technique and equipment have become the focus of scientific researchers. This paper analyzes the influence of fiber crossing on the composite layers in the single filament winding (SFW) technique, proposes a multi-filament winding (MFW) technique. Firstly, the constitutive model of fiber cross region is constructed from mesoscopic scale, and the influence of this phenomenon on the design of composite layers is illustrated using netting theory. Then, the MFW technique is designed and developed, and the three-point bending test of CFRP is carried out with digital image correlation (DIC) technology, indicating that the MFW technique exhibits superior flexural strength of 483.71 MPa. Finally, a 35 MPa type III vessel is taken as the object for comparative numerical simulation, the results show the stress adopting the MFW technique in the dome section is reduced by 1418 MPa, and is smaller and more evenly distributed in the cylinder section. The MFW technique takes full advantage of the CFRP properties, improves the pressure bearing capacity of composite layers, meets the American DOT-CFFC standard requirements, and reduces the carbon fiber usage. The lightweight design of high-pressure hydrogen storage vessels is realized with a novel idea, and the winding efficiency is greatly improved compared with SFW technique.

纤维缠绕（FW）技术决定了缠绕产品的生产效率和复合层的承载能力，因此缠绕技术和设备的开发和创新成为科研人员关注的焦点。本文分析了单丝缠绕（SFW）技术中纤维交叉对复合层的影响，提出了多丝缠绕（MFW）技术。首先，从细观尺度构建纤维交叉区域的本构模型，并利用网络理论说明这种现象对复合层设计的影响。然后，设计和开发了MFW技术，并进行了CFRP的三点弯曲试验数字图像相关 (DIC) 技术，表明 MFW 技术具有 483.71 MPa 的优异抗弯强度。最后以某35 MPa III型容器为对象进行了对比数值模拟，结果表明采用MFW技术后的圆顶段应力降低了1418 MPa，在圆筒段应力更小且分布更均匀。MFW技术充分利用了CFRP的特性，提高了复合层的承压能力，满足美国DOT-CFFC标准要求，减少了碳纤维的用量。以新颖的思路实现了高压储氢容器的轻量化设计，与SFW技术相比，卷绕效率大大提高。