Dynamic response characteristics and damage modes of multifunctional layered hydrogen storage vessels under impact loads

Yao, Jingxin; Chen, Xinhui; Lu, Hancheng; Xu, Zilong; Zhang, Ziqiang; Liu, Baoqing

doi:10.1016/j.ijhydene.2023.08.057

Cited by 1 publication

(1 citation statement)

References 37 publications

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“…In addition, the mass of the boss can be reduced as much as possible to meet the design requirements. On the one hand, the boss can reduce the overall quality of the Type IV hydrogen storage vessel, increase the hydrogen storage density, and improve the mileage; on the other hand, it can reduce the inertia of the Type IV hydrogen storage vessel, reduce the impact force during collision, and improve the safety of the Type IV hydrogen storage vessel [9][10][11][12][13]. Therefore, under the background of the continuous development of hydrogen energy technology, the research on the sealing and lightweight design of the boss will provide a solid guarantee for the sustainable development and promotion of fuel cell vehicles.…”

Section: Introductionmentioning

confidence: 99%

Lightweight Type-IV Hydrogen Storage Vessel Boss Based on Optimal Sealing Structure

Shao,

Wang,

et al. 2024

WEVJ

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The seal and weight of the Type IV hydrogen storage vessel are the key problems restricting the safety and driving range of fuel cell vehicles. The boss, as a metal medium connecting the inner liner of the Type IV hydrogen storage vessel with the external pipeline, affects the sealing performance of the Type IV hydrogen storage vessel, and there is no academic research on the weight of the boss. Therefore, according to the force characteristics of the boss, this paper divides the upper and lower areas (valve column and plate). The valve column with seal optimization and light weight is manufactured with a 3D printing additive, while the plate bearing and transferring the internal pressure load is manufactured by forging. Firstly, a two-dimensional axisymmetric simulation model of the sealing ring was established, and the effects of different compression rates on its seal performance were analyzed. Then, the size and position of the sealing groove were sampled, simulated, and optimized based on the Latin Hypercube method, and the reliability of the optimal seal structure was verified by experiments. Finally, the Solid Isotropic Material with Penalization (SIMP) topology method was used to optimize the weight of the boss with optimal sealing structure, and the reconstructed model was checked and analyzed. The results show that the weight of the optimized boss is reduced by 9.6%.

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