机械设计参数不确定性下PEMFC用气体扩散层（GDL）接触压力分布的研究

陈波; 李亚敏; 贾蒙; 杨治军

doi:doi:10.19912/j.0254-0096.tynxb.2024-1256

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机械设计参数不确定性下PEMFC用气体扩散层（GDL）接触压力分布的研究

更新时间：2025-12-10

- 机械设计参数不确定性下PEMFC用气体扩散层（GDL）接触压力分布的研究
- Issue 11, Pages: 144-153(2025)
- 作者机构：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1256
  CLC： P18
- Published Online：04 December 2025，
  
  Published：04 December 2025
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陈波, 李亚敏, 贾蒙, et al. 机械设计参数不确定性下PEMFC用气体扩散层（GDL）接触压力分布的研究[J]. 2025, (11): 144-153.
DOI：

陈波, 李亚敏, 贾蒙, et al. 机械设计参数不确定性下PEMFC用气体扩散层（GDL）接触压力分布的研究[J]. 2025, (11): 144-153. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1256.

摘要

为降低质子交换膜燃料电池（PEMFC）机械维护的强约束性

提升其性能、延长其各组件的使用寿命

该文从气体扩散层厚度、气体扩散层孔隙率、双极板弯曲半径3个确定参数的不确定性机械设计参数出发

基于高斯定律概率方法对机械不确定性参数对接触压力的影响进行评估。探讨了气体扩散层厚度、气体扩散层孔隙率、双极板弯曲半径3个宏观尺度与GDL接触压力这一微观尺度之间的关联;研究了机械设计参数的不确定性及其对接触压力的影响

并利用集成不确定性建模/仿真对GDL尺寸的可靠性进行实验验证。

Abstract

To reduce the stringent mechanical maintenance requirements of proton exchange membrane fuel cells （PEMFCs）

improve their performance

and extend the service life of their components

this paper examines uncertainties in three nominally deterministic mechanical design parameters： gas diffusion layer （GDL） thickness

GDL porosity

and bipolar plate bending radius. The study evaluates the influence of these uncertainties on contact pressure based on the Gaussian probability method. It explores the correlation between the macroscopic scales

including GDL thickness

GDL porosity

and bipolar plate bending radius

and the microscopic scale of GDL contact pressure. The study analyzes the uncertainties in mechanical design parameters and their effects on contact pressure and verifies the reliability of GDL dimension through integrated uncertainty modeling and simulation.

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references

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