暴露于高压气气的密封件的机械和扩散性能和多目标优化
Yi Ma1,2, Xuhang Wu1, Xiaoling Deng3
1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou, China.
Science progress
|December 9, 2024
概括
O环密封件对于能能源安全至关重要. 这项研究揭示了高压如何影响密封性能,确定了提高基础设施可靠性的关键因素.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 化学工程是化学工程的重要组成部分.
背景情况:
- O环密封件对于高压气系统至关重要.
- 在高压气下密封的降解会影响能安全.
- 了解的扩散和机械性能对于基础设施至关重要.
研究的目的:
- 在高压气环境中研究密封的密封性能和气扩散行为.
- 分析膨胀压力和应力梯度对密封特性的影响.
- 优化密封设计,以提高高压气应用中的可靠性.
主要方法:
- 使用ABAQUS软件开发了一种连接扩散和机械性能的序列数值模型.
- 分析包括不同的膨胀压力 (5100 MPa) 和应力度梯度.
- 在参数评估和优化中使用了正交实验和综合频率分析.
主要成果:
- 高压气导致O环中的应力度和挤出.
- 气扩散主要是由度差异驱动的,其次是应力梯度.
- 增加的气压力降低了有效的密封率,增加了不均度和疲劳损伤风险.
结论:
- 提出了两个多目标优化方案,以提高挤出阻力和密封可靠性.
- 该研究为设计高压气应用的坚固密封件提供了洞察力.
- 优化的密封件对于确保能基础设施的安全和效率至关重要.
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