| 轨道车辆空调实心密封框的压缩试验及分析 |
| Compression Test and Analysis of Solid Sealing Frame for Rail Vehicle Air Conditioner |
| 投稿时间：2022-10-24 修订日期：2022-10-24 |
| DOI：10.12136/j.issn.1000-890X.2024.04.0299 |
| 中文关键词: 轨道车辆空调 密封框 三元乙丙橡胶 压缩试验 |
| 英文关键词: rail vehicle air conditioner sealing frame EPDM compression test |
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| 中文摘要: |
| 对轨道车辆空调实心密封框（简称密封框，采用三元乙丙橡胶作主体材料）进行了压缩试验与分析。结果表明：密封框的压缩率超过50%会发生不可恢复形变，在实际使用过程中需要控制密封框的压缩率，避免过度压缩导致密封框的损坏；25%压缩率下密封框的压缩力与中心线总长度近似呈线性关系；通过任意尺寸、任意压缩量（压缩率小于30%）下压缩力计算公式可提前对密封框的压缩力进行理论计算，有效避免空调装车不合格的问题。 |
| 英文摘要: |
| The compression test and analysis were conducted on the solid sealing frame（referred to as the sealing frame，using EPDM as the main material） of rail vehicle air conditioner.The results showed that if the compression rate of the sealing frame exceeded 50%，irreversible deformation would occur.In actual use，it was necessary to control the compression ratio of the sealing frame to avoid damage of the sealing frame caused by excessive compression.Under 25% compression rate，the compression force of the sealing frame was approximately linearly related to the centerline total length.By using the compression force calculation formula at any size and compression amount（compression ratio less than 30%），the theoretical calculation of the compression force of the sealing frame could be carried out in advance，effectively avoiding the problem of unqualified air conditioning installation. |
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