基于高度退化的波纹管剩余寿命评估方法

钟云龙; 黄永华; 吴栋; 丁榕; 颜镠钏

doi:10.7643/issn.1672-9242.2026.03.018

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装备环境工程 ›› 2026, Vol. 23 ›› Issue (3) : 170-175. DOI: 10.7643/issn.1672-9242.2026.03.018

专刊——装备服役环境与性能试验

基于高度退化的波纹管剩余寿命评估方法

钟云龙^1,2, 黄永华^1,2,*, 吴栋^1,2, 丁榕^1,2, 颜镠钏^1,2

作者信息 +

Method for Remaining Life Assessment of Highly Degraded Bellows

ZHONG Yunlong^1,2, HUANG Yonghua^1,2,*, WU Dong^1,2, DING Rong^1,2, YAN Liuchuan^1,2

Author information +

文章历史 +

摘要

目的针对航空压力调节设备中真空波纹管因长期承受温度与压力载荷导致的应力松弛失效问题。方法提出了一种基于自由高度退化的剩余寿命预测方法。通过设计专用试验装置模拟实际工况（温度为100~130 ℃、载荷为120 N）,以高度永久变形率≥3.4%作为失效判据,设置4组温度梯度（100、110、120、130 ℃）,每组3个样品,开展高度退化预测和加速寿命试验。结果获得10个不同时间点的自由高度退化数据,基于试验数据,结合阿伦尼斯模型建立了波纹管基于高度退化的性能退化速率与温度的模型,通过相关性检查验证了模型的准确性,并进一步推导出不同温度条件下的剩余寿命评估计算模型,根据失效判据可预测产品实际工况寿命。结论该研究弥补了波纹管日历寿命评估的工程空白,具备操作简易、成本低、可工程化推广的优势,为预测航空压力调节设备剩余寿命及预防外场故障提供了关键技术支撑。

Abstract

The work aims to address the stress relaxation failure problem of the vacuum bellows in the aviation pressure regulation equipment due to long-term exposure to temperature and pressure loads. A new method for predicting the remaining life based on the residual height degradation was proposed. By designing a dedicated test device to simulate the actual working conditions (temperature ranging from 100 to 130 ℃, load of 120 N), with a height permanent deformation rate of ≥3.4% as the failure criterion, four groups of temperature gradients (100 ℃, 110 ℃, 120 ℃, 130 ℃) were set up, with 3 samples in each group. Height degradation prediction and accelerated life tests were carried out to obtain free height degradation data at 10 different time points. Based on the test data, the relationship between the performance degradation rate and temperature was established with the Arrhenius model. The accuracy of the model was verified through correlation checks, and the remaining life assessment calculation model under different temperature conditions was further derived. According to the failure criterion, the actual working life of the product could be predicted. This remedies the engineering gap in the calendar life assessment of the bellows and has the advantages of simple operation, low cost, and engineering feasibility for promotion. It provides key technical support for predicting the remaining life of aviation pressure regulation equipment and preventing field failures.

导出引用

钟云龙, 黄永华, 吴栋, 丁榕, 颜镠钏. 基于高度退化的波纹管剩余寿命评估方法[J]. 装备环境工程. 2026, 23(3): 170-175 https://doi.org/10.7643/issn.1672-9242.2026.03.018

ZHONG Yunlong, HUANG Yonghua, WU Dong, DING Rong, YAN Liuchuan. Method for Remaining Life Assessment of Highly Degraded Bellows[J]. Equipment Environmental Engineering. 2026, 23(3): 170-175 https://doi.org/10.7643/issn.1672-9242.2026.03.018

中图分类号： TH17 TB114.3

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