机械科学与技术2024，Vol.43Issue(6)：1072-1077,6.DOI:10.13433/j.cnki.1003-8728.20230018
结合加速时温数据和加权外推的橡胶老化寿命预测
Rubber Aging Life Prediction Combining Accelerated Time-temperature Data and Weighted Extrapolation
摘要
Abstract
Aiming at the reasonable bottleneck of accelerated data extrapolation,based on high temperature accelerated test data,a weighted extrapolation method is proposed to achieve accurate prediction of rubber life.Firstly,the nonlinear accelerated degradation model for rubber properties is established,and the nonlinear least squares method is used to realize the identification of acceleration factors at different temperatures.Secondly,the weighted calculation of the activation energy is conducted.Finally,the life at the service temperature is calculated from the activation energy,and the validity of the method is verified by modeling the existing data.The research can provide support for improving the accuracy of accelerated life prediction of rubber parts,and can also provide reference for evaluating the reliability of other mechanical parts.关键词
橡胶/老化寿命/时温叠加/加速退化/加权外推Key words
rubber/aging life/time-temperature superposition/accelerated degradation/weighted extrapolation分类
通用工业技术引用本文复制引用
吕向飞,任琪,张博,邓钦文..结合加速时温数据和加权外推的橡胶老化寿命预测[J].机械科学与技术,2024,43(6):1072-1077,6.基金项目
重庆市教委科研项目(KJQN202203302) （KJQN202203302）
