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    GB/T 36375-2018轨道交通一系橡胶弹簧疲劳试验方法Primary Rubber Spring Stiffness Fatigue Tester

    来源:www.jn-syj.com    发布于:2021/4/13 11:32:55    点击量:

    GB/T36375-2018轨道交通一系橡胶弹簧疲劳试验方法:将橡胶弹簧在23℃±2℃环境放置24h后测量垂向静刚度和压缩高,再进行评疲劳试验。以FZ3为平衡载荷,施加FZ3的30%为动态载荷,进行2x106次疲劳试验。橡胶弹簧疲劳试验目的是模拟弹簧运用中出现的动态变形和载荷,计算疲劳后弹簧垂向静态刚度和压缩高,橡胶弹簧疲劳试验后金属件不允许出现破坏,橡胶破坏面积不应超过正常粘结面积的10%,疲劳后垂向静态刚度变化率不超过疲劳前的20%,疲劳后相对于疲劳前的弹簧压缩高变化量符合GB/T36375-2018技术规范。

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