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Reliability Analysis of Motor Spindle Bearing Based on Operating Condition

机译：基于工况的电主轴轴承可靠性分析

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摘要

In the general sense, the reliability index is calculated by mathematical statistics method, in which, a large number of failure datas must be obtained by accelerated life test, and the most important thing is that the index is a static index, not reflecting the real-time reliability. This method is not appropriate for high precision products. In this case, performance degradation data based on running characteristics can provide more valuable information about the reliability. Based on using failure datas to model and extracting the vibration signal features, a new method using proportional hazard models is proposed in this paper, which can link the low-level information(such as vibration feature )and high-level information(such as reliability index). Reliability model can be established by extracting vibration characteristics of Spindle.
机译：一般而言，可靠性指标是通过数理统计方法计算的，其中必须通过加速寿命试验获得大量的故障数据，最重要的是该指标是静态指标，不能反映真实情况。时间可靠性。此方法不适用于高精度产品。在这种情况下，基于运行特性的性能下降数据可以提供有关可靠性的更多有价值的信息。在利用故障数据进行建模和振动信号特征提取的基础上，提出了一种使用比例风险模型的新方法，该方法可以将振动信息等低层信息与可靠性（如可靠性）信息相链接。指数）。可以通过提取主轴的振动特性来建立可靠性模型。

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