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On the use of jerk and snap in condition monitoring of machinery - review and case studies

机译：关于使用混蛋和施用机械的条件监测 - 审查与案例研究

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The time derivatives of acceleration offer a great advantage in detecting impact-causing faults at an early stage in condition monitoring applications. Defective rolling bearings and gears are common faults that cause impacts.This article is based on extensive real-world measurements, through which large-scale machines have been studied.Numerous laboratory experiments provide additional insight into the matter. A practical solution for detecting faults with as few features as possible is to measure the root mean sguare (RMS) velocity according to the standards in the frequency range from 10 Hzto 1000 Hz and the peak value of the second time derivative of acceleration, iesnap. Measuring snap produces good results even when the upper cut-off frequency is as low as 2 kHz or slightly higher. This is valuable information when planning the mounting of accelerometers.
机译：加速的时间衍生物在调查应用中的早期阶段检测造成影响的故障提供了很大的优势。 有缺陷的滚动轴承和齿轮是导致影响的常见故障。本文基于广泛的实际测量，通过了大规模机器已经研究过。诺尔实验室实验提供了额外的洞察力。 用于检测尽可能少的特征的故障的实际解决方案是根据频率范围内的标准测量从10 Hzto 1000 Hz的标准和加速度的第二次衍生的标准来测量根部平均sgeary（RMS）速度。 测量扫描即使上截止频率低至2 kHz或略高，也会产生良好的结果。 规划加速度计的安装时，这是有价值的信息。

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