Gear crack detection using modified TSA and proposed fault indicators for fluctuating speed conditions
Gear crack detection using modified TSA and proposed fault indicators for fluctuating speed conditions
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DOI：
10.1016/j.measurement.2016.04.076
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发表时间：
2016-08
期刊：
影响因子：
5.6
通讯作者：
Vikas Sharma;Anand Parey
中科院分区：
文献类型：
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作者：
Vikas Sharma;Anand Parey
齿轮箱故障的早期诊断对于避免灾难性故障的发生具有重要意义。状态指示器（CI）用于量化由缺陷齿轮产生的振动水平。各种CI的综合比较，即，RMS，峰度，波峰因数，FM 0，FM 4，M6 A，NB 4，能量比，NA 4，能量算子和两个新提出的条件指标（PS-I和PS-II），已被执行为无裂纹，初始裂纹和先进裂纹的不同的输入速度的波动轮廓。这种比较分析显示了指标对裂纹检测的响应性。有限的速度波动和瞬时高速波动被认为是。结果表明，新提出的条件指标是更强大的，稳定和有效的裂纹检测下波动的速度剖面。提出了一种改进的时间同步平均算法（MTSA），以提高信噪比（SNR）。
Fault diagnosis of gearbox at an early stage is very important to avoid catastrophic failures. Condition indicators (CI) are used to quantify the level of vibration generated by the defected gears. A comprehensive comparison of various CIs, i.e., RMS, kurtosis, crest factor, FM0, FM4, M6A, NB4, energy ratio, NA4, energy operator and two new proposed condition indicators (PS-I and PS-II), have been performed for no crack, initial crack and advanced crack for different fluctuating profiles of input speed. This comparative analysis shows the responsiveness of indicators towards crack detection. Limited speed fluctuations and instantaneous high speed fluctuations are considered. Results suggest that newly proposed condition indicators are more robust, stable and effective towards crack detection under fluctuating profiles of speed. A modified time synchronous averaging (MTSA) is also proposed to increase signal-to-noise ratio (SNR).