高负荷下船舶柴油机滑动轴承位移检测方法研究
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摘要
现有船舶柴油机滑动轴承位移检测方法存在定位精准性较低、检测灵活性不达标等弊端。为解决上述问题,提出高负荷下的新型船舶柴油机滑动轴承位移检测方法。通过标准化自相关系数确定、位移量特征聚类2个步骤,完成高负荷柴油机滑动轴承位移检测准备。在此基础上,通过滑动检测时间窗口选择、位移频域特征提取、检测流程完善3个步骤,完成新型检测方法的搭建,实现高负荷下船舶柴油机滑动轴承位移检测方法研究。对比实验结果表明,与现有检测方法相比,应用新型船舶柴油机滑动轴承位移检测方法后,定位精准性、检测灵活性等指标均得到一定程度的提升。
The existing methods for measuring the displacement of marine diesel engine journal bearings have some disadvantages, such as low positioning accuracy, low detection flexibility and so on. In order to solve the above problems, a new displacement detection method for sliding bearings of marine diesel engine under high load is put forward. Through two steps of standardized autocorrelation coefficient determination and displacement feature clustering, the preparation of high load diesel engine sliding bearing displacement detection is completed. On this basis, through the sliding detection time window selection, displacement frequency domain feature extraction, detection process improvement three steps, complete the construction of the new detection method, realize the high load marine diesel engine sliding bearing displacement detection method research. The experimental results show that, compared with the existing detection methods, the positioning accuracy, detection flexibility and other indicators of the new marine diesel engine journal bearing displacement detection methods have been improved to a certain extent.
The existing methods for measuring the displacement of marine diesel engine journal bearings have some disadvantages, such as low positioning accuracy, low detection flexibility and so on. In order to solve the above problems, a new displacement detection method for sliding bearings of marine diesel engine under high load is put forward. Through two steps of standardized autocorrelation coefficient determination and displacement feature clustering, the preparation of high load diesel engine sliding bearing displacement detection is completed. On this basis, through the sliding detection time window selection, displacement frequency domain feature extraction, detection process improvement three steps, complete the construction of the new detection method, realize the high load marine diesel engine sliding bearing displacement detection method research. The experimental results show that, compared with the existing detection methods, the positioning accuracy, detection flexibility and other indicators of the new marine diesel engine journal bearing displacement detection methods have been improved to a certain extent.
引文
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