method for improving fault diagnosis accuracy of a gearbox

• Main Author: QIAO LIZHONG
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a method for improving fault diagnosis accuracy of a gearbox. The invention comprises the following steps: 1) acquiring the real-time parameter data of the gearbox, and verifying the reliability of the parameter data by using the historical data of the gearbox; 2) comparing that credibility of each parameter data with the set parameter confidence weight limit matrix, if thecredibility of the collected parameter data does not reach the corresponding confidence weight limit, judging that the corresponding parameter data is not credible and is not used as the input data of the fault diagnosis. The weighted selection of fault parameters is used to improve the efficiency and accuracy of fault diagnosis, thus creating a solid foundation for efficient fault diagnosis andrapid maintenance decision-making. 本发明公开了种提升齿轮箱故障诊断准确性的方法。本发明的步骤包括：1)获取齿轮箱实时的各参数数据，并利用齿轮箱历史数据来验证所述参数数据的可信度；2)将每所述参数数据的可信度与设置的参数置信权值限矩阵进行比对，若采集的所述参数数据的可信度没有达到对应的置信权值限，则判定对应的参数数据不可信，不作为故障诊断的输入数据。运用故障参数进行加权筛选，用来提升诊断效率和准确度，从而为实现高效