A Comparative Experimental Study on the Use of Machine Learning Approaches for Automated Valve Monitoring Based on Acoustic Emission Parameters

[摘要] Acoustic emission (AE) analysis has become a vital tool for initiating the maintenance tasks in many industries. However, the analysis process and interpretation has been found to be highly dependent on the experts. Therefore, an automated monitoring method would be required to reduce the cost and time consumed in the interpretation of AE signal. This paper investigates the application of two of the most common machine learning approaches namely artificial neural network (ANN) and support vector machine (SVM) to automate the diagnosis of valve faults in reciprocating compressor based on AE signal parameters. Since the accuracy is an essential factor in any automated diagnostic system, this paper also provides a comparative study based on predictive performance of ANN and SVM. AE parameters data was acquired from single stage reciprocating air compressor with different operational and valve conditions. ANN and SVM diagnosis models were subsequently devised by combining AE parameters of different conditions. Results demonstrate that ANN and SVM models have the same results in term of prediction accuracy. However, SVM model is recommended to automate diagnose the valve condition in due to the ability of handling a high number of input features with low sampling data sets.

[发布机构] Institute of Noise and Vibration, Universiti Teknologi Malaysia, Kuala Lumpur; 54100, Malaysia^1;Energy and Renewable Energies Technology Centre, University of Technology, Baghdad, Iraq^2;Department of Refrigeration and Air-conditioning, Technical College of Mosul, Northern Technical University, Mosul, Iraq^3;School of Engineering, Bahrain Polytechnic, Isa Town; 33349, Bahrain^4

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Automated diagnostic systems;Automated monitoring;Comparative studies;Emission parameters;Faults diagnosis;Machine learning approaches;Prediction accuracy;Predictive performance