EEMD能量熵分析及在齿轮箱故障诊断中的应用Application of EEMD Energy Entropy Method to Fault Diagnosis of Gearbox

2012 ◽  
Vol 01 (04) ◽  
pp. 61-67 ◽  
Author(s):  
石 智云
Keyword(s):  
Fault Diagnosis ◽  
Entropy Method ◽  
Energy Entropy

scholarly journals A Roller Bearing Fault Diagnosis Method Based on LCD Energy Entropy and ACROA-SVM

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
HungLinh Ao ◽  
Junsheng Cheng ◽  
Kenli Li ◽  
Tung Khac Truong
Keyword(s):  
Support Vector Machine ◽  
Fault Diagnosis ◽  
Roller Bearing ◽  
Local Characteristic ◽  
Support Vector ◽  
Svm Classifier ◽  
Outer Race ◽  
Bearing Fault ◽  
Bearing Fault Diagnosis ◽  
Energy Entropy

This study investigates a novel method for roller bearing fault diagnosis based on local characteristic-scale decomposition (LCD) energy entropy, together with a support vector machine designed using an Artificial Chemical Reaction Optimisation Algorithm, referred to as an ACROA-SVM. First, the original acceleration vibration signals are decomposed into intrinsic scale components (ISCs). Second, the concept of LCD energy entropy is introduced. Third, the energy features extracted from a number of ISCs that contain the most dominant fault information serve as input vectors for the support vector machine classifier. Finally, the ACROA-SVM classifier is proposed to recognize the faulty roller bearing pattern. The analysis of roller bearing signals with inner-race and outer-race faults shows that the diagnostic approach based on the ACROA-SVM and using LCD to extract the energy levels of the various frequency bands as features can identify roller bearing fault patterns accurately and effectively. The proposed method is superior to approaches based on Empirical Mode Decomposition method and requires less time.

scholarly journals Assessment of energy system management - the case study of Kazakhstan

2019 ◽  
Vol 135 ◽  
pp. 04056 ◽  
Author(s):  
Galimkair Mutanov ◽  
Sayabek Ziyadin
Keyword(s):  
Energy Efficiency ◽  
Production Efficiency ◽  
Energy System ◽  
Environmental Safety ◽  
Entropy Method ◽  
System Management ◽  
Industrial Enterprises ◽  
Universal Principles ◽  
Energy Entropy

The article discusses the relevance of the problem of energy efficiency of industrial enterprises, along with increasing environmental safety of production and increasing social responsibility. The technique of estimation of production efficiency and its influence in management of ecological system on the basis of energy-entropy method is considered. Relevant questions are: improvement of the universal principles of energy efficiency in specific sectors and to develop tools of economic analysis energy infrastructure of industrial enterprises on the basis of the energy-entropy method using various ratios and find new ways of efficient use of energy. The purpose of this article is to develop new methods for assessing the efficiency of production and management. The problem is largely actualized by the fact that at present the question of assessing the effectiveness of energy systems management.

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