Towards Condition – Based Maintenance of Contact Wire in PT MRT Jakarta

다국어 초록 (Multilingual Abstract)

This study investigated the wear behavior of contact wires in the electrification system of MRT Jakarta phase 1 operations, especially in underground stations.

목차 (Table of Contents)

• TABLE OF CONTENTS
• INTRODUCTION 1
• 1.1 Background 1
• 1.2 Problem Statement 4
• 1.3 Purpose of the Study 5
• 1.4 Research Questions 6
• 1.5 Significance of the Study 6
• 1.6 Delimitations of the Study 7
• 1.7 Assumptions 7
• 1.8 Organization of the Study/Thesis 8
• LITERATURE REVIEW 9
• 2.1 Design of Catenary System and Construction of Catenary System 10
• 2.2 Operation and Maintenance of Catenary System Especially Contact Wire (Preventive and Predictive) 15
• 2.3 Construction of Extended Line and Renewal of Railway Line 19
• 2.4 Contact wire wear 20
• 2.5 Previous Studies on Contact Wire Wear Prediction 23
• 2.6 Modeling Software 25
• 2.7 Condition modeling 26
• 2.8 Summary of literature review 28
• METHODOLOGY 30
• 3.1 General Technical Specification 30
• 3.1.1 Contact Wire 30
• 3.1.2 Deviation of Contact Wire at RISS Underground Section 31
• 3.1.3 Anchoring at RISS Underground Section 32
• 3.1.4 Height of Contact Wire 33
• 3.1.5 Gradient of Contact Wire 33
• 3.1.6 Standard Tension of Contact Wire 34
• 3.1.7 RISS Support Interval 34
• 3.1.8 Contact Force Pantograph 34
• 3.1.9 Current Capacity 35
• 3.1.10 Height Range of Pantograph 37
• 3.1.11 Comparison of Contact Strip Materials 38
• 3.1.12 Comparison of Pantograph Types 39
• 3.1.13 Rolling Stock Gauge 40
• 3.1.14 Current Capacity Contact Wire 41
• 3.1.15 Train Set Voltage Configuration 41
• 3.1.16 Train Set Speed Configuration 42
• 3.2 Data Measurement and Description 42
• 3.2.1 Contact Wire Measurement Data 43
• 3.2.2 Replacement Date of Contact Wire 44
• 3.2.3 Double Contact Wire Implementation 45
• 3.2.4 Train Speed Data 47
• 3.2.5 Section of Contact Wire Data 47
• 3.3 Data Collection and Preprocessing 50
• 3.4 Research Methodology 51
• 3.5 Analysis Method 58
• 3.5.1 Cleaning and Set Data Frame 59
• 3.5.2 Wear Rate Calculation 59
• 3.5.3 Data Correlation 60
• 3.5.4 Wear Rate Estimation and Usage Days Modeling 60
• 3.5.5 Lifetime Prediction 62
• 3.5.6 Evaluation of Model Prediction 62
• 3.6 Summary of Research of Methodology 63
• RESULTS AND DISCUSSION 64
• 4.1 Overview of the Dataset 64
• 4.2 Wear Rate Calculation 67
• 4.3 Data Correlation 71
• 4.4 Model Training of Contact Wire Prediction Model 76
• 4.4.1 Exponential Model of Wear Rate 76
• 4.4.2 Model Training Random Forest Regressor Wear Rate 77
• 4.4.3 Assessment Model Performance of Random Forest Regressor 79
• 4.4.4 Calculated Usage Days Using Predicted Wear Rate and Looping Method 79
• 4.4.5 Lifetime Prediction of Contact Wire 81
• 4.4.6 Evaluation of Model Prediction 83
• 4.5 Interpretation and Discussion 85
• 4.5.1 Interpretation 85
• 4.5.2 Discussion 86
• 4.6 Summary of Findings 89
• Conclusion and Recommendation 91
• 5.1 Conclusion 91
• 5.2 Recommendation 92