EBOOK - Troubleshooting rotating machinery (Robert X. Perez & Andrew P. Conkey)

EBOOK - Xử lý sự cố các máy móc có thiết bị quay (Robert X. Perez & Andrew P. Conkey) - 357 Trang.

Troubleshooting is part science and part art. Simple troubleshooting tables or decision trees are rarely effective in solving complex, real-world machine problems. For this reason, the authors wanted to offer a novel way to attack machinery issues that can adversely affect the reliability and effi ciency of your plant processes.

The methodology presented in this book is not a rigid “cookbook” approach but rather a flexible and dynamic process aimed at exploring process plant machines holistically in order to understand and narrow down the true nature of the problem.

Throughout this book, the term process machinerywill be used to refer to rotating machinery commonly encountered in processing plants, such as centrifugal pumps and compressors,  reciprocating pumps and compressors, fans, steam turbines, and electric motors.

CONTENTS:

1  Troubleshooting for Fun and Profit  1
1.1 Why Troubleshoot?  10
1.2  Traits of a Successful Troubleshooter  13
2  An Insight in Design: Machines and
Th eir Components Serve a Function  19
2.1  An Overview of the Design Process  30
2.2  Complex Machine Element Environments  34
3  Machinery Design Issues and Failure Modes  37
3.1  Common Failure Modes  44
3.1.1 Pluggage  45
3.1.2 Erosive Wear  45
3.1.3 Fatigue  46
3.1.4  Compressor Blade Fatigue Example  47
3.1.5 Bearing Failure  49
3.1.6 Rubbing  50
3.1.7  Unique Failure Modes  50
4  Machinery in Process Services – Th  e Big Picture  53
5  Causes Versus Symptoms  61
5.1 Causal Chains  66
5.2 Summary  71
6  Approach Field Troubleshooting Like a
Reputable News Reporter  73
7 Th  e “What” Questions  77
7.1  What is the Problem or What Are the Symptoms?  78
7.2  What Is Your Assessment of the Problem?  80
7.3  What Is at Stake?  85
7.4  What Risk Is at Hand?  86
7.5  What Additional Information Is Required?  87
8  Who Knows the Most About the Problem?  91
9  When Do the Symptoms Show Up?  97
 9.1  “When” Questions to Ask  100
 9.2  Ways to Display Time Related Data  101
9.3  Timelines  102
9.4  Trend Plots  106
 9.5  Constant Amplitude Trends  110
9.6  Step Changes  110
 9.7  Gradual Versus Rapidly Changing Trends  111
9.8  Correlations  113
9.9  Speed-Related Issues  114
9.10 Erratic Amplitude  117
10  Where Do the Symptoms Show Up?  121
10.1  Locating a Machine-Train Problem  122
10.2  Troubleshooting Problems Involving
Multiple Machine-Trains  128
10.3  Multiple Versus Single Machine Train Examples  130
10.4  Analyzing Noises, Pings, and Knocks  132
10.5  Seeing the Light at the End of the Tunnel  135
11  Why Is the Problem Occurring?  137
11.1  Fitting the Pieces Together  139
11.2  Reciprocating Compressor Example  142
11.3 Troubleshooting Matrices  143
11.4  Assessing Machine with Multiple Symptoms  144
12  Analyze, Test, Act, and Confirm (Repeat as Needed)  147
12.1 Th  e Iterative Path to the Final Solution  150
13 Real-World Examples  155
13.1  Case Study #1  155
13.1.1  Closing Comments  158
13.2  Case Study #2  158
13.2.1  Closing Comments  163
13.3  Case Study #3  163
13.3.1  Closing Comments  170
13.4  Case Study #4  170
13.5  Case Study #5  174
13.5.1  Closing Comments  179
14 The “Hourglass” Approach to Troubleshooting  181
14.1 Th  inking and Acting Globally  186
15 Vibration Analysis  187
15.1  Vibration Analysis Primer  188
15.2  Identifying Machine Vibration Characteristics  201
16  Applying the 5Qs to Rotordynamic Investigations  207
16.1 Introduction  208
 16.1.1  Rotordynamics: A Brief Overview  208
16.2  Using Rotordynamic Results for Troubleshooting  213
16.3 Closing  222
17  Managing Critical Machinery Vibration Data  227
17.1  Vibration Analysis Strategies  230
18 Closing Remarks  235
18.1 Practice the Method  235
18.2  Provide Training on Fault Trees and Cause Mapping  236
18.3  Employ Team Approach for Complex Problems  236
18.4  Get Management’s Support  237

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EBOOK - Xử lý sự cố các máy móc có thiết bị quay (Robert X. Perez & Andrew P. Conkey) - 357 Trang.

Troubleshooting is part science and part art. Simple troubleshooting tables or decision trees are rarely effective in solving complex, real-world machine problems. For this reason, the authors wanted to offer a novel way to attack machinery issues that can adversely affect the reliability and effi ciency of your plant processes.

The methodology presented in this book is not a rigid “cookbook” approach but rather a flexible and dynamic process aimed at exploring process plant machines holistically in order to understand and narrow down the true nature of the problem.

Throughout this book, the term process machinerywill be used to refer to rotating machinery commonly encountered in processing plants, such as centrifugal pumps and compressors,  reciprocating pumps and compressors, fans, steam turbines, and electric motors.

CONTENTS:

1  Troubleshooting for Fun and Profit  1
1.1 Why Troubleshoot?  10
1.2  Traits of a Successful Troubleshooter  13
2  An Insight in Design: Machines and
Th eir Components Serve a Function  19
2.1  An Overview of the Design Process  30
2.2  Complex Machine Element Environments  34
3  Machinery Design Issues and Failure Modes  37
3.1  Common Failure Modes  44
3.1.1 Pluggage  45
3.1.2 Erosive Wear  45
3.1.3 Fatigue  46
3.1.4  Compressor Blade Fatigue Example  47
3.1.5 Bearing Failure  49
3.1.6 Rubbing  50
3.1.7  Unique Failure Modes  50
4  Machinery in Process Services – Th  e Big Picture  53
5  Causes Versus Symptoms  61
5.1 Causal Chains  66
5.2 Summary  71
6  Approach Field Troubleshooting Like a
Reputable News Reporter  73
7 Th  e “What” Questions  77
7.1  What is the Problem or What Are the Symptoms?  78
7.2  What Is Your Assessment of the Problem?  80
7.3  What Is at Stake?  85
7.4  What Risk Is at Hand?  86
7.5  What Additional Information Is Required?  87
8  Who Knows the Most About the Problem?  91
9  When Do the Symptoms Show Up?  97
 9.1  “When” Questions to Ask  100
 9.2  Ways to Display Time Related Data  101
9.3  Timelines  102
9.4  Trend Plots  106
 9.5  Constant Amplitude Trends  110
9.6  Step Changes  110
 9.7  Gradual Versus Rapidly Changing Trends  111
9.8  Correlations  113
9.9  Speed-Related Issues  114
9.10 Erratic Amplitude  117
10  Where Do the Symptoms Show Up?  121
10.1  Locating a Machine-Train Problem  122
10.2  Troubleshooting Problems Involving
Multiple Machine-Trains  128
10.3  Multiple Versus Single Machine Train Examples  130
10.4  Analyzing Noises, Pings, and Knocks  132
10.5  Seeing the Light at the End of the Tunnel  135
11  Why Is the Problem Occurring?  137
11.1  Fitting the Pieces Together  139
11.2  Reciprocating Compressor Example  142
11.3 Troubleshooting Matrices  143
11.4  Assessing Machine with Multiple Symptoms  144
12  Analyze, Test, Act, and Confirm (Repeat as Needed)  147
12.1 Th  e Iterative Path to the Final Solution  150
13 Real-World Examples  155
13.1  Case Study #1  155
13.1.1  Closing Comments  158
13.2  Case Study #2  158
13.2.1  Closing Comments  163
13.3  Case Study #3  163
13.3.1  Closing Comments  170
13.4  Case Study #4  170
13.5  Case Study #5  174
13.5.1  Closing Comments  179
14 The “Hourglass” Approach to Troubleshooting  181
14.1 Th  inking and Acting Globally  186
15 Vibration Analysis  187
15.1  Vibration Analysis Primer  188
15.2  Identifying Machine Vibration Characteristics  201
16  Applying the 5Qs to Rotordynamic Investigations  207
16.1 Introduction  208
 16.1.1  Rotordynamics: A Brief Overview  208
16.2  Using Rotordynamic Results for Troubleshooting  213
16.3 Closing  222
17  Managing Critical Machinery Vibration Data  227
17.1  Vibration Analysis Strategies  230
18 Closing Remarks  235
18.1 Practice the Method  235
18.2  Provide Training on Fault Trees and Cause Mapping  236
18.3  Employ Team Approach for Complex Problems  236
18.4  Get Management’s Support  237

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Chuyên mục: C. Bài giảng C. Bài giảng chuyên ngành Cơ khí - Chế tạo máy (Mechanical & Manufacturing Engineering) C. Bài giảng kỹ thuật