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 |  موضوع: كتاب Reliability Design of Mechanical Systems السبت 01 أغسطس 2020, 1:25 am | |
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أخوانى فى الله
أحضرت لكم كتاب
Reliability Design of Mechanical Systems
A Guide for Mechanical and Civil Engineers
Seongwoo Woo
و المحتوى كما يلي :
Contents
1 Introduction to Reliability Design of Mechanical/Civil System . 1
1.1 Introduction . 1
2 Reliability Disasters and Its Assessment Significance . 7
2.1 Introduction . 7
2.2 Reliability Disasters . 10
2.2.1 Versailles Rail Accident in 1842 12
2.2.2 Tacoma Narrows Bridge in 1940 . 13
2.2.3 De Havilland DH 106 Comet in 1953 14
2.2.4 G Company and M Company Rotary Compressor Recall
in 1981 . 15
2.2.5 Firestone and Ford Tire in 2000 17
2.2.6 Toshiba Satellite Notebook and Battery Overheating
Problem in 2007 18
2.2.7 Toyota Motor Recalls in 2009 . 19
2.3 Development of Reliability Methodologies in History . 20
2.3.1 In the Early of 20s Century - Starting
Reliability Studies . 20
2.3.2 In the World War II - New Electronics Failure
in Military . 24
2.3.3 In the End of World War II and 1950s - Starting
the Reliability Engineering 26
2.3.4 In the 1960s and Present: Mature of Reliability
Methodology - Physics of Failure (PoF) 30
References 34
3 Modern Definitions in Reliability Engineering 35
3.1 Introduction . 35
3.1.1 Bathtub Curve 36
3.2 Fundamentals in Probability Theory . 37
3.2.1 Probability . 38
3.2.2 Probability Distributions 40
ix3.3 Reliability Lifetime Metrics . 44
3.3.1 Mean Time to Failure (MTTF) . 44
3.3.2 Mean Time Between Failure (MTBF) 45
3.3.3 Mean Time to Repair (MTTR) . 46
3.3.4 BX% Life . 46
3.3.5 The Inadequacy of the MTTF (or MTBF)
and the Alternative Metric BX Life 47
3.4 Statistical Distributions . 49
3.4.1 Poisson Distributions . 49
3.4.2 Exponential Distributions . 51
3.5 Weibull Distributions and Its Applications 52
3.5.1 Introduction 52
3.5.2 Shape Parameters b 54
3.5.3 Confidence Interval 54
3.5.4 A Plotting Method on Weibull Probability Paper . 55
3.5.5 Probability Plotting for the Weibull Distribution 56
Reference 59
4 Failure Mechanics, Design, and Reliability Testing 61
4.1 Introduction . 61
4.2 Failure Mechanics and Designs 63
4.2.1 Product Design––Intended Functions 64
4.2.2 Specified Design Lifetime . 66
4.2.3 Dimensional Differences Between Quality Defects
and Failures 67
4.2.4 Classification of Failures 68
4.3 Failure Mode and Effect Analysis (FMEA) . 70
4.3.1 Introduction 70
4.3.2 Types of FMEA 72
4.3.3 System-Level FMEA . 72
4.3.4 Design-Level FMEA . 73
4.3.5 Process-Level FMEA 73
4.3.6 Steps for Performing FMEA . 74
4.4 Fault Tree Analysis (FTA) 79
4.4.1 Concept of FTA 79
4.4.2 Reliability Evaluation of Standard Configuration . 83
4.5 Robust Design (or Taguchi Methods) 85
4.5.1 A Specific Loss Function . 86
4.5.2 Robust Design Process . 89
4.5.3 Parameter (Measure) Design . 90
4.5.4 Tolerance Design . 90
4.5.5 A Parameter Diagram (P-Diagram) 91
4.5.6 Taguchi’s Design of Experiment (DOE) 91
4.5.7 Inefficiencies of Taguchi’s Designs 93
x Contents4.6 Reliability Testing 94
4.6.1 Introduction 94
4.6.2 Maximum Likelihood Estimation . 95
4.6.3 Time-to-Failure Models . 97
4.6.4 Reliability Testing . 100
5 Load Analysis 107
5.1 Introduction . 107
5.2 Modeling of Mechanical System . 108
5.2.1 Introduction 108
5.2.2 D’Alembert’s Modeling for Automobile 109
5.3 Bond Graph Modeling . 112
5.3.1 Introduction 112
5.3.2 Basic Elements, Energy Relations,
and Causality of Bond Graph 113
5.3.3 Case Study: Hydrostatic Transmission (HST)
in Seaborne Winch 118
5.3.4 Case Study: Failure Analysis and Redesign
of a Helix Upper Dispenser 124
5.4 Load Spectrum and Rain-Flow Counting . 127
5.4.1 Introduction 127
5.4.2 Rain-Flow Counting . 129
5.4.3 Goodman Relation 131
5.4.4 Palmgren-Miner’s Law for Cumulative Damage 132
References 137
6 Mechanical System Failures . 139
6.1 Introduction . 139
6.2 Mechanism of Slip 142
6.3 Facture Failure . 144
6.4 Fatigue Failure . 146
6.4.1 Introduction 146
6.4.2 Type of Fatigue Loading 147
6.4.3 Stress Concentration at Crack Tip . 150
6.4.4 Crack Propagation and Fracture Toughness 152
6.4.5 Crack Growth Rates . 153
6.4.6 Ductile–Brittle Transition Temperature (DBTT) 155
6.4.7 Fatigue Analysis 157
6.5 Stress–Strength Analysis 159
6.6 Failure Analysis 160
6.6.1 Introduction 160
6.6.2 Procedure of Failure Analysis 162
6.6.3 Case Study: PAS (Photo Angle Sensor)
in Automobile 164
6.6.4 Fracture Faces of Product Subjected
to a Variety of Loads in Fields . 167
References 169
Contents xi7 Parametric Accelerated Life Testing in Mechanical/Civil System . 171
7.1 Introduction . 171
7.2 Reliability Design in Mechanical System . 172
7.3 Reliability Block Diagram and Its Connection in Product 175
7.4 Reliability Allocation of Product . 176
7.4.1 Introduction 176
7.4.2 Reliability Allocation of the Product . 177
7.4.3 Product Breakdown 178
7.5 Failure Mechanics, Design, and Reliability Testing . 184
7.6 Parametric Accelerated Life Testing . 187
7.6.1 Acceleration Factor (AF) 188
7.6.2 Derivation of General Sample Size Equation 193
7.6.3 Derivation of Approximate Sample Size Equation 196
7.7 The Reliability Design of Mechanical System and Its
Verification 198
7.7.1 Introduction 198
7.7.2 Reliability Quantitative (RQ) Specifications . 200
7.7.3 Conceptual Framework of Specifications for Quality
Assurance . 204
7.8 Testing Equipment for Quality and Reliability . 206
7.8.1 Introduction 206
7.8.2 Procedure of Testing Equipment Development
(Example: Solenoid Valve Tester) . 209
References 218
8 Parametric ALT and Its Case Studies . 221
8.1 Failure Analysis and Redesign of Ice Maker 221
8.2 Residential Sized Refrigerators During Transportation . 229
8.3 Water Dispenser Lever in a Refrigerator 233
8.4 Refrigerator Compressor Subjected to Repetitive Loads 242
8.5 Hinge Kit System (HKS) in a Kimchi Refrigerator . 253
8.6 Refrigerator Drawer System . 263
8.7 Compressor Suction Reed Valve . 268
8.8 Failure Analysis and Redesign of the Evaporator Tubing . 279
8.9 Compressor with Redesigned Rotor and Stator . 288
8.10 French Refrigerator Drawer System . 296
9 Parametric ALT: A Powerful Tool for Future Engineering Development .
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