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Umfang: 1 Online-Ressource

ISBN: 9783030721923

Serie: Springer aerospace technology

Weitere Ausg.: Erscheint auch als Druck-Ausgabe ISBN 978-3-030-72191-6

Sprache: Englisch

Fachgebiete: Technik , Physik

Schlagwort(e): Structural Health Monitoring ; Schadenfrüherkennung ; Luftfahrttechnik

DOI: 10.1007/978-3-030-72192-3

URL: Volltext  (kostenfrei)

URL: Volltext  (kostenfrei)

Mehr zum Autor: Sause, Markus 1982-

UID:

Umfang: 1 Online-Ressource (284 p.)

ISBN: 9783030721923

Serie: Springer Aerospace Technology

Inhalt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation

Anmerkung: English

Sprache: Englisch

URL: kostenfrei

UID:

Umfang: 1 online resource (292 pages)

ISBN: 9783030721923

Serie: Springer Aerospace Technology Ser.

Anmerkung: Intro -- Preface -- Acknowledgment -- Contents -- Contributors -- Chapter 1: Introduction -- Chapter 2: Monitoring Tasks in Aerospace -- 2.1 Condition Monitoring -- 2.2 Operation Monitoring (OM) -- 2.3 Damage Monitoring (DM) -- 2.4 Challenges -- References -- Chapter 3: Defect Types -- 3.1 Metallic Materials -- 3.1.1 Defects During the Manufacturing Process -- 3.1.2 Defects During In-service Conditions -- 3.1.2.1 Fatigue -- 3.1.2.2 Corrosion -- 3.1.2.3 Creep -- 3.1.2.4 Operational Overload -- 3.1.2.5 Wear -- 3.1.2.6 Extreme Weather Conditions -- 3.1.2.7 Miscellaneous Defect Types in Metals -- 3.2 Composite Materials -- 3.2.1 Disbonds -- 3.2.2 Delamination -- 3.2.3 Foreign Inclusion -- 3.2.4 Matrix Cracking -- 3.2.5 Porosity -- 3.2.6 Fibre Breakage -- 3.2.7 Other Composite Laminate Typical Defects -- 3.2.8 Typical Honeycomb Core Defects -- 3.2.9 Typical Foam Core Defects -- 3.2.10 Ingress of Moisture and Temperature -- 3.2.11 Fatigue -- 3.3 Defects in Coatings -- 3.3.1 Defects During the Manufacturing Process -- 3.3.2 Defects During In-service Conditions -- 3.4 Defects in Joints -- 3.4.1 Adhesively Bonded Joints -- 3.4.2 Friction Stir-Welded Joints -- 3.5 Concluding Remarks -- References -- Chapter 4: Aerospace Requirements -- 4.1 Power Consumption -- 4.2 System Reliability/Durability -- 4.3 Effect of Operational Conditions -- 4.4 Size/Weight Restrictions -- 4.5 Optimal Sensor Placement -- 4.6 Summary -- References -- Chapter 5: Ultrasonic Methods -- 5.1 Introduction to Ultrasonic Inspection -- 5.2 Ultrasonic Guided Wave (GW) Inspection -- 5.2.1 Governing Equations of GW Wave Propagation -- 5.2.1.1 Waves in Unbounded Media -- 5.2.1.2 Boundary Conditions -- 5.2.1.3 Dispersion Relation -- 5.2.2 Active and Passive Guided Wave Inspection -- 5.2.3 Dispersion and Attenuation -- 5.2.4 Guided Wave Excitation and Mode Selection -- 5.3 Defect Detection. , 5.3.1 Defect Localisation and Imaging: Sparse, Phased Arrays and Guided Wave Tomography -- 5.3.2 Guided Wave Interaction with Actual Structural Defect -- 5.4 Reliability of SHM Systems -- 5.4.1 Basic Concepts of POD and PFA -- 5.4.2 Sources of Variability of SHM System -- 5.4.3 Analysis of Environmental and Operational Conditions -- 5.4.4 POD Assessment Solutions -- 5.4.5 Model-Assisted POD for SHM System -- 5.5 Guided Wave Applications to SHM of Aerospace Components -- 5.6 Summary -- References -- Chapter 6: Vibration Response-Based Damage Detection -- 6.1 Introduction -- 6.2 The Rationale of Vibration-Based Methods -- 6.3 Environmental and Operational Influences -- 6.4 Modal-Based Methods and Damage Features -- 6.4.1 Natural Frequencies -- 6.4.2 Mode Shapes -- 6.4.3 Modal Slope -- 6.4.4 Modal Curvature -- 6.4.5 Strain Energy -- 6.4.6 Damping -- 6.4.7 Interpolation Error -- 6.5 Time Series Methods -- 6.5.1 Autoregressive Parameters -- 6.5.2 Intrinsic Mode Function and Hilbert Spectrum -- 6.5.3 Signal Components -- 6.5.4 Damage Indices Based on Extracted Features -- 6.5.5 Singular Spectrum Analysis (SSA) -- 6.5.6 First-Order Eigen Perturbation (FOEP) Technique -- 6.6 Time-Frequency Methods -- 6.6.1 Scalogram and Spectrogram -- 6.7 Drawbacks and Limitations -- 6.8 Case Studies -- 6.8.1 Vibration-Based Damage Detection in a Composite Plate by Means of Acceleration Responses -- 6.8.2 Numerical Comparison of Modal-Based Methods for Damage Detection -- 6.8.3 Vibration-Based Monitoring of a Scaled Wind Turbine Blade by Means of Acceleration and Strain Responses -- 6.9 Conclusions -- References -- Chapter 7: Acoustic Emission -- 7.1 Introduction -- 7.2 Basic Experimental Details and Parameters -- 7.3 Fracture Mode Characterization in Plate Structures -- 7.3.1 AE Source Types -- 7.3.2 Procedures for AE Source Identification -- 7.4 Localization. , 7.5 Influence of Propagation -- 7.6 Different Sensor Types -- 7.7 Dedicated Aeronautics Applications and Examples -- 7.8 General Considerations -- References -- Chapter 8: Strain Monitoring -- 8.1 Strain Gauges -- 8.2 Optical Fiber Sensors -- 8.2.1 Introduction -- 8.2.2 Types of Optical Fiber Sensors -- 8.2.3 Interferometry -- 8.2.4 Mach-Zehnder -- 8.2.5 Michelson Interferometer -- 8.2.6 Sagnac Interferometer -- 8.2.7 Fabry-Pérot -- 8.2.8 Fiber Bragg Grating Sensors -- 8.2.9 Other FBG Grating Structures -- 8.2.10 State-of-the Art Damage Detection Systems -- 8.2.11 Acoustic Emission Interrogator (OptimAE) -- 8.2.12 OFS Applications in Aeronautics -- 8.3 Strain-Based SHM -- References -- Chapter 9: Data Reduction Strategies -- 9.1 Introduction -- 9.2 Signal Processing -- 9.3 Data Reduction Strategies -- 9.3.1 Sampling Rates of Different SHM Methods -- 9.3.1.1 Ultrasonics -- 9.3.1.2 Vibration-Based Methods -- 9.3.1.3 Acoustic Emission -- 9.3.1.4 Strain Monitoring -- 9.3.2 Established Approaches for Data Reduction -- 9.3.3 Open Challenges for Data Reduction in SHM Systems -- 9.3.3.1 Ultrasonic Systems -- 9.3.3.2 Reliability Issues Related to Loss of Information Via Data Reduction -- 9.4 Wireless Sensing Considerations -- 9.4.1 Network Topologies -- 9.4.2 Data Rates -- 9.4.3 Synchronization -- 9.4.4 Power Management and Consumption -- 9.4.5 Future Developments in Energy Harvesting and Power Management -- 9.5 Data Management -- 9.5.1 Reliability -- 9.5.2 Liability Issues -- 9.5.3 Ground-Based Systems -- 9.6 Conclusions -- References -- Chapter 10: Conclusions -- 10.1 Overview of the SHM Methods for Aerospace Integration -- 10.1.1 Ultrasonic Guided Wave Based Monitoring -- 10.1.2 Vibration-Based Monitoring -- 10.1.3 Acoustic Emission Monitoring -- 10.1.4 Strain-Based Monitoring -- 10.2 Defect Detectability. , 10.3 Advantages and Disadvantages of SHM Techniques -- 10.4 Roadmap for SHM Integration in Future Aircraft -- 10.5 Future Research Directions -- Correction to: Structural Health Monitoring Damage Detection Systems for Aerospace.

Weitere Ausg.: Print version: Sause, Markus G. R. Structural Health Monitoring Damage Detection Systems for Aerospace Cham : Springer International Publishing AG,c2021 ISBN 9783030721916

Sprache: Englisch

Schlagwort(e): Electronic books.

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Umfang: 1 online resource : , illustrations (chiefly color)

ISBN: 9783030721923 , 3030721922

Serie: Springer aerospace technology,

Inhalt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students.

Anmerkung: Chapter 1. Introduction -- Chapter 2. Monitoring tasks in aerospace -- Chapter 3. Defect types -- Chapter 4. Aerospace requirements -- Chapter 5. Ultrasonics -- Chapter 6. Vibration based monitoring -- Chapter 7. Acoustic emission -- Chapter 8. Strain monitoring -- Chapter 9. Data reduction -- Chapter 10. Conclusions.

Weitere Ausg.: Print version: Structural health monitoring damage detection systems for aerospace. Cham : Springer, [2021] 3030721914

Weitere Ausg.: 9783030721916

Sprache: Englisch

Schlagwort(e): Electronic books. ; Electronic books.

DOI: 10.1007/978-3-030-72192-3

URL: SpringerLink

URL: Click here to view book

UID:

Umfang: 1 online resource (292 p.)

ISBN: 3-030-72192-2

Serie: Springer Aerospace Technology

Inhalt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.

Anmerkung: Description based upon print version of record. , Intro -- Preface -- Acknowledgment -- Contents -- Contributors -- Chapter 1: Introduction -- Chapter 2: Monitoring Tasks in Aerospace -- 2.1 Condition Monitoring -- 2.2 Operation Monitoring (OM) -- 2.3 Damage Monitoring (DM) -- 2.4 Challenges -- References -- Chapter 3: Defect Types -- 3.1 Metallic Materials -- 3.1.1 Defects During the Manufacturing Process -- 3.1.2 Defects During In-service Conditions -- 3.1.2.1 Fatigue -- 3.1.2.2 Corrosion -- 3.1.2.3 Creep -- 3.1.2.4 Operational Overload -- 3.1.2.5 Wear -- 3.1.2.6 Extreme Weather Conditions -- 3.1.2.7 Miscellaneous Defect Types in Metals , 3.2 Composite Materials -- 3.2.1 Disbonds -- 3.2.2 Delamination -- 3.2.3 Foreign Inclusion -- 3.2.4 Matrix Cracking -- 3.2.5 Porosity -- 3.2.6 Fibre Breakage -- 3.2.7 Other Composite Laminate Typical Defects -- 3.2.8 Typical Honeycomb Core Defects -- 3.2.9 Typical Foam Core Defects -- 3.2.10 Ingress of Moisture and Temperature -- 3.2.11 Fatigue -- 3.3 Defects in Coatings -- 3.3.1 Defects During the Manufacturing Process -- 3.3.2 Defects During In-service Conditions -- 3.4 Defects in Joints -- 3.4.1 Adhesively Bonded Joints -- 3.4.2 Friction Stir-Welded Joints -- 3.5 Concluding Remarks , References -- Chapter 4: Aerospace Requirements -- 4.1 Power Consumption -- 4.2 System Reliability/Durability -- 4.3 Effect of Operational Conditions -- 4.4 Size/Weight Restrictions -- 4.5 Optimal Sensor Placement -- 4.6 Summary -- References -- Chapter 5: Ultrasonic Methods -- 5.1 Introduction to Ultrasonic Inspection -- 5.2 Ultrasonic Guided Wave (GW) Inspection -- 5.2.1 Governing Equations of GW Wave Propagation -- 5.2.1.1 Waves in Unbounded Media -- 5.2.1.2 Boundary Conditions -- 5.2.1.3 Dispersion Relation -- 5.2.2 Active and Passive Guided Wave Inspection -- 5.2.3 Dispersion and Attenuation , 5.2.4 Guided Wave Excitation and Mode Selection -- 5.3 Defect Detection -- 5.3.1 Defect Localisation and Imaging: Sparse, Phased Arrays and Guided Wave Tomography -- 5.3.2 Guided Wave Interaction with Actual Structural Defect -- 5.4 Reliability of SHM Systems -- 5.4.1 Basic Concepts of POD and PFA -- 5.4.2 Sources of Variability of SHM System -- 5.4.3 Analysis of Environmental and Operational Conditions -- 5.4.4 POD Assessment Solutions -- 5.4.5 Model-Assisted POD for SHM System -- 5.5 Guided Wave Applications to SHM of Aerospace Components -- 5.6 Summary -- References , Chapter 6: Vibration Response-Based Damage Detection -- 6.1 Introduction -- 6.2 The Rationale of Vibration-Based Methods -- 6.3 Environmental and Operational Influences -- 6.4 Modal-Based Methods and Damage Features -- 6.4.1 Natural Frequencies -- 6.4.2 Mode Shapes -- 6.4.3 Modal Slope -- 6.4.4 Modal Curvature -- 6.4.5 Strain Energy -- 6.4.6 Damping -- 6.4.7 Interpolation Error -- 6.5 Time Series Methods -- 6.5.1 Autoregressive Parameters -- 6.5.2 Intrinsic Mode Function and Hilbert Spectrum -- 6.5.3 Signal Components -- 6.5.4 Damage Indices Based on Extracted Features , 6.5.5 Singular Spectrum Analysis (SSA) , English

Weitere Ausg.: ISBN 3-030-72191-4

Sprache: Englisch

UID:

Umfang: 1 online resource (292 p.)

ISBN: 3-030-72192-2

Serie: Springer Aerospace Technology

Inhalt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.

Anmerkung: Description based upon print version of record. , Intro -- Preface -- Acknowledgment -- Contents -- Contributors -- Chapter 1: Introduction -- Chapter 2: Monitoring Tasks in Aerospace -- 2.1 Condition Monitoring -- 2.2 Operation Monitoring (OM) -- 2.3 Damage Monitoring (DM) -- 2.4 Challenges -- References -- Chapter 3: Defect Types -- 3.1 Metallic Materials -- 3.1.1 Defects During the Manufacturing Process -- 3.1.2 Defects During In-service Conditions -- 3.1.2.1 Fatigue -- 3.1.2.2 Corrosion -- 3.1.2.3 Creep -- 3.1.2.4 Operational Overload -- 3.1.2.5 Wear -- 3.1.2.6 Extreme Weather Conditions -- 3.1.2.7 Miscellaneous Defect Types in Metals , 3.2 Composite Materials -- 3.2.1 Disbonds -- 3.2.2 Delamination -- 3.2.3 Foreign Inclusion -- 3.2.4 Matrix Cracking -- 3.2.5 Porosity -- 3.2.6 Fibre Breakage -- 3.2.7 Other Composite Laminate Typical Defects -- 3.2.8 Typical Honeycomb Core Defects -- 3.2.9 Typical Foam Core Defects -- 3.2.10 Ingress of Moisture and Temperature -- 3.2.11 Fatigue -- 3.3 Defects in Coatings -- 3.3.1 Defects During the Manufacturing Process -- 3.3.2 Defects During In-service Conditions -- 3.4 Defects in Joints -- 3.4.1 Adhesively Bonded Joints -- 3.4.2 Friction Stir-Welded Joints -- 3.5 Concluding Remarks , References -- Chapter 4: Aerospace Requirements -- 4.1 Power Consumption -- 4.2 System Reliability/Durability -- 4.3 Effect of Operational Conditions -- 4.4 Size/Weight Restrictions -- 4.5 Optimal Sensor Placement -- 4.6 Summary -- References -- Chapter 5: Ultrasonic Methods -- 5.1 Introduction to Ultrasonic Inspection -- 5.2 Ultrasonic Guided Wave (GW) Inspection -- 5.2.1 Governing Equations of GW Wave Propagation -- 5.2.1.1 Waves in Unbounded Media -- 5.2.1.2 Boundary Conditions -- 5.2.1.3 Dispersion Relation -- 5.2.2 Active and Passive Guided Wave Inspection -- 5.2.3 Dispersion and Attenuation , 5.2.4 Guided Wave Excitation and Mode Selection -- 5.3 Defect Detection -- 5.3.1 Defect Localisation and Imaging: Sparse, Phased Arrays and Guided Wave Tomography -- 5.3.2 Guided Wave Interaction with Actual Structural Defect -- 5.4 Reliability of SHM Systems -- 5.4.1 Basic Concepts of POD and PFA -- 5.4.2 Sources of Variability of SHM System -- 5.4.3 Analysis of Environmental and Operational Conditions -- 5.4.4 POD Assessment Solutions -- 5.4.5 Model-Assisted POD for SHM System -- 5.5 Guided Wave Applications to SHM of Aerospace Components -- 5.6 Summary -- References , Chapter 6: Vibration Response-Based Damage Detection -- 6.1 Introduction -- 6.2 The Rationale of Vibration-Based Methods -- 6.3 Environmental and Operational Influences -- 6.4 Modal-Based Methods and Damage Features -- 6.4.1 Natural Frequencies -- 6.4.2 Mode Shapes -- 6.4.3 Modal Slope -- 6.4.4 Modal Curvature -- 6.4.5 Strain Energy -- 6.4.6 Damping -- 6.4.7 Interpolation Error -- 6.5 Time Series Methods -- 6.5.1 Autoregressive Parameters -- 6.5.2 Intrinsic Mode Function and Hilbert Spectrum -- 6.5.3 Signal Components -- 6.5.4 Damage Indices Based on Extracted Features , 6.5.5 Singular Spectrum Analysis (SSA) , English

Weitere Ausg.: ISBN 3-030-72191-4

Sprache: Englisch

UID:

Umfang: 1 online resource (292 p.)

ISBN: 3-030-72192-2

Serie: Springer Aerospace Technology

Inhalt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students. This article/publication is based upon work from COST Action CA18203 (ODIN - http://odin-cost.com/), supported by COST (European Cooperation in Science and Technology). COST (European Cooperation in Science and Technology) is a funding agency for research and innovation networks. Our Actions help connect research initiatives across Europe and enable scientists to grow their ideas by sharing them with their peers. This boosts their research, career and innovation.

Anmerkung: Description based upon print version of record. , Intro -- Preface -- Acknowledgment -- Contents -- Contributors -- Chapter 1: Introduction -- Chapter 2: Monitoring Tasks in Aerospace -- 2.1 Condition Monitoring -- 2.2 Operation Monitoring (OM) -- 2.3 Damage Monitoring (DM) -- 2.4 Challenges -- References -- Chapter 3: Defect Types -- 3.1 Metallic Materials -- 3.1.1 Defects During the Manufacturing Process -- 3.1.2 Defects During In-service Conditions -- 3.1.2.1 Fatigue -- 3.1.2.2 Corrosion -- 3.1.2.3 Creep -- 3.1.2.4 Operational Overload -- 3.1.2.5 Wear -- 3.1.2.6 Extreme Weather Conditions -- 3.1.2.7 Miscellaneous Defect Types in Metals , 3.2 Composite Materials -- 3.2.1 Disbonds -- 3.2.2 Delamination -- 3.2.3 Foreign Inclusion -- 3.2.4 Matrix Cracking -- 3.2.5 Porosity -- 3.2.6 Fibre Breakage -- 3.2.7 Other Composite Laminate Typical Defects -- 3.2.8 Typical Honeycomb Core Defects -- 3.2.9 Typical Foam Core Defects -- 3.2.10 Ingress of Moisture and Temperature -- 3.2.11 Fatigue -- 3.3 Defects in Coatings -- 3.3.1 Defects During the Manufacturing Process -- 3.3.2 Defects During In-service Conditions -- 3.4 Defects in Joints -- 3.4.1 Adhesively Bonded Joints -- 3.4.2 Friction Stir-Welded Joints -- 3.5 Concluding Remarks , References -- Chapter 4: Aerospace Requirements -- 4.1 Power Consumption -- 4.2 System Reliability/Durability -- 4.3 Effect of Operational Conditions -- 4.4 Size/Weight Restrictions -- 4.5 Optimal Sensor Placement -- 4.6 Summary -- References -- Chapter 5: Ultrasonic Methods -- 5.1 Introduction to Ultrasonic Inspection -- 5.2 Ultrasonic Guided Wave (GW) Inspection -- 5.2.1 Governing Equations of GW Wave Propagation -- 5.2.1.1 Waves in Unbounded Media -- 5.2.1.2 Boundary Conditions -- 5.2.1.3 Dispersion Relation -- 5.2.2 Active and Passive Guided Wave Inspection -- 5.2.3 Dispersion and Attenuation , 5.2.4 Guided Wave Excitation and Mode Selection -- 5.3 Defect Detection -- 5.3.1 Defect Localisation and Imaging: Sparse, Phased Arrays and Guided Wave Tomography -- 5.3.2 Guided Wave Interaction with Actual Structural Defect -- 5.4 Reliability of SHM Systems -- 5.4.1 Basic Concepts of POD and PFA -- 5.4.2 Sources of Variability of SHM System -- 5.4.3 Analysis of Environmental and Operational Conditions -- 5.4.4 POD Assessment Solutions -- 5.4.5 Model-Assisted POD for SHM System -- 5.5 Guided Wave Applications to SHM of Aerospace Components -- 5.6 Summary -- References , Chapter 6: Vibration Response-Based Damage Detection -- 6.1 Introduction -- 6.2 The Rationale of Vibration-Based Methods -- 6.3 Environmental and Operational Influences -- 6.4 Modal-Based Methods and Damage Features -- 6.4.1 Natural Frequencies -- 6.4.2 Mode Shapes -- 6.4.3 Modal Slope -- 6.4.4 Modal Curvature -- 6.4.5 Strain Energy -- 6.4.6 Damping -- 6.4.7 Interpolation Error -- 6.5 Time Series Methods -- 6.5.1 Autoregressive Parameters -- 6.5.2 Intrinsic Mode Function and Hilbert Spectrum -- 6.5.3 Signal Components -- 6.5.4 Damage Indices Based on Extracted Features , 6.5.5 Singular Spectrum Analysis (SSA) , English

Weitere Ausg.: ISBN 3-030-72191-4

Sprache: Englisch

UID:

Umfang: XII, 284 p. 126 illus., 100 illus. in color. , online resource.

Ausgabe: 1st ed. 2021.

ISBN: 9783030721923

Serie: Springer Aerospace Technology,

Inhalt: This open access book presents established methods of structural health monitoring (SHM) and discusses their technological merit in the current aerospace environment. While the aerospace industry aims for weight reduction to improve fuel efficiency, reduce environmental impact, and to decrease maintenance time and operating costs, aircraft structures are often designed and built heavier than required in order to accommodate unpredictable failure. A way to overcome this approach is the use of SHM systems to detect the presence of defects. This book covers all major contemporary aerospace-relevant SHM methods, from the basics of each method to the various defect types that SHM is required to detect to discussion of signal processing developments alongside considerations of aerospace safety requirements. It will be of interest to professionals in industry and academic researchers alike, as well as engineering students.

Anmerkung: Chapter 1. Introduction -- Chapter 2. Monitoring tasks in aerospace -- Chapter 3. Defect types -- Chapter 4. Aerospace requirements -- Chapter 5. Ultrasonics -- Chapter 6. Vibration based monitoring -- Chapter 7. Acoustic emission -- Chapter 8. Strain monitoring -- Chapter 9. Data reduction -- Chapter 10. Conclusions.

In: Springer Nature eBook

Weitere Ausg.: Printed edition: ISBN 9783030721916

Weitere Ausg.: Printed edition: ISBN 9783030721930

Weitere Ausg.: Printed edition: ISBN 9783030721947

Sprache: Englisch

DOI: 10.1007/978-3-030-72192-3

URL: https://doi.org/10.1007/978-3-030-72192-3