Opto-structural analysis / John W. Pepi.

Format:

Book

Author/Creator:

Pepi, John W., author.

Contributor:

Society of Photo-Optical Instrumentation Engineers, publisher.

Series:

SPIE monograph ; PM288.

SPIE digital library

SPIE Press monograph ; PM288

Language:

English

Subjects (All):

Optical instruments--Design and construction.

Optical instruments.

Optical engineering.

Structural analysis (Engineering).

Genre:

Electronic books.

Physical Description:

1 online resource (xxii, 480 pages).

Place of Publication:

Bellingham, Washington : SPIE, 2018.

System Details:

Mode of access: World Wide Web.

text file

Summary:

This book presents basic structural deformation and stress analysis as applied to optical systems. It provides the tools for first-order analyses required in the design concept phase before handling the intricate details of a full-up design. While finite element analysis is paramount to a successful design, the purpose of this text is not to use finite element analysis to validate the hand analysis, but rather to use hand analysis to validate the finite element models. The hand analysis forces a discipline that is paramount in the understanding of structural behavior. Presuming that the reader has a working knowledge in the strength of materials, the text applies engineering principles to opto-structural analysis.

Contents:

Preface

Acknowledgments

A note on units

1. Stress and strain: 1.1. Introduction; 1.2. Hooke's Law; 1.3. Beyond tension, compression, and shear; 1.4. Combining stresses; 1.5. Examples for consideration; 1.6. Thermal strain and stress; 1.7. Buckling; References

2. Material properties: 2.1. Properties and definitions; 2.2. Low-thermal-expansion materials; 2.3. Not-so-low-thermal-expansion materials; 2.4. Very high-thermal-expansion materials; References

3. Kinematic mounts: 3.1. Kinematics; 3.2. Quasi-static kinematic mount; 3.3. Flexure analysis; 3.4. Bipod; 3.5. Timmy curves; 3.6. A better bipod; 3.7. An alternative bipod; 3.8. Stroke algorithm; References

4. Solid optics: performance analysis: 4.1. Wavefront error and performance prediction; 4.2. Mount-induced error; 4.3. Gravity error; 4.4. Temperature soak; 4.5. Thermal gradient; 4.6. Coating and cladding; 4.7. Rule of mixtures; 4.8. Trimetallic strip; 4.9. Random variations in the coefficient of thermal expansion; References

5. Lightweight optics: optimization: 5.1. Lightweight optics; 5.2. Core shape; 5.3. Core stiffness; 5.4. Partially closed-back optics; 5.5. Polish; 5.6. Weight optimization; 5.7. Stiffness criteria; 5.8. Stiffness optimization; 5.9. The great debate; References

6. Lightweight optics: performance error: 6.1. Mount-induced error; 6.2. Gravity; 6.3. Gradients; 6.4. Coating and cladding; 6.5. Random variations in the coefficient of thermal expansion; 6.6. All shapes and sizes

7. Large optics: 7.1. Multipoint mounts; 7.2. Zonal mount; 7.3. Hindle mount; 7.4. Active mount; 7.5. Large-aspect-ratio optics; 7.6. Performance comparisons; 7.7. How low can you go? 7.8. Extremely large-aspect-ratio optics; 7.9. Summary; References

8. Figures of merit: 8.1. Mechanical figures of merit; 8.2. Thermal figure of merit; 8.3. Combined figures of merit; 8.4. True mechanical figures of merit; 8.5. Strength-to-weight ratio; 8.6. Graphical summary; 8.7. Lightweight optics; 8.8. Examples; References

9. Adhesives: 9.1. Mechanical properties; 9.2. Load stress distribution; 9.3. Glass / liquid transition; 9.4. Temperature creep; 9.5. Lap shear strength; 9.6. Thermal stress; 9.7. Modeling techniques; 9.8. Fillets; 9.9. Soft elastomers; References

10. Simple dynamics: 10.1. Basics; 10.2. A useful relationship; 10.3. Random vibration; 10.4. Force limits; 10.5. Shipping vibration; 10.6. Acceleration shock; References

11. Fatigue: 11.1. Cyclic fatigue; 11.2. S-N method; 11.3. Nonzero mean stress; 11.4. Fracture mechanics method; 11.5. Random vibration fatigue; References

12. Brittle materials: 12.1. Theoretical strength; 12.2. Failure modes; 12.3. Strength theory; 12.4. Strength with residual stress; 12.5. Stress corrosion; 12.6. Stress corrosion free of residual stress; 12.7. Stress corrosion with residual stress; 12.8. Dynamic fatigue; 12.9. An approximation technique; 12.10. Overload proof test; References

13. Performance analysis of optical structures: 13.1. Supporting optics; 13.2. Metering despace; 13.3. Decentration and tip; 13.4. Structure forms; 13.5. Metering truss design; 13.6. Case study: Teal ruby telescope; 13.7. Support structure; References

14. Nuts and bolts: 14.1. Terminology; 14.2. Bolt material; 14.3. Bolt stress; 14.4. Stress examples; 14.5. Bolt load; 14.6. Thermal load; 14.7. Washers; 14.8. Friction slip and pins; 14.9. Combined bolt loads; References

15. Linear analysis of nonlinear properties: 15.1. Linear theory; 15.2. Nonlinear systems: secant and tangent properties; 15.3. Nonlinear modulus; 15.4. Nonlinear thermal stress; 15.5. Special theory; 15.6. General theory; 15.7. Using secants; 15.8. Sample problems

16. Miscellaneous analysis: 16.1. Venting; 16.2. Stress birefringence; 16.3 Bonded tubes and grooves; 16.4. Bonded flexures; 16.5. Contact stress; 16.6. Friction; 16.7. Large displacements; 16.8. Windows; 16.9. Dimensional instability; References

Epilogue

Index.

Notes:

"SPIE Digital Library."--Website.

Includes bibliographical references and index.

Title from PDF title page (SPIE eBooks Website, viewed 2018-10-21).

Other Format:

Print version

ISBN:

9781510619340

1510619348

OCLC:

1057785368

Access Restriction:

Restricted for use by site license.