Evaluation Of Mechanical Modal Characteristics Using Optical Techniques

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Optical Metrology For Fluids Combustion And Solids
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Author : Carolyn Mercer
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Optical Metrology For Fluids Combustion And Solids written by Carolyn Mercer and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
Optical Metrology for Fluids, Combustion and Solids is the first practical handbook that presents the assemblage of the techniques necessary to provide a basic understanding of optical measurement for fluids, combustion, and solids. The use of light as a measurement tool has grown over the past twenty years from a narrowly specialized activity to a mainstay of modern research today. Until recently, the knowledge that could be extracted from the light interaction of light with physical objects was limited to specialized activities. The invention of the laser, the computer and microelectronics has enabled a measurement revolution such that virtually every parameter of engineering interest can be measured using the minimally intrusive properties of light. The authors of this book's chapters are leaders in this revolution. They work on the front lines of research in government, industry, and universities, inventing yet more ways to harness the power of light for the generation of knowledge.
Evaluation Of Mechanical Modal Characteristics Using Optical Techniques
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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher:
Release Date : 2018-09-27
Evaluation Of Mechanical Modal Characteristics Using Optical Techniques written by National Aeronautics and Space Adm Nasa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-27 with categories.
In this paper the sensitivity of embedded fiber optic sensors to changes in modal characteristics of plates is discussed. In order to determine the feasibility of embedded fiber Bragg gratings for the detection of modal shapes and modal frequencies, a comparison of holographically imaged modes and the detected dynamic strain from embedded fiber optic Bragg gratings is made. Time averaged optical holography is used for the detection of mechanical defects, or damage, in various aerospace components. The damage is detected by measuring an alteration in structural dynamics, which is visually apparent when using time-averaged holography. These shifts in the mode shapes, both in frequency of the resonance and spatial location of vibration nodes, are caused by changes in parameters that affect the structure's mechanical impedance, such as stiffness, mass and damping, resulting from cracks or holes. It is anticipated that embedded fiber optic sensor arrays may also be able to detect component damage by sensing these changes in modal characteristics. This work is designed to give an initial indication to the feasibility of damage detection through the monitoring of modal frequencies and mode shapes with fiber optic sensors. Lekki, John and Adamovsky, Grigory and Flanagan, Patrick and Weiland, Ken Glenn Research Center NASA/TM-2002-211678, NAS 1.15:211678, E-13395...
Research Technology 2002
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Author :
language : en
Publisher: DIANE Publishing
Release Date :
Research Technology 2002 written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Optical Diagnostics For Fluids Solids And Combustion
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Author :
language : en
Publisher:
Release Date : 2003
Optical Diagnostics For Fluids Solids And Combustion written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Flow visualization categories.
Neural Net Based Optical Nde Method For Structural Health Monitoring
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Author :
language : en
Publisher:
Release Date : 2003
Neural Net Based Optical Nde Method For Structural Health Monitoring written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Damage Detection Using Holography And Interferometry
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Author : Arthur J. Decker
language : en
Publisher:
Release Date : 2003
Damage Detection Using Holography And Interferometry written by Arthur J. Decker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Advancement Of Optical Methods In Experimental Mechanics Volume 3
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Author : Helena Jin
language : en
Publisher: Springer
Release Date : 2015-11-17
Advancement Of Optical Methods In Experimental Mechanics Volume 3 written by Helena Jin and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-17 with Technology & Engineering categories.
Advancement of Optical Methods in Experimental Mechanics, Volume 3 of the Proceedings of the 2015SEM Annual Conference& Exposition on Experimental and Applied Mechanics, the third volume of nine from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on a wide range of optical methods ranging from traditional photoelasticity and interferometry to more recent DIC and DVC techniques, and includes papers in the following general technical research areas: Advanced optical interferometry Developments in Image correlation (Digital &Volumetric ) Full Field Methods Novel Optical Methods for Stress/Strain Analysis Advances in Optical Methods
Advanced Composite Materials And Structures
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Author : Mohamed Thariq Hameed Sultan
language : en
Publisher: CRC Press
Release Date : 2022-08-31
Advanced Composite Materials And Structures written by Mohamed Thariq Hameed Sultan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-31 with Technology & Engineering categories.
This book bridges the gap between theoretical concepts and their implementations, especially for the high-performance structures/components related to advanced composite materials. This work focuses on the prediction of various structural responses such as deformations, natural frequencies etc. of advanced composites under complex environments and/or loading conditions. In addition, it discusses micro-mechanical material modeling of various advanced composite materials that involve different structures ranging from basic to advanced, such as beams, flat and curved panels, shells, skewed, corrugated, and other materials, as well as various solution techniques via analytical, semi-analytical, and numerical approaches. This book: Covers micro-mechanical material modeling of advanced composite materials Describes constitutive models of different composite materials and kinematic models of different structural configuration Discusses pertinent analytical, semi-analytical, and numerical techniques Focusses on structural responses relating to deformations, natural frequencies, and critical loads under complex environments Presents actual demonstrations of theoretical concepts as applied to real examples using Ansys APDL scripts This book is aimed at researchers, professionals, and graduate students in mechanical engineering, material science, material engineering, structural engineering, aerospace engineering, and composite materials.
Life Cycle Analysis And Assessment In Civil Engineering Towards An Integrated Vision
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Author : Robby Caspeele
language : en
Publisher: CRC Press
Release Date : 2018-10-31
Life Cycle Analysis And Assessment In Civil Engineering Towards An Integrated Vision written by Robby Caspeele and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-31 with Technology & Engineering categories.
This volume contains the papers presented at IALCCE2018, the Sixth International Symposium on Life-Cycle Civil Engineering (IALCCE2018), held in Ghent, Belgium, October 28-31, 2018. It consists of a book of extended abstracts and a USB device with full papers including the Fazlur R. Khan lecture, 8 keynote lectures, and 390 technical papers from all over the world. Contributions relate to design, inspection, assessment, maintenance or optimization in the framework of life-cycle analysis of civil engineering structures and infrastructure systems. Life-cycle aspects that are developed and discussed range from structural safety and durability to sustainability, serviceability, robustness and resilience. Applications relate to buildings, bridges and viaducts, highways and runways, tunnels and underground structures, off-shore and marine structures, dams and hydraulic structures, prefabricated design, infrastructure systems, etc. During the IALCCE2018 conference a particular focus is put on the cross-fertilization between different sub-areas of expertise and the development of an overall vision for life-cycle analysis in civil engineering. The aim of the editors is to provide a valuable source of cutting edge information for anyone interested in life-cycle analysis and assessment in civil engineering, including researchers, practising engineers, consultants, contractors, decision makers and representatives from local authorities.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995-08
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-08 with Aeronautics categories.