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Vibration Fatigue by Spectral Methods

Vibration Fatigue by Spectral Methods
From Structural Dynamics to Fatigue Damage – Theory and Experiments

by Janko Slavič,Miha Boltezar,Matjaz Mrsnik,Martin Cesnik,Jaka Javh

  • Publisher : Elsevier
  • Release : 2020-08-20
  • Pages : 230
  • ISBN : 0128223669
  • Language : En, Es, Fr & De
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Vibration Fatigue by Spectral Methods relates the structural dynamics theory to the high-cycle vibration fatigue. The book begins with structural dynamics theory and relates the uniaxial and multiaxial vibration fatigue to the underlying structural dynamics and signal processing theory. Organized in two parts, part I gives the theoretical background and part II the selected experimental research. The time- and frequency- domain aspects of signal processing in general, related to structural dynamics and counting methods are covered in detail. It also covers all the underlying theory in structural dynamics, signal processing, uniaxial & multiaxial fatigue; including non-Gaussianity and non-stationarity. Finally, it provides the latest research on multiaxial vibration fatigue and the non-stationarity and non-Gaussianity effects. This book is for engineers, graduate students, researchers and industry professionals working in the field of structural durability under random loading and vibrations and also those dealing with fatigue of materials and constructions. Introduces generalized structural dynamics theory of multiaxial vibration fatigue Maximizes understanding of structural dynamics theory in relation to frequency domain fatigue Illustrates connections between experimental work and theory with case studies, cross-referencing, and parallels to accelerated vibration testing

Spectral Method in Multiaxial Random Fatigue

Spectral Method in Multiaxial Random Fatigue
A Book

by Adam Nieslony,Ewald Macha

  • Publisher : Springer Science & Business Media
  • Release : 2007-09-04
  • Pages : 148
  • ISBN : 3540738231
  • Language : En, Es, Fr & De
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This monograph examines the theoretical foundations of the spectral method for fatigue life determination. The authors discuss a rule of description of random loading states with the matrix of power spectral density functions of the stress/strain tensor components. Some chosen criteria of multiaxial fatigue failure are analyzed. The formula proposed in this book enables readers to determine power spectral density of the equivalent history directly from the components of the power spectral density matrix of the multidimensional stochastic process.

Non-Gaussian Random Vibration Fatigue Analysis and Accelerated Test

Non-Gaussian Random Vibration Fatigue Analysis and Accelerated Test
A Book

by Yu Jiang

  • Publisher : Springer Nature
  • Release : 2021
  • Pages : 129
  • ISBN : 981163694X
  • Language : En, Es, Fr & De
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Random Vibration and Spectral Analysis/Vibrations aléatoires et analyse spectral

Random Vibration and Spectral Analysis/Vibrations aléatoires et analyse spectral
A Book

by A. Preumont

  • Publisher : Springer Science & Business Media
  • Release : 1994-09-30
  • Pages : 272
  • ISBN : 9780792330363
  • Language : En, Es, Fr & De
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I became interested in Random Vibration during the preparation of my PhD dissertation, which was concerned with the seismic response of nuclear reactor cores. I was initiated into this field through the cla.ssical books by Y.K.Lin, S.H.Crandall and a few others. After the completion of my PhD, in 1981, my supervisor M.Gera.din encouraged me to prepare a course in Random Vibration for fourth and fifth year students in Aeronautics, at the University of Liege. There was at the time very little material available in French on that subject. A first draft was produced during 1983 and 1984 and revised in 1986. These notes were published by the Presses Poly techniques et Universitaires Romandes (Lausanne, Suisse) in 1990. When Kluwer decided to publish an English translation ofthe book in 1992, I had to choose between letting Kluwer translate the French text in-extenso or doing it myself, which would allow me to carry out a sustantial revision of the book. I took the second option and decided to rewrite or delete some of the original text and include new material, based on my personal experience, or reflecting recent technical advances. Chapter 6, devoted to the response of multi degree offreedom structures, has been completely rewritten, and Chapter 11 on random fatigue is entirely new. The computer programs which have been developed in parallel with these chapters have been incorporated in the general purpose finite element software SAMCEF, developed at the University of Liege.

Metal Fatigue Analysis Handbook

Metal Fatigue Analysis Handbook
Practical Problem-solving Techniques for Computer-aided Engineering

by Yung-Li Lee,Mark E. Barkey,Hong-Tae Kang

  • Publisher : Elsevier
  • Release : 2011-10-06
  • Pages : 632
  • ISBN : 0123852056
  • Language : En, Es, Fr & De
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Understand why fatigue happens and how to model, simulate, design and test for it with this practical, industry-focused reference Written to bridge the technology gap between academia and industry, the Metal Fatigue Analysis Handbook presents state-of-the-art fatigue theories and technologies alongside more commonly used practices, with working examples included to provide an informative, practical, complete toolkit of fatigue analysis. Prepared by an expert team with extensive industrial, research and professorial experience, the book will help you to understand: Critical factors that cause and affect fatigue in the materials and structures relating to your work Load and stress analysis in addition to fatigue damage-the latter being the sole focus of many books on the topic How to design with fatigue in mind to meet durability requirements How to model, simulate and test with different materials in different fatigue scenarios The importance and limitations of different models for cost effective and efficient testing Whilst the book focuses on theories commonly used in the automotive industry, it is also an ideal resource for engineers and analysts in other disciplines such as aerospace engineering, civil engineering, offshore engineering, and industrial engineering. The only book on the market to address state-of-the-art technologies in load, stress and fatigue damage analyses and their application to engineering design for durability Intended to bridge the technology gap between academia and industry - written by an expert team with extensive industrial, research and professorial experience in fatigue analysis and testing An advanced mechanical engineering design handbook focused on the needs of professional engineers within automotive, aerospace and related industrial disciplines

Random Vibrations

Random Vibrations
Analysis of Structural and Mechanical Systems

by Loren D. Lutes,Shahram Sarkani

  • Publisher : Butterworth-Heinemann
  • Release : 2004
  • Pages : 638
  • ISBN : 0750677651
  • Language : En, Es, Fr & De
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The topic of Random Vibrations is the behavior of structural and mechanical systems when they are subjected to unpredictable, or random, vibrations. These vibrations may arise from natural phenomena such as earthquakes or wind, or from human-controlled causes such as the stresses placed on aircraft at takeoff and landing. Study and mastery of this topic enables engineers to design and maintain structures capable of withstanding random vibrations, thereby protecting human life. Random Vibrations will lead readers in a user-friendly fashion to a thorough understanding of vibrations of linear and nonlinear systems that undergo stochastic-random-excitation. Provides over 150 worked out example problems and, along with over 225 exercises, illustrates concepts with true-to-life engineering design problems Offers intuitive explanations of concepts within a context of mathematical rigor and relatively advanced analysis techniques. Essential for self-study by practicing engineers, and for instruction in the classroom.

Engineering Asset Management - Systems, Professional Practices and Certification

Engineering Asset Management - Systems, Professional Practices and Certification
Proceedings of the 8th World Congress on Engineering Asset Management (WCEAM 2013) & the 3rd International Conference on Utility Management & Safety (ICUMAS)

by Peter W. Tse,Joseph Mathew,King Wong,Rocky Lam,C.N. Ko

  • Publisher : Springer
  • Release : 2014-12-09
  • Pages : 1811
  • ISBN : 3319095072
  • Language : En, Es, Fr & De
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This proceeding represents state-of-the-art trends and developments in the emerging field of engineering asset management as presented at the Eight World Congress on Engineering Asset Management (WCEAM). The Proceedings of the WCEAM 2013 is an excellent reference for practitioners, researchers and students in the multidisciplinary field of asset management, covering topics such as: Asset condition monitoring and intelligent maintenance, 2. Asset data warehousing, data mining and fusion, 3. Asset performance and level-of-service models, 4. Design and life-cycle integrity of physical assets, 5. Deterioration and preservation models for assets, 6. Education and training in asset management, 7. Engineering standards in asset management, 8. Fault diagnosis and prognostics, 9. Financial analysis methods for physical assets, 10. Human dimensions in integrated asset management, 11. Information quality management, 12. Information systems and knowledge management, 13. Intelligent sensors and devices, 14. Maintenance strategies in asset management, 15. Optimisation decisions in asset management, 16. Risk management in asset management, 17. Strategic asset management, 18. Sustainability in asset management. King WONG served as Congress Chair for WCEAM 2013 and ICUMAS 2013 is the President of the Hong Kong Institute of Utility Specialists (HKIUS) and Convener of International Institute of Utility Specialists (IIUS). Peter TSE is the Director of the Smart Engineering Asset Management laboratory (SEAM) at the City University of Hong Kong and served as the Chair of WCEAM 2013 Organising Committee. Joseph MATHEW served as the Co-Chair of WCEAM 2013 is also WCEAM’s General Chair. He is the Chief Executive Officer of Asset Institute, Australia.

Reliability of High-Power Mechatronic Systems 1

Reliability of High-Power Mechatronic Systems 1
Aerospace and Automotive Applications: Simulation, Modeling and Optimization

by Abdelkhalak El Hami,David Delaux,Henri Grzeskowiak

  • Publisher : Elsevier
  • Release : 2017-09-27
  • Pages : 312
  • ISBN : 0081024223
  • Language : En, Es, Fr & De
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This first volume of a set dedicated to the reliability of high-power mechatronic systems focuses specifically on simulation, modeling and optimization in automotive and aerospace applications. In the search to improve industrial competitiveness, the development of methods and tools for the design of products is especially pertinent in the context of cost reduction. This book seeks to propose new methods that simultaneously allow for a quicker design of future mechatronic devices in the automotive and aerospace industries while guaranteeing their increased reliability. The reliability of these critical elements is further validated digitally through new multi-physical and probabilistic models that could ultimately lead to new design standards and reliable forecasting. Presents a methodological guide that demonstrates the reliability of fractured mechatronic components and devices Includes numerical and statistical models to optimize the reliability of the product architecture Helps users develop a methodology to characterize critical elements at the earliest stage

Spectral Methods to Estimate Local Multiaxial Fatigue Failure Criteria for Structures Undergoing Random Vibrations

Spectral Methods to Estimate Local Multiaxial Fatigue Failure Criteria for Structures Undergoing Random Vibrations
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2000
  • Pages : 36
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Mechanical Vibration and Shock Analysis, Fatigue Damage

Mechanical Vibration and Shock Analysis, Fatigue Damage
A Book

by Christian Lalanne

  • Publisher : John Wiley & Sons
  • Release : 2014-05-12
  • Pages : 542
  • ISBN : 1848216475
  • Language : En, Es, Fr & De
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Fatigue damage in a system with one degree of freedom is one of the two criteria applied when comparing the severity of vibratory environments. The same criterion is also used for a specification representing the effects produced by the set of vibrations imposed in a real environment. In this volume, which is devoted to the calculation of fatigue damage, Christian Lalanne explores the hypotheses adopted to describe the behavior of material affected by fatigue and the laws of fatigue accumulation. The author also considers the methods for counting response peaks, which are used to establish the histogram when it is not possible to use the probability density of the peaks obtained with a Gaussian signal. The expressions for mean damage and its standard deviation are established and other hypotheses are tested.

Guide to Load Analysis for Durability in Vehicle Engineering

Guide to Load Analysis for Durability in Vehicle Engineering
A Book

by P. Johannesson,M. Speckert

  • Publisher : John Wiley & Sons
  • Release : 2013-08-29
  • Pages : 456
  • ISBN : 1118700503
  • Language : En, Es, Fr & De
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The overall goal of vehicle design is to make a robust and reliable product that meets the demands of the customers and this book treats the topic of analysing and describing customer loads with respect to durability. Guide to Load Analysis for Vehicle and Durability Engineering supplies a variety of methods for load analysis and also explains their proper use in view of the vehicle design process. In Part I, Overview, there are two chapters presenting the scope of the book as well as providing an introduction to the subject. Part II, Methods for Load Analysis, describes useful methods and indicates how and when they should be used. Part III, Load Analysis in view of the Vehicle Design Process, offers strategies for the evaluation of customer loads, in particular characterization of customer populations, which leads to the derivation of design loads, and finally to the verification of systems and components. Key features: • Is a comprehensive collection of methods for load analysis, vehicle dynamics and statistics • Combines standard load data analysis methods with statistical aspects on deriving test loads from surveys of customer usage • Sets the methods used in the framework of system dynamics and response, and derives recommendations for the application of methods in engineering practice • Presents a reliability design methodology based on statistical evaluation of component strength and customers loads • Includes case studies and illustrative examples that translate the theory into engineering practice Developed in cooperation with six European truck manufacturers (DAF, Daimler, Iveco, MAN, Scania and Volvo) to meet the needs of industry, Guide to Load Analysis for Vehicle and Durability Engineering provides an understanding of the current methods in load analysis and will inspire the incorporation of new techniques in the design and test processes.

Proceedings of the 14th International Scientific Conference: Computer Aided Engineering

Proceedings of the 14th International Scientific Conference: Computer Aided Engineering
A Book

by Eugeniusz Rusiński,Damian Pietrusiak

  • Publisher : Springer
  • Release : 2019-03-09
  • Pages : 873
  • ISBN : 3030049752
  • Language : En, Es, Fr & De
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This book presents the proceedings of the 14th International Conference on Computer Aided Engineering, collecting the best papers from the event, which was held in Wrocław, Poland in June 2018. It includes contributions from researchers in computer engineering addressing the applied science and development of the industry and offering up-to-date information on the development of the key technologies in technology transfer. It is divided into the following thematic sections: • parametric and concurrent design, • advanced numerical simulations of physical systems, • integration of CAD/CAE systems for machine design, • presentation of professional CAD and CAE systems, • presentation of the modern methods of machine testing, • presentation of practical CAD/CAM/CAE applications: – designing and manufacturing of machines and technical systems, – durability prediction, repairs and retrofitting of power equipment, – strength and thermodynamic analyses of power equipment, – design and calculation of various types of load-carrying structures, – numerical methods of dimensioning materials handling and long-distance transport equipment (cranes, gantries, automotive, rail, air, space and other special vehicles and earth-moving machinery), • CAE integration problems. The conference and its proceedings offer a major interdisciplinary forum for researchers and engineers in innovative studies and advances in this dynamic field.

Random Vibrations

Random Vibrations
Theory and Practice

by Paul H. Wirsching,Thomas L. Paez,Keith Ortiz

  • Publisher : Courier Corporation
  • Release : 2006
  • Pages : 448
  • ISBN : 0486450155
  • Language : En, Es, Fr & De
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The most comprehensive text and reference available on the study of random vibrations, this book was designed for graduate students and mechanical, structural, and aerospace engineers. In addition to coverage of background topics in probability, statistics, and random processes, it develops methods for analyzing and controlling random vibrations. 1995 edition.

Sensors and Instrumentation, Aircraft/Aerospace, Energy Harvesting & Dynamic Environments Testing, Volume 7

Sensors and Instrumentation, Aircraft/Aerospace, Energy Harvesting & Dynamic Environments Testing, Volume 7
Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics 2019

by Chad Walber,Patrick Walter,Steve Seidlitz

  • Publisher : Springer
  • Release : 2019-05-03
  • Pages : 417
  • ISBN : 3030126765
  • Language : En, Es, Fr & De
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Sensors and Instrumentation, Aircraft/Aerospace and Energy Harvesting, Volume 7: Proceedings of the 37th IMAC, A Conference and Exposition on Structural Dynamics, 2019, the seventh volume of eight from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Shock & Vibration, Aircraft/Aerospace, Energy Harvesting & Dynamic Environments Testing including papers on: Alternative Sensing & Acquisition Active Controls Instrumentation Aircraft/Aerospace & Aerospace Testing Techniques Energy Harvesting

Dramatic Effect of Cross-Correlations in Random Vibrations of Discrete Systems, Beams, Plates, and Shells

Dramatic Effect of Cross-Correlations in Random Vibrations of Discrete Systems, Beams, Plates, and Shells
A Book

by Isaac Elishakoff

  • Publisher : Springer Nature
  • Release : 2020-04-11
  • Pages : 338
  • ISBN : 3030403947
  • Language : En, Es, Fr & De
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This volume explains the dramatic effect of cross-correlations in forming the structural response of aircraft in turbulent excitation, ships in rough seas, cars on irregular roads, and other dynamic regimes. It brings into sharp focus the dramatic effect of cross correlations often neglected due to the analytical difficulty of their evaluation. Veteran author Professor Isaac Elishakoff illustrates how neglect of cross correlations could result in underestimation of the response by tens or hundreds of percentages the effect of the random vibrations of structures’ main elements, including beams, plates, and shells.

Random Vibration

Random Vibration
A Book

by Christi Lalanne

  • Publisher : CRC Press
  • Release : 2020-02-03
  • Pages : 320
  • ISBN : 1000723798
  • Language : En, Es, Fr & De
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The vast majority of vibrations Encountered in the real Environment are random in nature. Such vibrations are intrinsically complicated, and this volume describes the Enabling process for simplification of the analysis required. and the analysis of the signal in the frequency domain. Power spectrum density is also defined, with the requisite precautions to be taken in its calculation described together with the processes (windowing. overlapping) necessary for improved results. A further complementary method, the analysis of statistical properties of the time signal. is described. This enables the distribution law of the maxima of a random Gaussian signal to be determined and simplifies calculation of fatigue damage to be made by the avoidance of the direct counting of peaks.

Mechanical Vibration and Shock Analysis, Random Vibration

Mechanical Vibration and Shock Analysis, Random Vibration
A Book

by Christian Lalanne

  • Publisher : John Wiley & Sons
  • Release : 2013-03-04
  • Pages : 129
  • ISBN : 1118618998
  • Language : En, Es, Fr & De
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Mechanical Vibration and Shock Analysis, Second Edition Volume 3: Random Vibration The vast majority of vibrations encountered in a real-world environment are random in nature. Such vibrations are intrinsically complicated, but this volume describes a process enabling the simplification of the analysis required, and the analysis of the signal in the frequency domain. Power spectrum density is also defined, with the requisite precautions to be taken in its calculation described together with the processes (windowing, overlapping) necessary for improved results. A further complementary method, the analysis of statistical properties of the time signal, is described. This enables the distribution law of the maxima of a random Gaussian signal to be determined and simplifies calculation of fatigue damage to be made by the avoidance of the direct counting of peaks. The Mechanical Vibration and Shock Analysis five-volume series has been written with both the professional engineer and the academic in mind. Christian Lalanne explores every aspect of vibration and shock, two fundamental and extremely significant areas of mechanical engineering, from both a theoretical and practical point of view. The five volumes cover all the necessary issues in this area of mechanical engineering. The theoretical analyses are placed in the context of both the real world and the laboratory, which is essential for the development of specifications.

Ships and Offshore Structures XIX

Ships and Offshore Structures XIX
A Book

by Carlos Guedes Soares,Y. Garbatov

  • Publisher : CRC Press
  • Release : 2015-09-03
  • Pages : 976
  • ISBN : 1315647192
  • Language : En, Es, Fr & De
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This three-volume work presents the proceedings from the 19th International Ship and Offshore Structures Congress held in Cascais, Portugal on 7th to 10th September 2015. The International Ship and Offshore Structures Congress (ISSC) is a forum for the exchange of information by experts undertaking and applying marine structural research.The aim of

Load Reducing Control for Wind Turbines.

Load Reducing Control for Wind Turbines.
Load Estimation and Higher Level Controller Tuning based on Disturbance Spectra and Linear.

by Martin Shan

  • Publisher : BoD – Books on Demand
  • Release : 2018-08-15
  • Pages : 260
  • ISBN : 3839613698
  • Language : En, Es, Fr & De
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In wind turbine engineering, it is a well-known fact that mechanical loading of the structural components, as tower and blades, can be heavily influenced by means of control. This work provides a comprehensive discussion on systematic control design for active load reduction. A review of the established approaches for load reducing pitch control is given. The basic idea is to adjust the blade pitch angles to provide active damping of structural loads or to compensate for periodic load components. A survey on rating and cost of wind turbine structural components is given to sketch the potential impacts of control design on Cost-of-Energy. Special focus in a separate chapter is given to the major trade-off between load reductions and rating of the pitch actuator system. In the main part, a pragmatic approach to systematic control design by use of modern multi-variable control design methods is introduced. Linear models in combination with disturbance spectra are applied to allow for fast and transparent optimization of the controllers. Exemplarily, this hierarchical control design / controller tuning approach is demonstrated for two different types of load reducing pitch controllers.

Model Validation and Uncertainty Quantification, Volume 3

Model Validation and Uncertainty Quantification, Volume 3
Proceedings of the 32nd IMAC, A Conference and Exposition on Structural Dynamics, 2014

by H. Sezer Atamturktur,Babak Moaveni,Costas Papadimitriou,Tyler Schoenherr

  • Publisher : Springer Science & Business Media
  • Release : 2014-04-11
  • Pages : 427
  • ISBN : 3319045520
  • Language : En, Es, Fr & De
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This third volume of eight from the IMAC - XXXII Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Linear Systems Substructure Modelling Adaptive Structures Experimental Techniques Analytical Methods Damage Detection Damping of Materials & Members Modal Parameter Identification Modal Testing Methods System Identification Active Control Modal Parameter Estimation Processing Modal Data