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Ambient Vibration Monitoring
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Book Synopsis Ambient Vibration Monitoring by : Helmut Wenzel
Download or read book Ambient Vibration Monitoring written by Helmut Wenzel and published by John Wiley & Sons. This book was released on 2005-12-13 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-operation vibration monitoring for complex mechanical structures and rotating machines is of key importance in many industrial areas such as aeronautics (wings and other structures subject to strength), automobile (gearbox mounting with a sports car body), rail transportation, power engineering (rotating machines, core and pipes of nuclear power plants), and civil engineering (large buildings subject to hurricanes or earthquakes, bridges, dams, offshore structures). Tools for the detection and the diagnosis of small changes in vibratory characteristics are particularly useful to set up a preventive maintenance policy based on the actual evolution of the state of the monitored machine or structure, as opposed to systematic a priori planning. Ambient Vibration Monitoring is the backbone of such structural assessment monitoring and control. It provides the possibility to gain useful data under ambient conditions for the assessment of structures and components. Written by a widely respected authority in this area, Ambient Vibration Monitoring describes the current practice of ambient vibration methodologies illustrated by a number of practical examples. Designed to aid the practical engineer with their understanding of the topic, it is the culmination of many years of practical research and includes numerous ‘real world’ examples. It also provides information on applicable solutions. This book will enable not only practitioners (in civil, mechanical and aerospace engineering), but also researchers and students, to learn more about the theory and practical applications of this subject.
Book Synopsis Structural Health Monitoring by : Zachary C. Hansen
Download or read book Structural Health Monitoring written by Zachary C. Hansen and published by . This book was released on 2007 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ambient Vibration Monitoring for Assessing the Structural Health of Offshore Production Platforms by : A. E. Stevenson
Download or read book Ambient Vibration Monitoring for Assessing the Structural Health of Offshore Production Platforms written by A. E. Stevenson and published by . This book was released on 1978 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ambient Vibration Monitoring by : Helmut Wenzel
Download or read book Ambient Vibration Monitoring written by Helmut Wenzel and published by Wiley-Blackwell. This book was released on 2015-06-12 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Closing the Loop by : Zachariah Wynne
Download or read book Closing the Loop written by Zachariah Wynne and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Vibration Analysis for Civil Structures by : Joel P. Conte
Download or read book Experimental Vibration Analysis for Civil Structures written by Joel P. Conte and published by Springer. This book was released on 2017-10-11 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited volume presents selected contributions from the International Conference on Experimental Vibration Analysis of Civil Engineering Structures held in San Diego, California in 2017 (EVACES2017). The event brought together engineers, scientists, researchers, and practitioners, providing a forum for discussing and disseminating the latest developments and achievements in all major aspects of dynamic testing for civil engineering structures, including instrumentation, sources of excitation, data analysis, system identification, monitoring and condition assessment, in-situ and laboratory experiments, codes and standards, and vibration mitigation.
Book Synopsis Ambient vibration studies for system identification of civil structures by : 김은주
Download or read book Ambient vibration studies for system identification of civil structures written by 김은주 and published by 한양대학교 출판부. This book was released on 2019-12-12 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Civil infrastructure undergoes various and consistent loads during its lifecycles, such as wind, seismic loads, and etc. The declining condition, the performance of the structure and the potential consequential damages due to the loads become critical in most industrialized countries (Spencer et al., 2016). Therefore, during decades, efforts have been made to understand the serviceability of the structure. Because the behavior of a structure depends on stiffness and mass distribution, the structure may have been examined through finite element models. However, because the aged structure show changed condition, such a method often fail to predict the fundamental characteristics of the structure precisely. Alternatively, the driving interests have been made to develop a non-destructive tool that can estimate the characteristics of an in-service structure, which one among various is known as Structural Health Monitoring.
Book Synopsis NIF Ambient Vibration Measurements by :
Download or read book NIF Ambient Vibration Measurements written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LLNL has an ongoing research and development project that includes developing data acquisition systems with remote wireless communication for monitoring the vibrations of large civil engineering structures. In order to establish the capability of performing remote sensing over an extended period of time, the researchers needed to apply this technology to a real structure. The construction of the National Ignition Facility provided an opportunity to test the data acquisition system on a large structure to monitor whether the facility is remaining within the strict ambient vibration guidelines. This document will briefly discuss the NIF ambient vibration requirements and summarize the vibration measurements performed during the Spring and Summer of 1999. In addition, a brief description of the sensors and the data acquisition systems will be provided in Appendix B.
Book Synopsis Advances in Dynamics of Vehicles on Roads and Tracks by : Matthijs Klomp
Download or read book Advances in Dynamics of Vehicles on Roads and Tracks written by Matthijs Klomp and published by Springer Nature. This book was released on 2020-02-14 with total page 1917 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers together papers presented at the 26th IAVSD Symposium on Dynamics of Vehicles on Roads and Tracks, held on August 12 – 16, 2019, at the Lindholmen Conference Centre in Gothenburg, Sweden. It covers cutting-edge issues related to vehicle systems, including vehicle design, condition monitoring, wheel and rail contact, automated driving systems, suspension and ride analysis, and many more topics. Written by researchers and practitioners, the book offers a timely reference guide to the field of vehicle systems dynamics, and a source of inspiration for future research and collaborations.
Book Synopsis Vibration Monitoring, Testing, and Instrumentation by : Clarence W. de Silva
Download or read book Vibration Monitoring, Testing, and Instrumentation written by Clarence W. de Silva and published by CRC Press. This book was released on 2007-04-19 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt: Controlling a system's vibrational behavior, whether for reducing harmful vibrations or for enhancing useful types, is critical to ensure safe and economical operation as well as longer structural and equipment lifetimes. A related issue is the effect of vibration on humans and their environment. Achieving control of vibration requires thorough und
Book Synopsis Development of Efficient Vibration-based Techniques for Structural Health Monitoring by : Ardalan Sabamehr
Download or read book Development of Efficient Vibration-based Techniques for Structural Health Monitoring written by Ardalan Sabamehr and published by . This book was released on 2018 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural Health Monitoring (SHM) plays a vital role in assessing in-situ the performance of a structure. There are several techniques available for System Identification, Damage Detection and Model Updating. SHM based on the vibration of structures has attracted the attention of researchers in many fields such as: civil, aeronautical and mechanical engineering. This research focuses on the state-of-the art methods for Vibration Testing, Modal Analysis, Model Updating, and Damage Detection in structures. The objective of the thesis is to develop efficient methods in the above areas of SHM using ambient vibration testing. To develop and verify the proposed methods, several case studies are to be developed and implemented a new technique in multi setup merging by use of Random Decrement Technique (RDT). In addition, the preprocessing methods are required for some certain tests like ambient vibration where signal to noise ratio and vibration amplitude are quite low. The RDT is a time domain procedure, where the structural responses to operational loads are transformed into random decrement functions, which are proportional to the correlation functions of a system's operational responses, which can be considered equivalent to free vibration responses. Ambient vibration test of a structure usually produces noisy response and the existing modal identification techniques such as Frequency Domain Decomposition (FDD) and Stochastic Subspace Identifications (SSI) techniques often fail to produce accurate results in such case. Due to contamination of ambient vibration with white Gaussian noise, preprocessing may be required to clean up the vibration signal in order to detect the modal properties accurately. For Operational Modal Analysis (OMA), the multi-setup (or roving sensors) measurement techniques are required due to less number of sensors as compared to the number of degrees of freedom (DOFs) in a structure. The technique is based on selection of DOFs as reference, which is fixed during all measurements, and the rest of sensors are roved in each setup. Among all available merging techniques, PreGER have been used recently as an alternative method because the merging process have been conducted before parameter estimation. In addition to modal analysis, the measured vibration response of a structure and the results from its Finite Element (FE) model often have some differences because of the idealization and assumptions in representing the structural system, material properties, support conditions, etc., in the FE model. The methods for model updating and damage detection have been classified into Physics-based methods where a mathematical model of a structure needs to be constructed, and data-driven methods where an explicit FE model is used, only the data pattern are used for identifying the changes is a structure.The objective of this research is to develop the hybrid method which is the combination of the physics-based and data-driven methods. The Matrix Update Method (MUM) has been utilized as a physics-based method of model updating, to compare the results between developed method and MUM. Furthermore, damage in structural system is an important concern as it weakens the structure and reduces its functional capacity, and may even cause failure. There are two main challenges in damage detection in the research including baseline free method and the sensitivity analysis. Finally, the proposed merging technique RDT-PreGER shows the efficient method to reduce the number of data and remove the noise in ambient test. In addition, implementing hybrid technique in FE model updating result in providing accurate result by choosing the proper number of groups and well trained network. The result of damage detection technique show that all baseline and baseline free techniques have an uncertainty so the subtle level of damage cannot be detected properly.
Book Synopsis Efficient Joint Analysis of Surface Waves and Introduction to Vibration Analysis: Beyond the Clichés by : Giancarlo Dal Moro
Download or read book Efficient Joint Analysis of Surface Waves and Introduction to Vibration Analysis: Beyond the Clichés written by Giancarlo Dal Moro and published by Springer Nature. This book was released on 2020-06-20 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the gap between theory and practice, showing how a detailed definition of the shear-wave velocity (VS) profile can be efficiently obtained using limited field equipment and following simple acquisition procedures. It demonstrates how surface waves (used to define the VS profile) and vibration data (used to describe the dynamic behaviour of a building) can be recorded using the same equipment, and also highlights common problems, ambiguities and pitfalls that can occur when adopting popular methodologies, which are often based on a series of simplistic assumptions. Today, most national and international building codes take into account a series of parameters aimed at defining the local seismic hazard. Sites are characterised based on the local VS profile, and the dynamic behaviour of existing buildings is defined through the analysis of their eigenmodes. The book includes a series of case studies to help readers gain a deeper understanding of seismic and vibration data and the meaning (pros and cons) of a series of techniques often referred to as MASW, ESAC, SPAC, ReMi, HVSR, MAAM and HS. It also provides access to some of the datasets so that readers can gain a deeper and more concrete understanding of both the theoretical and practical aspects.
Book Synopsis Structural Analysis of Historical Constructions by : Rafael Aguilar
Download or read book Structural Analysis of Historical Constructions written by Rafael Aguilar and published by Springer. This book was released on 2018-08-18 with total page 2536 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the 11th International Conference on Structural Analysis of Historical Constructions (SAHC) that was held in Cusco, Peru in 2018. It disseminates recent advances in the areas related to the structural analysis of historical and archaeological constructions. The challenges faced in this field show that accuracy and robustness of results rely heavily on an interdisciplinary approach, where different areas of expertise from managers, practitioners, and scientists work together. Bearing this in mind, SAHC 2018 stimulated discussion on the new knowledge developed in the different disciplines involved in analysis, conservation, retrofit, and management of existing constructions. This book is organized according to the following topics: assessment and intervention of archaeological heritage, history of construction and building technology, advances in inspection and NDT, innovations in field and laboratory testing applied to historical construction and heritage, new technologies and techniques, risk and vulnerability assessments of heritage for multiple types of hazards, repair, strengthening, and retrofit of historical structures, numerical modeling and structural analysis, structural health monitoring, durability and sustainability, management and conservation strategies for heritage structures, and interdisciplinary projects and case studies. This volume holds particular interest for all the community interested in the challenging task of preserving existing constructions, enable great opportunities, and also uncover new challenges in the field of structural analysis of historical and archeological constructions.
Book Synopsis Ambient and Forced Vibration Analysis of Full Scale Structures by : Charles Alan Kircher
Download or read book Ambient and Forced Vibration Analysis of Full Scale Structures written by Charles Alan Kircher and published by . This book was released on 1976 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Analysis and Design of Steel and Steel–Concrete Composite Bridges by : Ehab Ellobody
Download or read book Finite Element Analysis and Design of Steel and Steel–Concrete Composite Bridges written by Ehab Ellobody and published by Butterworth-Heinemann. This book was released on 2014-05-30 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, bridge engineers and researchers are increasingly turning to the finite element method for the design of Steel and Steel-Concrete Composite Bridges. However, the complexity of the method has made the transition slow. Based on twenty years of experience, Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges provides structural engineers and researchers with detailed modeling techniques for creating robust design models. The book’s seven chapters begin with an overview of the various forms of modern steel and steel–concrete composite bridges as well as current design codes. This is followed by self-contained chapters concerning: nonlinear material behavior of the bridge components, applied loads and stability of steel and steel–concrete composite bridges, and design of steel and steel–concrete composite bridge components. Constitutive models for construction materials including material non-linearity and geometric non-linearity The mechanical approach including problem setup, strain energy, external energy and potential energy), mathematics behind the method Commonly available finite elements codes for the design of steel bridges Explains how the design information from Finite Element Analysis is incorporated into Building information models to obtain quantity information, cost analysis
Book Synopsis Health Monitoring of Structures Under Ambient Vibrations Using Semiactive Devices by : Mohamed Ihab Sherif Elmasry
Download or read book Health Monitoring of Structures Under Ambient Vibrations Using Semiactive Devices written by Mohamed Ihab Sherif Elmasry and published by . This book was released on 2005 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Industrial Approaches in Vibration-Based Condition Monitoring by : Jyoti Kumar Sinha
Download or read book Industrial Approaches in Vibration-Based Condition Monitoring written by Jyoti Kumar Sinha and published by CRC Press. This book was released on 2020-01-21 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vibration-based condition monitoring (VCM) is a well-accepted approach in industries for early detection of any defect, thereby triggering the maintenance process and ultimately reducing overheads and plant downtime. A number of vibration instruments, data analyzer and related hardware and software codes are developed to meet the industry requirements. This book aims to address issues faced by VCM professionals, such as frequency range estimation for vibration measurements, sensors, data collection and data analyzer including related parameters which are explained through step-by-step approaches. Each chapter is written in the tutorial style with experimental and/or industrial examples for clear understanding.
