Download or read book Application of a Wireless Sensor Node to Health Monitoring of Operational Wind Turbine Blades written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Structural health monitoring (SHM) is a developing field of research with a variety of applications including civil structures, industrial equipment, and energy infrastructure. An SHM system requires an integrated process of sensing, data interrogation and statistical assessment. The first and most important stage of any SHM system is the sensing system, which is traditionally composed of transducers and data acquisition hardware. However, such hardware is often heavy, bulky, and difficult to install in situ. Furthermore, physical access to the structure being monitored may be limited or restricted, as is the case for rotating wind turbine blades or unmanned aerial vehicles, requiring wireless transmission of sensor readings. This study applies a previously developed compact wireless sensor node to structural health monitoring of rotating small-scale wind turbine blades. The compact sensor node collects low-frequency structural vibration measurements to estimate natural frequencies and operational deflection shapes. The sensor node also has the capability to perform high-frequency impedance measurements to detect changes in local material properties or other physical characteristics. Operational measurements were collected using the wireless sensing system for both healthy and damaged blade conditions. Damage sensitive features were extracted from the collected data, and those features were used to classify the structural condition as healthy or damaged.
Download or read book Structural Dynamics and Renewable Energy Volume 1 written by Tom Proulx and published by Springer Science & Business Media. This book was released on 2011-06-21 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Collection embraces Structural Dynamics and Renewable Energy into more than 50 categories, including Shock and Vibration, Damping in Solids, Nonlinear Modeling, Structural Health Modeling, Structural Dynamics, and Rotating Machinery. This the first volume of the five-volume set brings together 34 chapters on Structural Dynamics and Renewable Energy.
Download or read book Wireless Health Monitoring and Improvement System for Wind Turbines written by Suratsavadee Koonlaboon Korkua and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind power has become the world's fastest growing renewable energy resource. The world-wide wind power installed capacity has exceeded 120 GW. The United States has set a target of 20% wind-based electricity generation, over 300 GW, by 2030. As wind power is growing towards becoming a major utility source, it is urgent to guarantee the reliable operation of wind power systems. To avoid unexpected equipment failures, the focus in most wind farm is shifting from scheduled preventive maintenance to predictive maintenance. Predictive maintenance by condition-based monitoring of electrical machines is a scientific approach that is becoming a new strategy for maintenance management. Vibration analysis is also a measurement tool used to identify, predict, and prevent failures in rotating machinery. Implementing vibration analysis will improve the reliability of the machine and lead to better machine efficiency, reducing downtime by eliminating unexpected mechanical or electrical failures. Traditionally, monitoring systems are implemented as in wired systems formed by communication cables and various types of sensors. The cost of installation and maintenance such a system is more expensive than the cost of the sensors themselves. To overcome the restrictions of wired networks, using wireless system for monitoring is proposed. A wireless sensor network is a new control network that integrates the sensors, and embedded computer, wireless communication, and intelligent processing technology. ZigBee is a new wireless networking technology with low power, low cost, and short time-delay characteristics. Compared with other similar standards such as Bluetooth, it tends to provide each single device lower complexity and cost. Based on ZigBee network communication technology, the system can deal with the various operating parameters of remote transmission, real-time data collection, and real-time health monitoring systems. Moreover, ZigBee wireless technology enables the identification of the location of each node under the network with several types of positioning algorithms. This study presents and develops a ZigBee based wireless sensor network for machine health monitoring of induction machines. The three-axis vibration signals obtained from the monitoring system are then processed and analyzed with signal processing techniques. The vibration detection techniques with suitably modified algorithms are used to extract information for an induction machine health diagnostic. The severity level of abnormality and the remaining usable life are also explored. The goal for this research is not only to monitor the machine health of wind turbine system, but also to develop a control method for doubly-fed induction generators (DFIG) that addresses the issues associated to the rotor imbalance condition of the generator. Rotor imbalance is a mechanical disturbance related problem. It is a condition where there is more weight distributed on one side of a rotating part of the rotor than on the other side. It might be caused by wind wheel unbalances, shaft imbalances, or mechanical looseness. This kind of event will directly cause oscillation on the output signal of the generator such as generated output power, current, and voltage. The proposed control method will improve the performance of the DFIG control system by reducing the oscillation of the generator output and allowing the system to operate during the slightly unbalanced condition. To suppress the vibration and minimize the oscillation of the generated output, in addition to reducing the stresses on the wind turbine, the rotor side inverter controller is designed and tested by way of a digital simulation on the Matlab/Simulink platform. The wireless health monitoring system for wind turbine based on vibration detection shows the validity and distinct advantages in such a condition based monitoring system. The severity level of rotor imbalance is successfully estimated by using machine vibration analysis. Moreover, the systematic control design of the proposed vibration suppression by means of a rotor side inverter controller is explored and discussed. The real wind speed data of four different cases from the ERCOT system were used as input to test the performance and capabilities of the control scheme. The simulation results of the generator output show the effectiveness of this proposed rotor side inverter controller. It effectively reduces the oscillation of power, current, and torque output of the DFIG wind turbine.
Download or read book Design of an Intelligent Embedded System for Condition Monitoring of an Industrial Robot written by Alaa Abdulhady Jaber and published by Springer. This book was released on 2016-09-08 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis introduces a successfully designed and commissioned intelligent health monitoring system, specifically for use on any industrial robot, which is able to predict the onset of faults in the joints of the geared transmissions. However the developed embedded wireless condition monitoring system leads itself very well for applications on any power transmission equipment in which the loads and speeds are not constant, and access is restricted. As such this provides significant scope for future development. Three significant achievements are presented in this thesis. First, the development of a condition monitoring algorithm based on vibration analysis of an industrial robot for fault detection and diagnosis. The combined use of a statistical control chart with time-domain signal analysis for detecting a fault via an arm-mounted wireless processor system represents the first stage of fault detection. Second, the design and development of a sophisticated embedded microprocessor base station for online implementation of the intelligent condition monitoring algorithm, and third, the implementation of a discrete wavelet transform, using an artificial neural network, with statistical feature extraction for robot fault diagnosis in which the vibration signals are first decomposed into eight levels of wavelet coefficients.
Download or read book Fifth European Workshop on Structural Health Monitoring 2010 written by Fabio Casciati and published by DEStech Publications, Inc. This book was released on 2010 with total page 1425 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wind Turbines written by Erich Hau and published by Springer Science & Business Media. This book was released on 2005-12-12 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind Turbines addresses all those professionally involved in research, development, manufacture and operation of wind turbines. It provides a cross-disciplinary overview of modern wind turbine technology and an orientation in the associated technical, economic and environmental fields. It is based on the author's experience gained over decades designing wind energy converters with a major industrial manufacturer and, more recently, in technical consulting and in the planning of large wind park installations, with special attention to economics. The second edition accounts for the emerging concerns over increasing numbers of installed wind turbines. In particular, an important new chapter has been added which deals with offshore wind utilisation. All advanced chapters have been extensively revised and in some cases considerably extended
Download or read book TinyOS Programming written by Philip Levis and published by Cambridge University Press. This book was released on 2009-03-12 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate guide for programmers needing to know how to write systems, services, and applications using the TinyOS operating system.
Download or read book Wireless Sensor Networks for Healthcare Applications written by Terrance J. Dishongh and published by Artech House. This book was released on 2010 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique reference focuses on methods of application, validation and testing based on real deployments of sensor networks in the clinical and home environments. Key topics include healthcare and wireless sensors, sensor network applications, designs of experiments using sensors, data collection and decision making, clinical deployment of wireless sensor networks, contextual awareness medication prompting field trials in homes, social health monitoring, and the future of wireless sensor networks in healthcare.
Download or read book Rotating Machinery Structural Health Monitoring Shock and Vibration Volume 5 written by Tom Proulx and published by Springer Science & Business Media. This book was released on 2011-03-24 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rotating Machinery, Structural Health Monitoring, Shock and Vibration, Volume 5 Proceedings of the 29th IMAC, A Conference and Exposition on Structural Dynamics, 2011, the fifth volume of six from the Conference, brings together 35 contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Rotating Machinery, Structural Health Monitoring, as well as Shock and Vibration, along with other structural engineering areas.
Download or read book Structural Health Monitoring of Wind Turbine Blades written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ACME Wind Turbine Corporation has contacted our dynamic analysis firm regarding structural health monitoring of their wind turbine blades. ACME has had several failures in previous years. Examples are shown in Figure 1. These failures have resulted in economic loss for the company due to down time of the turbines (lost revenue) and repair costs. Blade failures can occur in several modes, which may depend on the type of construction and load history. Cracking and delamination are some typical modes of blade failure. ACME warranties its turbines and wishes to decrease the number of blade failures they have to repair and replace. The company wishes to implement a real time structural health monitoring system in order to better understand when blade replacement is necessary. Because of warranty costs incurred to date, ACME is interested in either changing the warranty period for the blades in question or predicting imminent failure before it occurs. ACME's current practice is to increase the number of physical inspections when blades are approaching the end of their fatigue lives. Implementation of an in situ monitoring system would eliminate or greatly reduce the need for such physical inspections. Another benefit of such a monitoring system is that the life of any given component could be extended since real conditions would be monitored. The SHM system designed for ACME must be able to operate while the wind turbine is in service. This means that wireless communication options will likely be implemented. Because blade failures occur due to cyclic stresses in the blade material, the sensing system will focus on monitoring strain at various points.
Download or read book Wireless Sensor Networks for Structural Health Monitoring written by Jiannong Cao and published by Springer. This book was released on 2016-02-08 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief covers the emerging area of wireless sensor network (WSN)-based structural health monitoring (SHM) systems, and introduces the authors’ WSN-based platform called SenetSHM. It helps the reader differentiate specific requirements of SHM applications from other traditional WSN applications, and demonstrates how these requirements are addressed by using a series of systematic approaches. The brief serves as a practical guide, explaining both the state-of-the-art technologies in domain-specific applications of WSNs, as well as the methodologies used to address the specific requirements for a WSN application. In particular, the brief offers instruction for problem formulation and problem solving based on the authors’ own experiences implementing SenetSHM. Seven concise chapters cover the development of hardware and software design of SenetSHM, as well as in-field experiments conducted while testing the platform. The brief’s exploration of the SenetSHM platform is a valuable feature for civil engineers designing their own similar SHM products, and the various concrete examples of problem formulation and algorithm design will make this an essential read for practitioners, researchers and students alike.
Download or read book Intelligence of Things Technologies and Applications written by Ngoc-Thanh Nguyen and published by Springer Nature. This book was released on 2022-08-22 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the First Conference on Intelligence of Things (ICIT 2022), held in Hanoi, Vietnam, in August 2022. A total of 40 full papers in this book have been rigorously peer-reviewed and selected from over 100 submissions. The papers focused on the intelligence of things (AIoT) studies are organized in the following parts: theoretical intelligence analyses, intelligence services and applications, and intelligence service experiments. This book provides interested students and engineers with comprehensive and cutting-edge studies in the fields.
Download or read book Structural Health Monitoring written by Daniel Balageas and published by John Wiley & Sons. This book was released on 2010-01-05 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is organized around the various sensing techniques used to achieve structural health monitoring. Its main focus is on sensors, signal and data reduction methods and inverse techniques, which enable the identification of the physical parameters, affected by the presence of the damage, on which a diagnostic is established. Structural Health Monitoring is not oriented by the type of applications or linked to special classes of problems, but rather presents broader families of techniques: vibration and modal analysis; optical fibre sensing; acousto-ultrasonics, using piezoelectric transducers; and electric and electromagnetic techniques. Each chapter has been written by specialists in the subject area who possess a broad range of practical experience. The book will be accessible to students and those new to the field, but the exhaustive overview of present research and development, as well as the numerous references provided, also make it required reading for experienced researchers and engineers.
Download or read book European Workshop on Structural Health Monitoring written by Piervincenzo Rizzo and published by Springer Nature. This book was released on 2022-06-18 with total page 933 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume gathers the latest advances, innovations, and applications in the field of structural health monitoring (SHM) and more broadly in the fields of smart materials and intelligent systems, as presented by leading international researchers and engineers at the 10th European Workshop on Structural Health Monitoring (EWSHM), held in Palermo, Italy on July 4-7, 2022. The volume covers highly diverse topics, including signal processing, smart sensors, autonomous systems, remote sensing and support, UAV platforms for SHM, Internet of Things, Industry 4.0, and SHM for civil structures and infrastructures. The contributions, which are published after a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaboration among different specialists.
Download or read book Sensor Technologies for Civil Infrastructures written by Jerome P. Lynch and published by Woodhead Publishing. This book was released on 2022-07-19 with total page 726 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sensor Technologies for Civil Infrastructure, Volume 2: Applications in Structural Health Monitoring, Second Edition, provides an overview of sensor applications and a new section on future and emerging technologies. Part one is made up of case studies in assessing and monitoring specific structures such as bridges, towers, buildings, dams, tunnels, pipelines, and roads. The new edition also includes sensing solutions for assessing and monitoring of naval systems. Part two reviews emerging technologies for sensing and data analysis including diagnostic solutions for assessing and monitoring sensors, unmanned aerial systems, and UAV application in post-hazard event reconnaissance and site assessment. - Includes case studies in assessing structures such as bridges, buildings, super-tall towers, dams, tunnels, wind turbines, railroad tracks, nuclear power plants, offshore structures, naval systems, levees, and pipelines - Reviews future and emerging technologies and techniques including unmanned aerial systems, LIDAR, and ultrasonic and infrared sensing - Describes latest emerging techniques in data analysis such as diagnostic solutions for assessing and monitoring sensors and big data analysis
Download or read book Wireless Sensor Networks written by Fadi Al-Turjman and published by CRC Press. This book was released on 2018-01-03 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless Sensor Networks overcome the difficulties of other monitoring systems. However, they require further efficiencies for Outdoor Environment Monitoring (OEM) applications due to their harsh operational conditions, huge targeted areas, limited energy budget, and required 3D setups. A fundamental issue in defeating these practical challenges is deployment planning. The deployment plan is a key factor of many intrinsic properties of OEM networks, summarized in connectivity, lifetime, fault-tolerance, and cost-effectiveness. This book investigates the problem of WSNs deployments that address these properties in order to overcome the unique challenges and circumstances in OEM applications.
Download or read book Material Integrated Intelligent Systems written by Stefan Bosse and published by John Wiley & Sons. This book was released on 2017-11-22 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining different perspectives from materials science, engineering, and computer science, this reference provides a unified view of the various aspects necessary for the successful realization of intelligent systems. The editors and authors are from academia and research institutions with close ties to industry, and are thus able to offer first-hand information here. They adopt a unique, three-tiered approach such that readers can gain basic, intermediate, and advanced topical knowledge. The technology section of the book is divided into chapters covering the basics of sensor integration in materials, the challenges associated with this approach, data processing, evaluation, and validation, as well as methods for achieving an autonomous energy supply. The applications part then goes on to showcase typical scenarios where material-integrated intelligent systems are already in use, such as for structural health monitoring and smart textiles.
