structural health monitor Articles
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Structural health monitoring using adaptive LMS filters
A structure's level of damage is determined using a non-linear model-based method utilising a Bouc-Wen hysteretic model. It employs adaptive Least Mean Squares (LMS) filtering theory in real time to identify changes in stiffness due to modelling error damage, as well as plastic and permanent displacements, which are critical to determining ongoing safety and use. The Structural Health Monitoring ...
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GPR: a new tool for structural health monitoring of infrastructure
Abstract Recent developments in acquisition methodology, data acquisition systems, post-processing software, and the availability of user friendly high-frequency antennas have enabled the GPR user to generate accurate three dimensional images of the interior of concrete structures. Four case studies are discussed with emphasis on output that is readily understood by the non-specialist engineer. ...
By SewerVUE
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Monitoring and warning system - case study
TenCate GeoDetect is the first sensor enabled geotextile on the market to provide soil reinforcement, structural health monitoring and an early warning system into one package. Our “intelligent geotextile” is the first system designed specifically for geotechnical applications and offers a technical solution for monitoring geo-structures for changes in strain, temperature or the ...
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Structural Health Monitoring the S101 Highway Bridge, Austria - Case Study
The information described in this case study is by courtesy of the European research projects “Integrated European Industrial Risk Reduction System (IRIS)” and “Internet based Structural Monitoring System (ISMS)”. Special thanks to H. Wenzel (VCE), M. Döhler (Inria), L. Mevel (Inria) and C.E. Ventura (UBC). Objective 1 This case study demonstrates the use of the ...
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Damage detection utilising the artificial neural network methods to a benchmark structure
This paper discusses the damage identification using artificial neural network (ANN) methods for the benchmark problem set up by IASC-ASCE Task Group on Health Monitoring. A three-stage damage identification strategy for building structures is proposed. The BP network and probabilistic neural network (PNN) are employed for damage localisation and BP network for damage extent identification. Four ...
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Distributed monitoring on world longest Hong Kong - Zhuhai - Macao bridge - Case Study
The Dewesoft EtherCAT data acquisition devices have already become standard in distributed, industrial monitoring applications. But when we are talking about monitoring the HongKong - Zhuhai - Macao bridge, “distributed” word enters a new dimension. INTRODUCTION With a total length of 50 km, the Hong Kong-Zhuhai-Macao Bridge (HZMB) is regarded as the longest sea bridge in the world. ...
By DEWESoft
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Construction and Civil Infrastructures Monitoring Systems
Civil infrastructures are usually monitored through its whole life cycle. SHM (Structural Health Monitoring) technologies enable the estimation of the structural state and detection of structural change that affects the performance of a structure. Two discriminating factors in SHM are the time-scale of the change (how quickly the state changes) and the severity of the change. These factors ...
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Ping-ping, what’s that sound? Acoustic fiber optic technology helps identify problematic water mains
With the deteriorating state of many aging water mains found in cities across North America, urbanites are frequently witnessing unexpected plumes of water erupt as man-made geysers in their own metropolitan backyards. While natural geysers are awe inspiring, urban geysers are much less so, due to their destruction to property, roads and the environment. Because an uninterrupted water flow is ...
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Distributed Measurements Unlock the Future of Design
The next generations of materials and design will require sensing technologies that can monitor beyond the scope of point sensors such as thermocouples and strain gauges. New sensing platforms based on optical fibers can obtain spatially continuous, real time data, giving developers detailed insight across broad areas into how their materials and designs behave. Such systems also can sense ...
By Sensuron
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Singapore’s used water underground infrastructure to be monitored with Distributed Fiber Optic Sensing (DFOS) technology by fibrisTerre
Singapore’s Deep Tunnel Sewerage System The Deep Tunnel Sewerage System (DTSS) is a key part of the long-term Singapore’s used water system, which comprises a network of link sewers leading to two major tunnels (Phase 1 & 2) crisscrossing Singapore with three large water reclamation plants (WRP), as well as outfall pipes. DTSS uses deep tunnels to convey used water entirely by ...
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London Region Develops “Intelligent” Infrastructure for the HELP Clean Water Project
For progressive municipalities, forward thinking about infrastructure can pay huge dividends down the road. In London region, the HELP Clean Water Funding Initiative (Huron-Elgin-London Project Clean Water) was started to create sustainable water supply for a major population hub in Ontario. The project has been 11 years in the making, with ongoing technology-driven improvements planned for the ...
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Ping-Ping, What’s That Sound? Acoustic Fiber Optic Technology Helps Identify Problematic Water Mains
With the deteriorating state of many aging water mains found in cities across North America, urbanites are frequently witnessing unexpected plumes of water erupt as man-made geysers in their own metropolitan backyards. While natural geysers are awe inspiring, urban geysers are much less so, due to their destruction to property, roads and the environment. Because an uninterrupted water flow is ...
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