SHM in Action: How SHM works in practice


Participate to win:
The Most Practical SHM Solution for Aerospace Award
The Most Practical SHM Solution for Civil Infrastructures Award



Each participant may have a demonstration of up to 5 minutes. The time limit will be strict. Also, there will be a 2 minute interval for the stage set-up between the demonstrations. Complete the form here to signup.

A short description of the demo is required. More information about SHM in action is given below.

The following companies/institutions have been selected to present in SHM in Action:

8tree 8tree will demonstrate two different patented surface inspection products that perform Fastener-Flushness inspection and Dent-Mapping. The aerospace manufacturing and aircraft maintenance industries have begun broad adoption of these products in the manufacturing and shop-floor environments. These two SHM products are designed to empower the operator/mechanic to perform instant ‘go/no-go’ structural health inspections with reliably consistent results each time, every time. These products were previously featured in their prototype-stage at IWSHM 2013.
Acellent Acellent will present our proven end-to-end approach to design, manufacturing and deployment of SMART Layers solutions for applications ranging from aerospace to pipelines. We will showcase our capability for the complete gamut of damage detection - detection, localization, quantification/sizing and characterization. We will demonstrate (1) our IMGenie passive impact monitoring system to provide the location, force and time of impact events in real-time, (2) our ScanGenie active monitoring hardware with SHM Composite software and SMART Layer sensor network to detect, localize and quantify damage. Finally, we will introduce to you our new ³STAR HELPER² designed by Acellent!
Advitam Structural health monitoring applications are often discussed but rarely shown in use. This demonstration will utilize a structural model to help the audience visualize how various sensor types can be used to collect live information on a structure. In addition to viewing real time movements and numerical data for vibration and strain, graphical representations can be produced automatically to provide a visual of the phenomena acting on the bridge. An alert system can also be implemented in case of critical responses and will be demonstrated.
Ambher Monitoring Systems LLC Our application consists of a web interface that allows you to monitor civil structures such as buildings, offshore structures and bridges in a very simple way. We design each SHM system according to the clients’ needs based on complexity of the structure and the client requirements. Our goal is to offer a cost effective solution with budgets under $1,000 USD per month that include the web interface and the sensors lease.
AVNIK Defense Solutions, Inc. AVNIK has a track record of applying an optimal-sensor-placement-strategy to structures, and is tasked with designing a Structural Health Monitoring (SHM) system for damage detection and localization. In this presentation, AVNIK is partnered with the US Army to pull in on-platform sensor parametric readings and performs a series of calculations to conduct localization of the damage that was detected. The damage location information is mapped onto a 3D finite element model (FEM) of the subject structure being analyzed. The FEM model is displayed with a heat map highlighting where damage is located. Users have the freedom to change the orientation view of the FEM model to more accurately identify the damage location. The advantage of our localization technology is an automated system to ‘see’ hidden damage behind a structure without tearing the platform apart.
Columbia University A crowdsourcing-based, SHM-oriented smartphone application, namely, Citizen Sensors for SHM (CS4SHM) is demonstrated. The demonstration includes vibration measurement from a small-scale structural model, wireless data submission to the web server, and viewing the identification results online. CS4SHM enables users to collect vibration data from smartphone sensors, extract the time history in text format, and submit the data via a web view connected to an online server. The vibration time history received by the server is automatically processed from the time to the frequency domain via Discrete Fourier Transform (DFT). In this way, the server determines the peak frequency and stores the results as well as the raw input data for further post-processing uses. Monitoring the modal identification results over time allows users to notice changes in dynamic characteristics of a structure.
IN-DEUS Within the Indo-German IN-DEUS project we are establishing a simulation platform for the design of optimized ultrasonics based SHM-systems for any arbitrary structural components. Starting from a CAD design and loads applied, stresses and strains are simulated, fatigue damage including the locations where cracks will start to initiate and propagate are determined, and a conventional NDT process can be simulated as an option. Finally any transducer network can be placed by simulation around a crack to be monitored on the structural component considered and the behaviour of the resulting SHM system can be simulated in real time.
Kinemetrics Open Systems & Services Our demonstration consists of a short presentation describing the recently completed commercial project on implementation of an Emergency Management and Business Continuity Plan for two iconic buildings in Dubai; Dubai World Trade Center and Burj Khalifa. To illustrate the process, a 1/300 scale of the Burj Khalifa is instrumented and excited by a small shake table while real-time data processing and live display is presented, capped off with the automatic generation of SAFE Report; the key tool that bridges the gap between SHM technology/data and non-technical decision makers. Our objective is to empower onsite personnel to confidently recognize potentially unsafe conditions, make rapid safety assessments, and ultimately make the right decisions on evacuation and re-entry.
Luna Luna Innovations’ ODiSI product platform uses high definition fiber optic sensing (HD-FOS) to make real time strain and temperature measurements. The advanced capabilities of the ODiSI will be demonstrated with a single telecom grade optical fiber that is both surface bonded and embedded in a carbon fiber composite panel. Strain data is collected every 625 microns along the fiber. As the carbon fiber beam is cantilevered, the full field strain profile shows higher strain gradients around rivet holes, demonstrating the ability to detect potential defects and failure points. Distributed data provided by the fiber shows tremendous detail about the composite structure. Mapping Luna’s high resolution strain data onto a 3D model demonstrates the ability to HD-FOS for 3D visualization, FEA model comparison, detection of crack initiation and other damage not visible through inspection. Fibers embedded within the structure can also provide valuable information regarding residual strains.
Metis Design The Metis Design Corporation (MDC) will demonstrate the capabilities of its latest MD7-Pro Digital SHM system on a complex aerospace structure. Both passive Acoustic Emission (AE) and active Guided Wave (GW) approaches will be shown for detection of impact events and damage on a composite bonded/bolted skin/spar configuration. PZT actuators and sensors bonded to spar will make use of beamforming algorithms to localize the damage in the skin, with all the hardware being bonded to the structure within lightweight digital nodes. This self-contain demonstration is representative of a system being developed for fielding in UAV structures.
National ICT Australia National ICT Australia (NICTA) have developed a large scale structural health monitoring system for the Sydney Harbour Bridge. The systems consists of 2400 sensors and uses several data analysis techniques including machine learning classifiers to monitor health of the structure. Research and development continues into both data driven predictive analysis and integration of data science with engineering numerical modelling analysis. The demonstration will be of the web based application user interface as used by the bridge asset manager.
Optilab, LLC Optilab's demonstration will be 40KM Distributed FBG Sensing System for oil pipeline transport, railways, subways, geological events and seismology. The distributed sensing system will have a total of four Optilab rack-mountable FBG Sensor Interrogators (FSI) each with 18 channels to cover 40 km. Each FSI will have the capability to cover 10.8 km distance. The FSI covering the last 10 km will have a higher power SWL to achieve required signal to noise ratio and compensate the optical loss over the extended distance.
Resensys LLC The demonstration shows the most important features of Resensys SenSpot sensors, which is super fast and easy installation and high precision of SenSpot sensors in a live demo.
Smart Fibres ltd Smart Fibres is developing a quasi-distributed acoustic emission monitoring system based on fiber Bragg gratings (FBGs). It offers very high sensitivity detection of acoustic noise at multiple points on a single optical fibre attached to or embedded within a structure. This provides a capability for detecting and locating matrix cracking in complex composite structures, or cracking of metallic welded structures. Other applications for the technology include flow monitoring, equipment condition monitoring, and leak detection. Unlike alternative piezo or fibre-laser based measurement approaches, the sensors are simple to install/embed and multiplex, the system can be ATEX certified for explosive atmospheres, and the equipment is suited to development for flight use. In this presentation, the sensing concept will be introduced, and a live demonstration will be made of the prototype system’s ability to identify and locate miniature acoustic emission events.
Smart Structures and Systems (SSS) Lab Among various LNG carrier types, Mark III type membrane LNG carrier is one of the most popular LNG carrier types. The storage tank of LNG carrier is made of two-level barriers. The Primary barrier is made of stainless steel (SUS) and the secondary barrier, called triplex layer. During the installation of triplex layers, hidden air voids can be formed within bonding layer of the triplex. An autonomous mobile inspection system (AMIS) which can detect, locate and quantify hidden voids in triplex bonding layers using active lock-in thermography is presented.
Structures and Composites Laboratory, Stanford University The Structures and Composites Lab (SACL) will demonstrate a novel “fly-by-feel” smart UAV wing technology with high-resolution state sensing and awareness capabilities. Micro-fabricated sensor networks, including piezoelectric, strain, and temperature sensors, are designed and embedded in the layup of a composite wing. Real-time signal processing and diagnostic algorithms are employed to accurately interpret the sensing data and identify the wing configuration and structural health state. A live video connection will be established with the Stanford wind tunnel and data from the wing will be collected and processed in real time. The designed software provides the wing configuration, stall and flutter monitoring and detection, and on-line active sensing SHM.
VCE Innovation Services The data collected by our monitoring systems are analysed for parameter extraction. In a next step key performance indicators are selected which are monitored online and in real-time. They form the basis for decision making after an event. The demonstration will show two applications. The first one is monitoring the pushing operation of a 33.000 ton steel bridge in Turkey with certain displacement thresholds. The second case is a bridge of the Taiwan High speed Railways where an earthquake has hit and was recorded by the permanent SHM system. The risk analysis identifies the hazard and automatically stops the train traffic in case those thresholds are exceeded. It is desired to open the line as quick as possible for which an online assessment based on monitoring data will be used.


Who can participate:

  • workshop exhibitors
  • workshop presenters
  • workshop participants

Objective:

To show how a structural health monitoring (SHM) system practically works. This presentation can be additional to exhibits or oral presentations and is specifically targeted to underline the practical aspect of the SHM.


Motivation:

There is significant recent progress in SHM technology for a variety of applications. These presentations will focus on how these SHM systems work in practice in terms of installation, handling, interpretation, and robustness for the following applications:

  • operational loads monitoring
  • damage detection
  • health monitoring
  • life cycle management

The session targets:

  • showing the audience how SHM works in practical applications
  • better understanding the practical issues of different SHM systems
  • getting further feedback and requirements expressed from current and potential SHM users
  • letting SHM users to share their experience

Procedure:

The session intends to show as much of demonstration cases as possible, addressing as many of the aspects mentioned below:

  • the way the monitoring system and the test is operated;
  • type of sensors and actuators (if required) and their way of attachment to components, linkage to the signal generation and acquisition unit, etc.;
  • signal generation and acquisition unit as a hardware and how it operates;
  • the way input data are entered and sensor data are received and how the result is presented during the test;
  • procedure for sensor signal processing;
  • the 'man-machine interface' such as data input and output display;
  • component(s) tested, area/volume to be monitored, loading procedure and the damage initially observed by conventional means of non-destructive testing;
  • characteristics of the system such as weight, size, volume, reliability, cost, etc.

Each presentation is allowed no more than 5 minutes via a video, internet or a hardware live demonstration only , which will be directly displayed to the audience on a large screen. It is mandatory that the SHM system is shown in action. Static displays are not acceptable and live demonstrations are preferred over videos. Each presentation will be followed by a brief Q&A session where the SHM demonstrators must answer questions from the audiences.


The test cases being presented can be either based on self-developed or purchased SHM systems. The source of the SHM hardware is eligible to be mentioned but no further advertisement from or about the supplier of the SHM system will be accepted.


Any detailed background of the SHM system and the testing can be provided through the manuscript in the workshop proceedings. Provision of a manuscript in the proceedings is however not mandatory. Exhibitors can provide a direct video link to their booth at the workshop such that demonstrations can be made from there and can be directly transmitted to the audience via a screen.