Monitoring the integrity of critical engineering structures is imperative for public safety, since early detection of structural failures can protect human life and property, significantly reduce maintenance costs and extend structure’s service life.
Structural Health Monitoring (SHM) offers effective and economically feasible solutions to assess the state of health of instrumented structures from measurable response quantities.
Ensyso utilizes various response parameters such as:
to evaluate the physical state of various structures including:
Steel / Concrete Bridges;
Ensyso’s SHM experts have been involved in multiple industry and academic projects and participated at several different monitoring campaigns.
SHM FOR SLAB BEAM BRIDGE AT TEXAS A&M UNV.
Ensyso Corp. and BeanAir GmbH entered a partnership to demonstrate their expertise, know-how and most recent technological capabilities via performing a structural health monitoring technology demonstration test which was performed at Texas A&M University’s Riverside Campus.The bridge was recently built as part of a high budget research effort performed in cooperation with the Texas Department of Transportation (TxDOT) and the Federal Highway Administration (FHWA). The objective of the research was to explore the use of slab beams that are used in a spread configuration for short span bridges and to provide appropriate design recommendations.
NONDESTRUCTIVE DAMAGE EVALUATION (NDE)
Changes in the physical properties of the structure (e.g., mass, damping, and stiffness) alter the response characteristics (e.g., acceleration, displacement, strain, etc.).
Ensyso developed set of rational procedures that leads to reliable relationships between damage indices and measurable response parameters. Utilizing the NDE algorithms presented by Ensyso, a wide variety of structures and sub-systems encountered in engineering practice in may be analyzed upon employing the proper response quantities.
Ensyso’s NDE algorithm is well suited for continuous heath monitoring irrespective of the type of vibration data available for analysis (e.g., accelerations, displacements, strains). The proposed NDE methodology is highly effective in determining the true location of damage even at the presence of a coarse sensor layout.
FIBER OPTIC SENSING FOR NDE
Ensyso partnered with Sensuron to develop a fully automated continuous health monitoring tool which enables local damage detection through the use of global vibration information. A system integration test was performed as the first step to achieve a complete NDE system. Sensuron's advanced FOS platform obtained spatially continuous strain data along the length of approximately 10 meters of fiber. Using the data provided by the sensor, Ensyso’s analysis software was able to detect the location and severity of the damage to the material. For more information about the NDE system and initial results, download the case study below.
SHAPE SENSING WITH FIBER OPTIC
Ensyso uses Sensuron’s state-of-the art fiber optic sensing utilities to calculate 2D and 3D shapes of various structural and mechanical components. Sensuron has teamed up with Nasa Armstrong Flight Research center to create a fiber optic sensing platform capable of providing this information in real time. Sensuron’s methodology involves the use of a continuous distribution of Fiber Bragg Gratings (FBGs) embedded within 70 micron diameter glass optical fibers coupled with very high performance digital signal processing.