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Health Monitoring of Structural Materials and Components: Methods with Applications. Author(s). Douglas E. Adams. First published April. The book presents a suite of methods and applications in loads identification ( usage Health Monitoring of Structural Materials and Components is an excellent.
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The shop is also responsible for any discounts they wish to offer. Omenzetter , D. Van Der A. Risers are crucial components in offshore production systems, and failure of a riser can potentially cause catastrophic damage to the environment and significant loss of production. The early identification of damage in a riser is essential to prevent failure from occurring, and vibration-based structural health monitoring SHM methods may be a viable means of achieving this.
This study seeks to determine if there is merit to the application of vibration-based SHM methods to identify damage in top-tensioned risers under wave loading. To that end, two SHM methods are proposed and applied to experimental data obtained from a riser model placed in a wave flume with damage simulated as pre-tension loss. The proposed methods utilize the shift of the first natural frequency of the riser for damage identification.
In the first method, the natural frequency is obtained from a frequency response function relating the water surface elevation and acceleration response of the riser model. In the second method, an ambient response analysis method is applied. Both methods are able to identify the natural frequency shifts and there is potential for detection and severity assessment of damage.
The architecture of structure and environment friendly SHM systems looks very promising for the first time, and is about to disrupt the old-fashion inspection and monitoring forever. In addition to the above two installation types, there is also an installation technique to overcome the major issues related to pre-determining effective frequency bands for the piezoelectric-based SHM, namely a piezoelectric-based smart interface. Park et al. Inman  and others are uses for more precise detection tools. Water Resour. By following these steps, apart from simple structure such as axial rods , beams , thin plates , shell  and framed structure , experimental implementation of the SHM techniques can be applied on several complex structures. Caltrans Bridge Research Conference
Experimental ambient vibration-based structural health monitoring in top-tensioned risers. Using SHM systems mean collecting a large amount of data in real-time. Analysis and interpretation of test results has remained a challenging issue. It is specially challenging to identify data related to changes in the environment, from those that are from defects in structural components.
Decision making based on this data requires special set of skill. Recent advancements in sensing technology i. MEMS, Acoustic sensors, fiber optics and latest developments in the Internet of Things IoT , mobile networks 5G , and wireless connectivity Wi-Fi, Bluetooth 5 are finally creating a promising platform for the inspection and evaluation of structural systems.
SHM systems based on these new technologies have the potential to collect precise information about every event and pave the way to create proactive maintenance systems. The architecture of structure and environment friendly SHM systems looks very promising for the first time, and is about to disrupt the old-fashion inspection and monitoring forever.
Sign up to our Newsletter and receive the latest blog posts from our knowledge centre, and updates on our novel technologies. I was not aware that can identify any damage that might occur to an infrastructure.
It makes sense that the SHM system can lead to proactive maintenance systems. As you mentioned the current method of fixing the problems when they already did damage is not a cost-effective strategy. Agree with you.
No doubt it is greatly rewarding to monitor and find out what is going on in a structure during its lifetime, rather than wait until mishaps already took place. This is definitely an extremely required system but only for vital and important projects. I think the lack of popularity of these systems is because the project Owners and the Designers of such projects are not aware of their existence!
Also I think the high cost of these equipment shall only come down when more orders come in! Good luck for you in your effort to educate the public. Your email address will not be published.