SHIP BERTHING IMPACT AND MARINE FENDER INTEGRITY MONITORING

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Ship berthing and mooring monitoring is a quite complex system that is also using different type of pneumatic-type or other types of fenders. This kind of systems normally consists of berth monitoring system including a mooring line load monitoring system, and a fender load monitoring system. The fender loads such as fender deflection and reaction force are calculated by measuring inner air pressure of the pneumatic fenders, which have unique characteristics in performance. Furthermore both loads for the mooring lines and the fenders can be used to estimate moored ship motions simultaneously. Failure of fender system can lead to great disasters and that is why it is important to constant structural health monitoring over the fender system and analyze received data in the real time.

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The Smart Marine Fender Integrity Monitoring Technology was developed by MS Systems OY through close collaborations between the world’s top marine monitoring experts and marine fender specialists and is based on the Fiber Bragg Grating (FBG) Optics sensor technology.

The Fiber Bragg Grating sensing systems is a spatial variation of the refractive index inside the core of an optical fiber. This variation is created by exposing the core to a periodic pattern of UV light with a defined energy. After this process the grating works as a wavelength selective mirror. At each position of the periodic index variation a small part of the light travelling along the fiber is reflected back. These small portions of reflected light are combined coherently to one large reflection.

MS Systems fiber optic sensing system provides accurate and complete information about actual infrastructure changes in real-time.

Our Smart Marine Fender Integrity Monitoring System, is a new advanced fender integrity monitoring technology, that revolutionizes harbor fendering with FBG sensors and smart software aided fender design weakness & imminent fender failure warnings, real time berthing accident and fender damage alarms, and berthing impact statistical utilities. The many new capabilities made possible by the invention of the new smart fender monitoring system will promote better berthing, extend fenders’ lifetime, and elevate harbor safety and maintenance standards.

storage tanks

Storage tank systems that do not have double walls or secondary containment pose a higher risk to the environment because, in the event of a leak or spill, product is released directly into soil and water. Once there, it can migrate over a considerable distance and cause extensive and long-term damage to the environment. If the system you operate or own has tanks, piping or sumps as described in the list below, then the leak detection and monitoring requirements apply to your installation.

  • - single-walled underground tanks
  • - single-walled underground piping
  • - aboveground tanks without secondary containment
  • - aboveground piping without secondary containment
  • - sumps (turbine, transition, dispenser or pump)


If petroleum products are introduced at any depth within the soil matrix, as in the case of leaks from underground storage tanks, natural weather and biodegradation processes are rendered less effective and the chances are increased that some of the petroleum product fractions may contaminate groundwater.


MS Python combines two different kind of technology (1) Distributed Fiber Optics Sensors (DTS) or Fiber Bragg Grating (FBG) sensor technology and (2) Acoustic Emission Sensors (AE). Both technologies that can be programed to work simultaneously or separately depending on each project requirements.

Recent developments of distributed optical fiber strain and temperature sensing techniques based on the Brillouin scattering effect promise to provide the best cost-effective tools allowing monitoring over hundreds of kilometers distances. Thus, using a limited number of very long sensors it is possible to monitor structural and functional behavior of flow lines with a high measured and spatial resolution at a reasonable cost.

REAL TIME FENDER INTEGRITY MONITORING SYSTEM

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Fender Damage Alarms

By monitoring fender movement range and static recovery posture, MS Gecko Smart Fender Integrity Monitoring System can detect permanent deformation of fender, fender panel permanent deformation, and fender restraining device damages.

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Ship Berthing Energy Amplitude Alarms

MS Gecko Fender Monitoring System calculates ship berthing energy amplitude, and generates alarms when berthing energy amplitude exceeds fender system design capacity

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Ship Berthing Impact Load Alarms

MS Gecko System monitors the combined instantaneous reaction load of all fender elastomers on the pier and generates alarms when it exceeds preset pier structural limit


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Fender Excessive Movement Alarms

MS Gecko Fender System monitors fender movements and generate alarms when excessive displacement (such as fender over compression), speed (such as berthing speed) or angle (such as berthing angle) is detected.

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Insufficient Fender Design Warnings

Our system automatically detects most common fender system design weaknesses. This allow preemptive fender design optimization be performed to avoid fender permanent damages and consequential damages on ship and dock structures.

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Imminent Fender Failure Warnings

By following long term fender deterioration trends, MS Gecko Fender Monitoring System can predict imminent fender failures due to natural deterioration, which allows preemptive fender maintenance be performed to minimize adverse influences of emergency fender maintenance.


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Historical Berthing Impact Distribution Graph

Visualization of berth historical ship impact statistics allows easy optimization of berth fender system design, through fender asset reconfiguration and redistribution according to the actual demands of the application.

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Historical Data Replay

The recorded historical fender movement and berthing impact data can be replayed on demand on the MS Gecko Fender Monitoring System, for fender design optimization or accident and damage investigation purposes.

FIBER BRAGG GRATING (FBG)
TECHNOLOGY

Fiber-optic sensors, mostly in the form of Fiber Bragg Grating (FBG) sensors, offer various important characteristics, such as EMI/RFI immunity, multiplexing capability and long-range. FBG sensors are unique from other types of fiber-optic sensors as the measured information is wavelength-encoded, which provides self-referencing and renders their signals less susceptible to intensity fluctuations. In addition, FBG optical sensors are reflective and can be interrogated from either end, providing redundancy to FBG sensing networks.

THE BENEFITS

MS Gecko Smart Fender Integrity Monitoring System will provide real-time data of external forces, temperature, design, construction and the crack of materials for different types of fender problems in real-time. You will get every piece of information you need to allocate the exact spot and identify the nature of the problem, so that you can make an informative decision.


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Fender Damage Alarms

By monitoring fender movement range and static recovery posture, MS Gecko Smart Fender Integrity Monitoring System can detect permanent deformation of fender, fender panel permanent deformation, and fender restraining device damages.

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Ship Berthing Energy Amplitude Alarms

MS Gecko Fender Monitoring System calculates ship berthing energy amplitude, and generates alarms when berthing energy amplitude exceeds fender system design capacity

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Ship Berthing Impact Load Alarms

MS Gecko System monitors the combined instantaneous reaction load of all fender elastomers on the pier and generates alarms when it exceeds preset pier structural limit


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Fender Excessive Movement Alarms

MS Gecko Fender System monitors fender movements and generate alarms when excessive displacement (such as fender over compression), speed (such as berthing speed) or angle (such as berthing angle) is detected.

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Insufficient Fender Design Warnings

Our system automatically detects most common fender system design weaknesses. This allow preemptive fender design optimization be performed to avoid fender permanent damages and consequential damages on ship and dock structures.

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Imminent Fender Failure Warnings

By following long term fender deterioration trends, MS Gecko Fender Monitoring System can predict imminent fender failures due to natural deterioration, which allows preemptive fender maintenance be performed to minimize adverse influences of emergency fender maintenance.

Data interpretation and diagnosis

  • System Identification
  • Structural model update
  • Structural condition assessment
  • Prediction of remaining service life

ELEMENTS OF MS GECKO’S MONITORING SYSTEM


ELECTRO-OPTICAL CONVERTER

SENSORS ON STRUCTURE

OPTICAL-ELECTRIC CONVERTER

DATA ACQUISITION SYSTEMS

DATA TRANSFER AND STORAGE MECHANISM

Data management

MS SYSTEMS SOFTWARE PACKAGE

Software is a critical component of any Smart Fender Integrity Monitoring System. Whether performing a portable test on a structure or deploying a long-term monitoring solution, consider your software application needs for data acquisition, data logging, real-time processing and control, communications, data visualization and reporting, and post-data processing and management.

Many new possibilities arise from the invention of MS Gecko Smart Fender Integrity Monitoring System, such as fender assets reconfiguration based on historical berthing impact distribution, or accident or damage investigation using historical data replay.



MS Systems is your trusted partner for monitoring instrumentation in all phases of a project ranging from system design, installation, commissioning and training.

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