Yokohama fenders, also known as pneumatic rubber fenders. They are fenders on vessels on ships that ensure a safe and smooth docking. In addition, Yokohama fenders reduce or eliminate damage caused to ships and offshore structures in ports. In order for these rubber fenders to function as high-quality infrastructure on a daily basis. Then, it is essential that the Yokohama fenders are properly maintained. Especially the maintenance of their appurtenances.
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Yokohama fenders are often exposed to extreme environments. It is therefore important that they are properly maintained and managed in a planned manner. This ensures that its functionality and service life are extended. In addition, to protecting the safety of assets and personnel. Yokohama fenders should be kept in optimal working condition by minimizing damage, accidental degradation, and ageing.
Therefore, we should perform regular maintenance and management of Yokohama fenders. This should include mechanisms for detecting rubber fender deterioration, facilitating technical inspections, and providing necessary countermeasures. Fundamentally, it must include the scope, timing, and frequency of detailed inspections, diagnostics, and corrective measures.
The damage patterns of Yokohama fenders vary according to the type. Common types of damage include the below.
It is important to detect and monitor the damage and deterioration of Yokohama fenders on a daily basis. This is to ensure that these ports and marine facilities will function properly for a long time. This can avoid undesirable situations caused by failures. The frequency of rubber fender inspections is as follows:
When the Yokohama fender installation is complete, the condition of the rubber fender as a unit and system should be evaluated. The best sequence of tests is to perform a single inspection followed by commissioning through trial mooring.
The corrosion of rubber fenders is assessed on a daily basis. The main purpose of the daily inspection is to detect any type and degree of damage or deterioration that may occur.
Periodic inspections and diagnostics are intended to determine the rate of deterioration of Yokohama rubber fenders. In addition, periodic inspections and diagnostics should be carried out systematically and continuously according to a pre-designed inspection program. This allows the effectiveness of corrective measures to be assessed and any serious problems to be planned for in advance.
Timely unscheduled inspections and diagnostics are conducted to confirm fender damage when the following conditions occur.
All Yokohama rubber fenders deteriorate over time due to the accumulation of aging and impacts. Measures to prevent degradation must be taken approximately once or twice during the life of the facility. It is critical to maintain the operational quality of the Yokohama fender. This is because deterioration in its quality and function may cause mooring operations to be suspended, resulting in losses.
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As far as the rubber body is concerned, most types of fenders are replaced by taking after-the-fact measures. This is because it is very difficult or expensive to take preventive measures. However, in the case of pneumatic fenders, checking air pressure, and repairing and reinforcing the rubber body are reasonable maintenance steps.
In addition to replacing monoblocs, rubber fenders can be repaired, reconfigured, or restricted in use where feasible. Appropriate measures can be implemented from a number of perspectives, including the degraded condition of the rubber fenders, facility relevance, and economic benefits.
Preventive maintenance methods, such as repairs, can be used when they are impractical or prohibitively expensive. If it is not possible to suspend port operations, it is necessary to rationalize replacement operations.
If the performance and durability of Yokohama fenders can be improved to an acceptable level. then repair or replacement is recommended. Generally, it is not possible to restore the function of the rubber body by repair or reinforcement. However, for pneumatic fenders, if technical knowledge is available. then repair or reinforcement is strongly recommended.
Swap the position of frequently used rubber fenders and infrequently used rubber fenders. If possible, the fenders can be adjusted. This allows the intact or strong parts of the fender to absorb more impact.
However, in the case of partial failure, changing the position of the fender may be considered. However, the potential safety impacts must be assessed for such measures.
Modify conditions such as the positioning of the vessel in the dock, berthing speed, and angle. This can reduce the severity of fender impacts. It is important to note that these solutions require technical knowledge and appropriate cooperation with all personnel involved. This can therefore be used as an emergency or temporary remedy, depending on the circumstances at the time.
Zhonghaihang Shipping Supply is a top marine equipment supplier from China. We mainly provide different types of pneumatic fenders, marine airbags, foam fenders for designing and manufacturing.
In addition, Zhonghaihang Shipping Supply can be customized according to your needs. If you have any questions, please do not hesitate to contact us.
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