Samsung Heavy Industries announced that it has secured a technology to precisely analyze the underwater radiation noise of ships by analyzing the sound wave signals detected through sonar.
The sonar signal analysis technique is a technology that measures the intensity, direction, distance, etc. of noise by receiving the sound emitted by the noise source. Succeeded in precisely analyzing the cause of the noise of a 174,000㎥ class super-large LNG carrier.
Using this technology, Samsung Heavy Industries has been able to further strengthen its expertise in developing related technologies , such as segmentation and impact analysis of causes of underwater radiated noise for ships built using this technology, and forecasting noise by operation speed/draft.
Samsung Heavy Industries aims to advance noise reduction technology by expanding not only ship propellers but also underwater radiated noise from engines and machinery .
Underwater radiated noise of ships is caused by cavitation of propellers, hulls and machinery when ships are sailing, and can directly affect marine ecology such as marine mammals and fish.
Accordingly, the International Maritime Organization (IMO) is actively discussing regulations on radiated noise in the water, and the importance of noise reduction technology development is gradually increasing .
Lee Dong-yeon, director of Samsung Heavy Industries’ shipbuilding and marine research institute (executive director), said, ” SHI will minimize the impact on the marine environment based on its underwater radiated noise R&D capabilities and speed up the development of innovative technologies that can preemptively respond to the international community’s environmental regulations.”
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