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Recently, a roll-on ship of the damping products of CSIC Shuangrui Rubber & Plastic Technology Co., Ltd. was used for the first-class ship airworthiness test. At the invitation of Wuhan Changjiang Ship Design Institute, Shuangrui Rubber and Plastics applied to the damping material. The hull structure vibration and noise levels were tested and evaluated.
Test data from the company, design institute and shipyard show that under the unfavorable factors such as high speed (20Kn), large main engine power (3700KW×2) and small main scale (90m length) of the ro-ro ship, the noise index of most areas of the hull remains Meet the requirements of IMO-A468 "Noise Noise Level Rules". In the key areas of damping laying, such as the position of the living compartment, the noise value is less than 55dB, which is much lower than the 60dB requirement of the indicator and achieves the expected design goal.
At the beginning of this year, Shuangrui rubber and plastic damping products were successfully introduced into the field of civil ships and applied to ro-ro ships with a cargo capacity of 500 tons. The ship damping material laying plan was first undertaken and completed by Shuangrui Rubber & Plastic Co., Ltd. Due to the strict weight limit (less than 10 tons) of the damping material, in order to ensure the best use of the least damping material, under the leadership of Dr. Wang Anbin, the national “Thousand Talents†scholar, the damping material laying plan is launched. Optimize design analysis. After optimization, the total weight of the damping material is not more than 7 tons.
This test is the first time that Shuangrui Rubber & Plastics damping products are applied to civilian ships. The acoustic test is carried out in the whole ship area for the first time. A large number of vibration and noise data under different navigation conditions are obtained, which provides valuable for the subsequent ship vibration reduction design and R&D. Reference materials. At the same time, the excellent vibration damping effect is of great significance to the expansion of the company's damping products in the civilian field and to seize the market.
