マリンエンジニアリング
Online ISSN : 1884-3778
Print ISSN : 1346-1427
ISSN-L : 1346-1427
技術資料
エンジンとZ ペラ推進器が船舶の騒音に及ぼす影響及びその低減手法の評価に関する研究
田代 大和井桁 正樹鹿窪 勇太三浦 信之
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ジャーナル フリー

2015 年 50 巻 2 号 p. 164-169

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Recently, the reduction of ship noise and underwater radiated noise has become animportant issue. Engines and Z-pellers (azimuth thrusters) are considered as major sources of noise, and a quantitative evaluation of each sound source is required. In this paper, the contributions of engine and Z-peller were evaluated by noise and vibration measurement results in a hybrid tug ship. In order to predict the structure-borne noise level from the engine, an excitation force measurement was performed for both rigid and rubber-mounted engines. Underwater radiated noise emitted from the Z-peller was evaluated from cavitation noise tests using a water tank. In these tests, two types of Zpeller configurations were proposed, and the noise reduction effect was confirmed. Theresults are presented in this paper.

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© 2015 公益社団法人 日本マリンエンジニアリング学会
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