SONAR DOME

To provide a sonar dome made of FRP which is advantageous for improving durability by alleviating concentration of stress in a spot at a boundary of a core material and a dome body during high speed navigation.SOLUTION: A sonar dome 14 includes a bead unit 16 with a core material 22 and a dome body...

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Bibliographic Details
Main Authors TANAKA TOMOSUKE, MATSUMOTO MASAHIKO, KATO ISATO
Format Patent
LanguageEnglish
Japanese
Published 15.09.2022
Subjects
AIRCRAFT CARRIERS
EQUIPMENT FOR SHIPPING
MINE-LAYING
MINE-SWEEPING
OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
SUBMARINES
TRANSPORTING
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Summary:To provide a sonar dome made of FRP which is advantageous for improving durability by alleviating concentration of stress in a spot at a boundary of a core material and a dome body during high speed navigation.SOLUTION: A sonar dome 14 includes a bead unit 16 with a core material 22 and a dome body 18 extending from the bead unit 16. The dome body 18 is composed to include an FRP plate 26A. The FRP plate 26A is wound around the core material 22 and folded back at the bead unit 16. A gap sealing rubber 30A for sealing a gap S made of a hard rubber and vulcanization-molded in a sectional form with its thickness gradually reducing as it separates from the core material 22 is arranged in the gap S formed between the core material 22 and a position where the FRP plate 26A is folded back from the core material 22.SELECTED DRAWING: Figure 3 【課題】高速航行時における芯材とドーム本体の境の箇所の応力集中を緩和し、耐久性を向上する上で有利なＦＲＰ製のソナードームを提供すること。【解決手段】ソナードーム１４は、芯材２２を有するビード部１６と、ビード部１６から延在するドーム本体１８を備える。ドーム本体１８はＦＲＰ製板２６Ａを含んで構成されている。ＦＲＰ製板２６Ａは、ビード部１６において芯材２２に掛装されて折り返されており、芯材２２と、芯材２２からＦＲＰ製板２６Ａが折り返される箇所との間に形成される隙間Ｓに、硬質ゴムからなり芯材２２から離れるにつれてその厚さが次第に減少する断面形状で加硫成型され隙間Ｓを閉塞する隙間閉塞用ゴム３０Ａが配置されている。【選択図】図３
Bibliography:Application Number: JP20210034529