SOUND INSULATION STRUCTURE OF SONAR DOME

PURPOSE: To improve a sound insulation wall used to shut out a noise transmitted into a sonar dome especially from the inside of a ship in the sound insulation structure of the sonar dome equipped at the bottom part of the ship. CONSTITUTION: A sound insulation wall 6 is constituted in such a way th...

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Bibliographische Detailangaben
Hauptverfasser:	UCHIJIMA KENICHI, HOKODATE TATSUYA, KOGA TAKASHIGE
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES TESTING
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Beschreibung
Zusammenfassung:	PURPOSE: To improve a sound insulation wall used to shut out a noise transmitted into a sonar dome especially from the inside of a ship in the sound insulation structure of the sonar dome equipped at the bottom part of the ship. CONSTITUTION: A sound insulation wall 6 is constituted in such a way that many sound insulation blocks 1 are spread all over along the outer board face of a hull recessed outer board 7 which partitions a sonar dome 11 under the surface of the water. Every sound insulation block 1 is composed of a rubber wall or the like so as to be of a flexible hollow type. The initial pressure of a gas which is sealed up in its interior is set so as to be increased according to a water depth position in which every block 1 is installed. Thereby, even when the flexible wall part is pressed at the use of the block, a required gas layer thickness is held, and it is possible to ensure the sufficient sound insulation performance of a sound insulation structure.