A vibration damping device, a hydrophone and an underwater vehicle

Abstract

The invention discloses a vibration damping device, which comprises a first connection seat, a second connection seat, a shock absorber and a mounting hole, the first connection seat is provided with a first connection end and a first fixed end, and the second connection seat is provided with a first connection end and a first fixed end. The front part of the connecting seat has a second fixed end, and the rear part has a second connecting end in a ring structure. The second connecting end is integrally sleeved on the outside of the first connecting end and defines an annular space. The shock absorber is located in the ring In the space, the second connection end is connected to the first connection end through the shock absorber without loosening; the installation hole runs through the shock absorber. The invention also discloses a hydrophone equipped with the damping device and an underwater vehicle. There is no rigid connection in the vibration transmission path of the vibration damping device, which avoids the transmission of vibration through rigid connectors. Therefore, the present invention can be applied to occasions where it is required to weaken tangential vibration transmission, so that the product can adapt to the underwater environment and weaken The impact of the equipment's own noise on the instrument side.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic sensing, in particular to a vibration damping device, a hydrophone and an underwater vehicle. Background technique [0002] A hydrophone is a device that converts acoustic signals into electrical signals. It is widely used in underwater communication, detection, target positioning, and tracking. It is an important part of sonar. [0003] The hydrophone is usually used on the underwater vehicle. In practical application, the underwater vehicle will generate large vibration and noise during operation, which reduces the detection accuracy and working efficiency of the hydrophone. [0004] At present, there is no vibration damping device specially used for hydrophones and underwater vehicles. Most of the existing shock absorbers are used to support large equipment such as machine tools to meet the requirements of vibration and noise reduction of the equipment itself. Most of these shock a...

AI Technical Summary

Problems solved by technology

Most of the existing shock absorbers are used to support large-scale equipment such as machine tools to meet the needs of the equipment itself for vibration and noise reduction. Most of these shock absorbers mainly bear axial loads and cannot bear large tangential loads.

The shock absorber on the existing mechanical equipment cannot be applied to the underwater environment, and due to the limitations of its own structure, it cannot be used on hydrophones and underwater vehicles

Images