Vibration and noise reduction device

Abstract

The invention discloses a vibration and noise reduction device which comprises an upper panel and a lower panel and further comprises a bar frame structure. The bar frame structure is fixedly connected between planes of the upper panel and the lower panel, the bar frame structure is constructed through hollow bars, and solid particles are filled in the hollow bars. The vibration and noise reduction device has the advantages that the solid particles are filled in the hollow bars to sufficiently use spaces of the hollow bars, so that the vibration and noise reduction device is simple in structure, effectively improves the vibration reduction effect, and needs no extra spaces; transmitted vibration waves are changed and scattered through the bar frame structure to improve the vibration reduction effect of the vibration and noise reduction device; and system vibration energy is further consumed through mutual friction and collision among the solid particles filled in the hollow bars to improve the vibration reduction effect.

Description

technical field [0001] The invention relates to a vibration and noise reduction device for power equipment or devices. Background technique [0002] For ships, vibration and noise seriously affect their concealment and defense capabilities. Vibration and noise reduction is one of the main ways to improve ship concealment and combat effectiveness. The vibration reduction and noise reduction treatment of ships is not only considered in terms of comfort, but also focuses on improving the combat effectiveness of ships. Therefore, the purpose of ship vibration reduction and noise reduction is mainly: (1) to improve the concealment of ships, because the detection of underwater targets so far mainly uses underwater sound, and vibration reduction and noise reduction can not only reduce the radiation of its own ships Underwater sound can also reduce the interference to its own sonar, thereby improving its detection capability, both of which help to improve the concealment of the shi...

AI Technical Summary

Problems solved by technology

However, with the development of science and technology, people put forward higher and stricter requirements on the vibration isolation performance of the vibration isolation system. The traditional double-layer vibration isolation device can effectively isolate medium and high frequency vibrations, but it is not suitable for lower frequency vibrations. helpless

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