A scientific research vessel with a floating raft damping system

Abstract

The invention discloses a scientific research ship with a raft vibration isolation system. The scientific research ship comprises a hull, the raft vibration isolation system is arranged at the bottomof an auxiliary machinery room in the hull, the raft vibration isolation system comprises an installing platform supporting frame, a plate body which is used for placing generation equipment is arranged on the installing platform supporting frame, the installing platform supporting frame is internally provided with a vibration isolation mechanism which is used for attenuating and absorbing the excitation force generated by the generation equipment of the supporting plate body, the top of the housing are provided with a detecting member which is used for detecting radial swinging displacement of a buffering rod body and a controller which can achieve automatic adjustment according to the actual situation in which vibration changes irregularly and impacting force is provided with multi-degree-of-freedom. The raft vibration isolation system has the advantages that the installing is convenient, the vibration isolation performance and sound isolation performance of shipborne equipment are improved, and the service life of the shipborne equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of ship equipment, in particular to a scientific investigation ship with a floating raft damping system. Background technique [0002] Mechanical vibration and noise are one of the main performance parameters of ships, and engine room power equipment is the main source of ship vibration and noise. With the rapid development of shipbuilding technology, vibration and noise reduction technology has attracted more and more attention. The noise generated by the vibration of mechanical equipment on ships brings many hazards to ships and greatly reduces the performance of ships. Ship noise mainly includes three major noise sources: mechanical noise, propeller noise, and hydrodynamic noise. Among them, when the ship is under electric propulsion, the mechanical noise accounts for about 70% of the total noise radiation when sailing at low speed. These noises mainly come from the vibration of the mechanical equipment ...

AI Technical Summary

Problems solved by technology

[0007] The above-mentioned vibration damping control device achieves the consumption of vibration energy on the transmission path and improves the vibration isolation performance and sound insulation performance of ship equipment, but there are still some deficiencies, for example, vibration damping can only be performed in the vertical direction, not It can effectively absorb and offset vibrations in different directions, and the device occupies a large area. For multiple groups of disturbance sources, multiple vibration reduction devices need to be installed, and the equipment that generates disturbance sources will affect the installation base of the hull when vibrating. Shock is unavoidable, and long-term vibration can easily lead to equipment damage. It is impossible to achieve real noise reduction by reducing vibration, and it is impossible to effectively absorb and weaken vibrations of different frequencies.

In view of the actual situation of irregular vibration changes and multiple degrees of freedom of impact force, automatic adjustment cannot be realized

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