Performance analysis of typical dynamic equipment systems for vessels based on cylinder shell sections
Double-layer isolation systems are widely applied in vehicles,vessels,and mechanical industries.Vibrations of shipbuilding machinery are transmitted to the hull structure via the isolation device,then radiated into underwater noise.A typical dynamic equipment double-layer isolation system model based on the cylinder shell section of submarines is estab-lished,and the influence rules of float structure and base structure parameters on the isolation performance of the isolation system are studied.Research results:the float structure has a significant effect on the dynamic equipment isolation perform-ance of the cylinder shell section at certain frequencies.The installation of an anti-vibration structure can further improve the isolation performance of the system.After installing anti-vibration mass,the average wave level difference of the isolation system increased by 0.2 dB in the 0～1000 Hz frequency band.The appropriate anti-vibration mass installation location can improve the system's isolation performance by up to 7.3 dB between 900 and 1 000 Hz.These research results can provide reference for the design of ship's dynamic equipment.
double-layer isolation systemcylinder shell compartmentrise level differenceanti-vibration mass
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