A vibration-damping structure applied to the acoustic self-guided array at the end of a rocket

Abstract

The invention discloses a damping structure applied to an acoustic self-guiding base array at the end of a rocket, and belongs to the technical field of acoustic base array vibration damping structure design. The vibration-damping structure includes the acoustic base unit, base, vibration-isolation rubber, compression spring, sealing washer and screw; the screw passes through the holes on the acoustic base unit and the sealing washer to limit the acoustic-based array unit in the base On the surface, the sealing gasket ensures that the interior of the sealing part is in a sealed state; the compression spring is located between the bottom surface of the acoustic base unit and the inner surface of the base and is in a compressed state, and the acoustic base unit has an axial movement along the axial direction of the screw; The lead-out line of the acoustic base unit is led out through the wire hole on the base; the vibration-isolation rubber is filled in the part between the base and the acoustic array unit to realize the sealing of the entire acoustic base unit. The invention realizes reducing the impact of rocket system vibration and noise on the working performance of the acoustic self-guiding array through the combined transverse and longitudinal damping mode.

Description

technical field [0001] The invention relates to an acoustic self-guiding base array in rocket boosting precision guidance technology, in particular to the vibration-reducing structure design of the acoustic self-guiding base array, and belongs to the technical field of sound-based array vibration-reducing structure design. Background technique [0002] Acoustic self-guidance technology at the end of rocket is the key technology in rocket-assisted precision guidance technology. During the propulsion process of the rocket engine, the propulsion noise and vibration noise generated seriously interfere with the acoustic matrix receiving target echo signals, seriously reducing the homing accuracy, and even making it impossible to track and locate the target. Therefore, it is particularly important to add a vibration and noise reduction structure between the acoustic array unit and the carrier. Contents of the invention [0003] In view of this, the present invention provides a ...

AI Technical Summary

Problems solved by technology

During the propulsion process of the rocket engine, the propulsion noise and vibration noise generated seriously interfere with the acoustic matrix receiving the target echo signal, seriously reducing the homing accuracy, and even making it impossible to track and locate the target

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