Vibration reduction structure applied to rocket tail end acoustic self-conduction array

Abstract

The invention provides a vibration reduction structure applied to a rocket tail end acoustic self-conduction array, and belongs to the technical field of acoustic array vibration reduction structural designing. The vibration reduction structure comprises an acoustic base unit, a base, vibration isolation rubber, compression springs, a sealing gasket and threaded rods. After the threaded rods penetrate through through holes formed in the acoustic base unit and the sealing gasket, an acoustic array unit is limited by the threaded rods on the inner surface of the base, and the sealing gasket guarantees that the interior of a sealed portion is in a sealed state. The compression springs are located between the bottom surface of the acoustic base unit and the inner surface of the base, and are in a compressed state, and the acoustic base unit has axial movement in the axial direction of the threaded rods. An outgoing line of the acoustic base unit goes out of a line through hole formed in the base. The vibration isolation rubber is arranged in the portion between the base and the acoustic array unit in a filled mode, so that sealing of the whole acoustic base unit is achieved. According to the invention, the purpose of reducing the influence of vibration noise of a rocket system on the working performance of the acoustic self-conduction array is achieved in a mode of horizontal and longitudinal united vibration reduction.

Description

technical field [0001] The invention relates to an acoustic self-guided basic array in the rocket-assisted precision guidance technology, in particular to the vibration reduction structure design of an acoustic self-guided basic array, and belongs to the technical field of acoustic self-guided array vibration reduction structure design. Background technique [0002] Rocket terminal acoustic self-guided technology 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 by the rocket engine seriously interfere with the reception of the target echo signal by the acoustic array, which seriously reduces the self-guided accuracy, and even cannot 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. SUMMARY OF THE INVENTION [0003] In view of this, t...

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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