Large-capacity air gun combination design method and system for expanding low-frequency-band energy

By combining the bubble pulsation equation and bubble group coupling mechanism, adjusting the total volume, spacing and arrangement of the air gun array, designing a new low-frequency air gun combination, solving the problem that traditional air guns are difficult to generate efficient low-frequency energy in deep-sea exploration, and achieving efficient low-frequency performance improvement and marine ecological protection.

CN119647115AInactive Publication Date: 2025-03-18HARBIN ENG UNIV +1
2 Cites 0 Cited by

Patent Information

Application Number
CN202411744854.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-03-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Traditional air guns are difficult to generate efficient low-frequency energy in deep-sea exploration, and excitation under high-pressure conditions will increase high-frequency energy and cause harm to marine ecology.

Method used

By combining the bubble pulsation equation and bubble group coupling mechanism, a low-frequency air gun array pressure wavelet and spectrum prediction method is established, the total array volume, air gun spacing and arrangement method are adjusted, and a new low-frequency air gun combination is designed to improve low-frequency performance.

Benefits of technology

It is achieved to improve low-frequency performance without increasing the volume of the air gun, increase the total volume of the array, reduce the spacing of the air gun, and arrange the array into a square, effectively improving the generation of low-frequency band energy, reducing the generation of high-frequency band energy, and benefiting marine ecological protection.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a high-capacity air gun combination design method for expanding low-frequency-band energy, and relates to the field of deep sea resource exploration. The problem of how to use a high-capacity air gun array to obtain high-quality pressure wavelets in practical engineering application is solved. The method comprises the following steps: establishing a low-frequency air gun array pressure wavelet and frequency spectrum prediction method in combination with a bubble pulsation equation and a bubble group coupling mechanism; the total volume of the low-frequency air gun array is adjusted, and sound pressure level spectrograms under different array total volumes are obtained through a low-frequency air gun array pressure wavelet and frequency spectrum prediction method; a low-frequency air gun combination composed of two air guns is designed, and sound pressure level spectrograms under different low-frequency air gun intervals are obtained; 4, designing a low-frequency air gun combination composed of four air guns, and obtaining sound pressure level spectrograms under different low-frequency air gun arrangement modes; and according to the obtained sound pressure level spectrograms under different conditions, determining to increase the array total volume, the air gun spacing and the air gun arrangement mode, and completing the design of the novel low-frequency air gun combination.
Need to check novelty before this filing date? Find Prior Art