Dissertation
Dissertation > Industrial Technology > Arms industry > Ammunition, fuses, pyrotechnics > Ammunition > Shells : the use and construction of

Analyze Acoustic Characteristic and Use Effect of Bubble-shell

Author LiuXueLiang
Tutor ZhongFangQing
School Harbin Engineering University
Course Weapons systems and the use of engineering
Keywords Air curtain bomb Acoustic scattering Sound Transmission Scattering intensity Insertion loss
CLC TJ413
Type Master's thesis
Year 2007
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In modern naval warfare , in order to defeat the enemy the local naval warfare under high - tech conditions , to larger combat radius , strong strike force and high-tech means of communication , but also needs to have a solid defense viability . With the advancement of science and technology , has drawn worldwide attaches great importance to the technical development of underwater acoustic warfare . Modern acoustic equipment has become a major electronic equipment of the two sides underwater acoustic reconnaissance and navigation, communications and underwater acoustic guidance . War the two sides in order to win , you must have the initiative of the underwater acoustic warfare that is only to be able to take advantage of underwater acoustic warfare equipment to interfere with enemy underwater acoustic equipment , but also to ensure their acoustic equipment in disturbed still work properly , when the completion of the task of underwater observation , weapons guidance . At this time the passive jamming in the acoustic interference has played a very important role . The air curtain bomb is passive jamming excellent choice. In this paper, the classic theory and research in recent years on the basis of analysis and summary of the acoustic characteristics of the air curtain bomb , the acoustic characteristics of bubbles in the water and the air bubble curtain . Especially transmittance the air curtain bomb sound scattering and sound . Acoustic scattering intensity of the air curtain bombs and insertion loss based on the the Songhua Lake the air curtain bombs experimental data analysis , that the air curtain bombs acoustic scattering strength and insertion loss of the incident sound wave frequency acoustic irradiation area between the gas curtain density dependence . On the basis of the results of the theory and data processing , the establishment of a single gold and multi- gold the air curtain bomb scattering intensity prediction model . Finally , from the perspective of energy analysis model of the the air curtain bomb acoustic warfare , carried out the analysis and tactical use of air curtain bombs .

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