The invention belongs to the technical field of real ship monitoring, and discloses a full-hovering hovercraft pressure field inversion method and a full-hovering hovercraft pressure field inversion system. The method comprises the following steps: solving static pressures of a left front air chamber, a right front air chamber, a left rear air chamber and a right rear air chamber based on a hovercraft static balance equation; collecting acceleration responses of three characteristic positions of a pool towing test model or an actual ship in actual sea area cushion sailing; according to the ship kinematics theory, the acceleration responses of the three feature positions are converted into acceleration responses of three degrees of freedom of motion; and solving the dynamic pressure of the air chamber of the hovercraft based on the dynamic balance equation of the hovercraft. According to the invention, the characteristic of limited quantity of air chambers of the hovercraft is utilized, so that the reverse thrust of the pressure intensity of the air chambers from acceleration (force and torque) becomes possible. The method is suitable for inversion of the air cushion pressure field in the air chamber of the hovercraft, and the static pressure and the dynamic pressure obtained by the method can be used for subsequent structural strength analysis.
本发明属于实船监测技术领域,公开了一种全垫升气垫船压力场反演方法及系统。该方法基于气垫船静力平衡方程求解左前气室、右前气室、左后气室、右后气室静压强;对水池拖曳试验的模型或实际海域垫态航行的实船三个特征位置加速度响应进行采集;通过船舶运动学理论,将三个特征位置的加速度响应转化为三个运动自由度的加速度响应;基于气垫船动力平衡方程,求解气垫船气室动压强。本发明利用了气垫船气室的有限数量特点,使得从加速度(力、力矩)反推气室压强成为可能。本发明可适用于气垫船气室内气垫压力场的反演,本发明获取的静、动压强可服务于后续的结构强度分析。
Full-hovering hovercraft pressure field inversion method and system
一种全垫升气垫船压力场反演方法及系统
2023-12-22
Patent
Elektronische Ressource
Chinesisch
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