舰艇进水平衡过程的耦合效应仿真及实验

Simulation and experiment of coupling effects in the warship flooding equalization process

为定量评估进水平衡系统的平衡能力,对舰艇进水平衡过程中船体、水流、气流之间的耦合效应开展研究.通过构建水流与气流的微分方程,联立舰艇平衡方程组,提出了舰艇进水平衡过程的耦合时域微分方程组及求解算法.通过船模实验验证该模型准确性,并揭示了舰艇进水平衡过程存在横倾迅速增大、横倾增速趋缓、横倾快速减小、横倾缓慢减小和横倾趋近平衡共五个进水阶段.针对不同规格的通气管与连通管,基于该模型对其平衡能力进行量化对比分析,进而得出进水平衡系统的最优设计方案.

To quantitatively evaluate the balance ability of the flooding equalization system,coupling effects among ship,water flow and air flow in the warship flooding equalization process were studied.By developing the differential equations of water flow and air flow,combining with warship equilibrium equations,the coupling time-domain differential equations and solution algorithm of warship flooding equalization process were established.The mathematic mode′s accuracy was tested by ship model experiment.It can be revealed that there are five stages in the warship flooding equalization process:rapid increase in heeling,slow increase in heeling,rapid decrease in heeling,slow decrease in heeling,and approaching heeling balance.The balance ability of different specifications of ventilation pipes and connecting pipes was quantitatively compared and analyzed based on the model.The optimal design scheme of the flooding equalization system was obtained.