基于数值运动仿真的水下滑翔机浮力调节设计及试验研究

Design and experimental study of buoyancy adjustment of underwater glider based on numerical motion simulation

为了提高水下滑翔机航行性能预报精度,达到对浮力调节量进行优化设计的目的,本文综合考虑海水密度变化、耐压舱与气囊弹性压缩变形等因素,建立了相对完善的水下滑翔机垂直面运动数学模型,结合CFD及ANSYS有限元计算,对水下滑翔机垂直面运动进行了计算仿真,针对研制的水下滑翔机进行了浮力调节能力优化设计,并将运动仿真结果与试验结果进行对比,验证了通过运动仿真方法开展水下滑翔机浮力调节量优化设计的有效性,为改进水下滑翔机浮力驱动系统设计及航行性能预报提供参考。

In order to improve the prediction accuracy of the navigation performance of an underwater glider,and to optimize the design of buoyancy regulation,a relatively perfect mathematical model of the underwater glider vertical movement was built by taking into account factors such as the change of sea water density and elastic compression deformation of both compression cabin and air bag.Combining CFD and ANSYS finite calculation,numerical simulation of underwater glider vertical movement was carried out.The effectiveness of the method was verified by comparing the results of the simulation with those of the experiment.This work provides reference for the design of buoyancy driving systems of underwater gliders and the prediction of their navigation performance.