拖体拖曳稳态纵倾角计算仿真及试验

Calculation Simulation and Experiment of Steady-State Trim Angle of Towed Body

无动力拖体拖曳过程中,通常对拖体姿态稳定性及稳态角度要求较高。文章给出无动力拖体拖曳过程中稳态纵倾角计算方程,为拖体结构设计提供理论依据,并提出一种动力学及流体力学联合仿真方法,对拖体拖曳稳态纵倾角进行仿真计算。将仿真结果与多次湖上试验的数据进行对比,证明了仿真计算方案可行,且准确性较高,这对今后产品的结构设计、试验方案和设备使用有一定的指导意义。

In the process of unpowered towing,there are usually high requirements for the attitude stability and steady-state angle of the towed body.The calculation equation of steady-state trim angle in the towing process of unpowered towed body is given,which provides a theoretical basis for the structural design of towed body.A joint simulation method of dynamics and hydrodynamics is proposed to simulate the steady-state trim angle of towed body.Comparing the simulation results with the data of many lake tests,it is proved that the simulation calculation scheme is feasible and accurate,which has certain guiding significance for the structural design,test scheme and equipment use of products in the future.