The dynamic research and position estimation of the towed array during the U-turn process

13th International Conference on Motion and Vibration Control; 12th International Conference on Recent Advances in Structural Dynamics

Yang, J.X.^1,2 ; Shuai, C.G.^1,2 ; He, L.^1,2 ; Zhang, S.K.^1,2 ; Zhou, S.T.^1,2

Institute of Noise and Vibration, Naval University of Engineering, Wuhan, China^1

National Key Laboratory on Ship Vibration and Noise, Wuhan, China^2

关键词: Computational time;    Dynamic researches;    Position estimation;    Segment lengths;    Simulation accuracy;    Time step;    Towed array;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/744/1/012068/pdf
DOI  :  10.1088/1742-6596/744/1/012068

来源: IOP

【 摘 要 】

A dynamic model for estimating position of ship towed array during U-turn manoeuvre is introduced and developed. Based on this model, the influences of the parameters such as time step and segment length on the numerical simulation are analysed. The results indicate that decreasing the time step has little effect on the simulation accuracy but will increase the computational time. The selection of segment length has a great influence on the estimation of ship towed array position during U-turn manoeuvre. Reducing the segment length somewhat increases the computational complexity and significantly improves simulation precision.