Research of AUVstructure power flow distribution characteristicsand hull optimization design under propulsive system excitation

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Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (19) : 74-80.

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Research of AUVstructure power flow distribution characteristicsand hull optimization design under propulsive system excitation

LIU Gui-jie, YAN Ru, YAO Yong-kai, LI Meng-meng, ZHANG Yu

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Abstract

A parametric finite element analytical model of small torpedo AUV had been established to obtain the input power flow variation by finite element analysis and numerical simulation method. The comparison result verified the reliability of the finite element model. Structural intensity changes of feature points along AUV ridge line in the whole frequency domain and power flow propagation in AUV’s body were obtained by Matlab while the power flow contour maps of AUV was obtained by PCL language. The power flow propagation characteristics of underwater vehicle under propulsive excitation was shown by echoed around. Finally the optimal solution of the shell size was got by using FEM optimization platform combined with the idea of vibration power flow and the output optimization results was contrasted in the form of a spider diagram to confirm the idea of the optimization.

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Autonomous underwater vehicle / vibration power flow / structural intensity / optimization

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LIU Gui-jie;YAN Ru;YAO Yong-kai;LI Meng-meng;ZHANG Yu. Research of AUVstructure power flow distribution characteristicsand hull optimization design under propulsive system excitation[J]. Journal of Vibration and Shock, 2014, 33(19): 74-80