推进器系统激励下水下航行器结构中功率流分布特性及优化设计研究

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振动与冲击 ›› 2014, Vol. 33 ›› Issue (19) : 74-80.

论文

推进器系统激励下水下航行器结构中功率流分布特性及优化设计研究

刘贵杰闫茹姚永凯李蒙蒙张禹

作者信息 +

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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文章历史 +

摘要

以小型鱼雷式AUV作为研究对象，建立了参数化有限元分析模型，分别采用解析计算方法和nastran有限元分析获得输入功率流变化规律，验证有限元模型的可靠性。后处理得到AUV脊线上特征点在全频域范围内结构声强变化及AUV形体中功率流传播规律，结合PCL语言，得到AUV中功率流等值线分布，前后呼应展现了推进器系统激励下水下机器人中功率流传播特性。最后利用FEM优化平台结合振动功率流思想优化得到AUV壳体尺寸最优解，以蛛网图的形式对比了高低频处结构声强振动幅值与波动范围，印证了此优化思想。

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.

导出引用

刘贵杰闫茹姚永凯李蒙蒙张禹. 推进器系统激励下水下航行器结构中功率流分布特性及优化设计研究[J]. 振动与冲击, 2014, 33(19): 74-80

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