碟形水下滑翔器耐压壳的结构优化  

Optimized Design of the Pressure-Proof Shell of Disk-Shaped Underwater Gliders

作　　者：刘德良 曹淑华 王天霖 路慧彪 LIU De-liang;CAO Shu-hua;WANG Tian-lin;LU Hui-biao Ship and Ocean Engineering College~ Dalian Maritime U）liversity~ Dalian 116022~ Liaoning Provirwe~ China

机构地区：[1]大连海事大学船舶与海洋工程学院,辽宁大连116022

出　　处：《海洋技术学报》2018年第3期1-7,共7页Journal of Ocean Technology

基　　金：国家重点研发计划重点专项资助(2016YFC0301500)

摘　　要：碟形水下滑翔器作为一种优点众多的新型水下滑翔器,近年来得到广泛应用。其液压浮力调节系统、姿态控制系统以及转向控制系统必须安装在耐压壳体内部,因此,对于耐压壳体的设计来说,尽量小的重量和尽量大的有效容积是其设计时的重要技术指标。为了得到最优结构,采用尺寸优化方法,以壳体厚度、两道环肋的高度作为设计变量对耐压壳进行优化设计,以期达到强度足够高、最大变形值小于容许变形值和质量最小的轻量化目标。优化后,质量较初始设计减少了30%,轻量化效果明显,并对最终选择的结构进行屈曲分析,其临界压力远大于许用压力。As a new type of underwater glider with many advantages, the disk-shaped underwater glider has been widely used in recent years. The hydraulic buoyancy control system, attitude control system and steering control system must all be installed inside the pressure housing. Therefore, as for the design of the pressure-proof shell, minimum weight and maximum effective volume are the important technical indicators in its design. In order to obtain the optimal structure, the size optimization method is adopted to optimize the design of the pressure-proof shell with the thickness of the shell and the height of the two ring ribs as the design variables. The design is expected to achieve the lightweight target with sufficient strength and maximum deformation less than the allowable deformation and the minimum mass. After the optimization process, the quality is reduced by 30% compared with the initial design, so the effect of light weight is obvious, and the final selection of the structure has passed buckling analysis, with its critical pressure far greater than the allowable pressure.

关 键 词：碟形水下滑翔器 耐压壳 有限元数值模拟 优化设计 

分 类 号：U674.941[交通运输工程—船舶及航道工程]