全海深沉积物保压容器有限元分析

发布时间：2018-04-09 20:26

  本文选题：全海深环境　切入点：保压容器　出处：《湖南科技大学学报(自然科学版)》2017年03期

【摘要】：针对全海深沉积物气密取样器所采集的深渊海底沉积物样品,设计一套沉积物保压存储容器,从而为深渊海底生命演化等科学研究提供海底原位保压样品.首先,根据全海深沉积物保压容器的保压容积和保压性能的要求,开展保压容器几何结构参数的初步设计,并利用三维软件Solidworks建立保压容器的三维几何模型.其次,利用有限元分析ANSYS软件,开展模拟全海深超高压环境下的保压容器性能分析,检验保压容器的性能.最后,研究不同保压容器的壁厚和内径对保压容器性能的影响,结果表明:在保压容器的储存容积和保压容器壁厚相同的条件下,保压容器所受的最大应力随着保压容器内径的增大而逐渐增大,而保压容器的重量会逐渐减少.
[Abstract]:In this paper, a set of sediment storage vessel is designed for the samples of abyss seabed sediment collected by the air-tight sampler of the whole sea depth sediment, so as to provide in situ pressure preservation samples for the scientific research of life evolution of the abyss seabed.Firstly, according to the requirements of the pressure holding volume and the pressure keeping performance of the whole sea depth sediment holding vessel, the preliminary design of the geometric structure parameters of the pressure holding vessel is carried out, and the three-dimensional geometric model of the pressure holding vessel is established by using the three-dimensional software Solidworks.Secondly, the finite element analysis (ANSYS) software is used to analyze the performance of the pressurized vessel under the simulated sea depth and ultra-high pressure environment, and to test the performance of the vessel.Finally, the effects of wall thickness and inner diameter of different pressure holding vessels on the performance of pressure retaining vessels are studied. The results show that: under the condition of the same storage volume and wall thickness of pressure holding vessels,The maximum stress of the pressurized vessel increases with the increase of the inner diameter of the vessel, and the weight of the vessel decreases gradually.
【作者单位】： 湖南科技大学海洋矿产资源探采装备与安全技术国家地方联合工程实验室;
【基金】：国家重点研发计划资助项目(2016YFC0300502;2017YFC0307501) 国家自然科学基金资助项目(51705145;51779092)
【分类号】：P742
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本文编号：1728008