高精度深海压力模拟装置的分析

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英文篇名：Research on the High Precision Deep-sea Pressure Simulator 作者：吴建美 ; 王勇 ; 刘正士 英文作者：WU Jianmei;WANG Yong;LIU Zhengshi;School of Mechanical and Automotive Engineering,Hefei University of Technology; 关键词：深海环境 ; 模拟系统 ; 高精度 ; 压力缸 ; MATLAB 英文关键词：Deep-sea environment;;Simulation system;;High precision;;Pressure cylinder;;MATLAB 中文刊名：JCYY 英文刊名：Machine Tool & Hydraulics 机构：合肥工业大学机械与汽车工程学院; 出版日期：2015-05-28 出版单位：机床与液压 年：2015 期：v.43;No.388 基金：国家自然科学基金项目(51279044;41076061) 语种：中文; 页：JCYY201510026 页数：3 CN：10 ISSN：44-1259/TH 分类号：81-83

摘要

基于深海环境的特殊性,以及在现场进行观察和研究的难度较大,在实验室建立深海模拟系统进行研究工作显得尤为重要。针对现有的高精度深海压力模拟装置,分析了充压至5 MPa后压力缸几何尺寸的变化,根据相关计算公式推导出了在密闭容腔内液体体积改变量与压力变化量之间存在迭代关系,然后通过MATLAB计算软件绘出了大、小活塞进给量与压力变化量的关系曲线图,得出了进给量与压力变化量之间近似呈线性关系,分析出可以通过精度较高的位移传感器来测量压力并且可以获得比标准压力传感器更高的精度,进而得出对于微小的压力波动可以通过位移传感器来精确标定的结论。
        It is particularly important to establish the deep-sea simulation system in the laboratory for research work when considering the particularity of deep-sea environment and the difficulty of the observation and research on the spot. Aiming at existing deepsea pressure simulator,the change of the geometry size of the pressure cylinder after the pressure arrived 5 MPa was analyzed. According to the relevant calculation formula,the airtight vessel iterative relationship between liquid volume change and pressure variation was deduced,then the relationship diagrams between the large and small piston feed rate and the changes of pressure were plotted through the calculation software MATLAB,and the relationship between the feed rate and the changes of pressure was approximate linear,measuring pressure through the displacement sensor of high precision was analyzed and higher precision could be gotten than the standard pressure sensor. Then small pressure fluctuation can be calibrated accurately by displacement sensor.

引文

[1]沈国鉴,胡勇,殷俊,等.2 000 m多用途深海环境模拟装置的可靠性分析[J].上海交通大学学报,1990,24(4):17-25.
    [2]WILNER L B.Studies of the Performance of Electronic Components under Deep-ocean Pressure[R].Lockheed Tech Note LMSD-894807,1961(DDC AD 254-606).
    [3]钱东,谢蓉,范江鹏.水压测试系统-新型高压消声罐[J].鱼雷技术,1998(2):39-43.
    [4]俞茂宏,何丽南,宋凌宇.双剪应力强度理论及其推广[J].中国科学,1985,28(12):1113-1120.
    [5]吴珏斐,李维嘉.某型压力筒的压力控制系统设计与仿真[J].舰船科学技术,2011,33(9):56-59.
    [6]王勇,刘正士,陈恩伟.软囊式水下力传感器的力学特性与设计原则[J].机械工程学报,2009,45(10):15-21.
    [7]MAN Li,LIU Guijie,ZHANG Qingli,et al.Design of the pressure control system on a device for simulating deep-sea environment[C]//2010 International Conference on Mechanic Automation and Control Engineering(MACE),2010.
    [8]王勇,刘正士,刘焕进,等.压力或差压传感器的压力标定装置及标定方法:中国,102519669[P].2013-09-18.
    [9]孟庆鑫,王华,王立权,等.一种水下灵巧手指端力传感器的研究[J].中国机械工程,2006,17(11):1132-1135.
    [10]黄克智,夏之熙,薛明德,等.板壳理论[M].北京:清华大学出版社,1987.