摘要
使用液压驱动的深海载人潜水器,压力补偿器可消除海水压力对液压系统影响,补偿器内径作为其关键结构参数,其设计长期以来一直依靠经验,为解决此问题,通过数学建模,得到补偿压力波动峰值和补偿膜片内外压差峰值,得出补偿器内径是影响这两者的主要结构参数,其值越大,膜片内外压差峰值越小;结合滚动膜片强度理论,依据滚动膜片内外压差峰值须小于滚动膜片安全工作压力这一准则,得到补偿器内径的边界约束和取值方法,基于补偿器内径这一关键参数,压力补偿器可以实现精确以及可靠性设计,此设计方法在一些深海设备上获得应用,实际应用证明了该方法的可行性和有效性。
The hydraulic system of manned submersibles generally adopts an underwater pressure compensator to avoid the influence of water pressure. As the key structural parameter,the inner diameter of a compensator has been designed on the basis of experiences. Precise mathematical models were built to get the fluctuation peak of the compensation pressure and the peak of the pressure difference inside and outside the diaphragm. Thus we conclude that the inner diameter is the biggest factor influencing both peak values. The larger the inner diameter,the smaller the peak of the pressure difference inside and outside the diaphragm. Based on the design principle that the peak of pressure difference should be less than the safe working pressure of diaphragm,the boundary constraint and valuing method of the inner diameter of a compensator was attained. Based on the key parameter,which is the inner diameter of a compensator,the compensator can be designed accurately and reliably. This method has been widely used in some deep-sea vehicles. Practical application shows that the method is feasible and effective.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2016年第10期1313-1317,1352,共6页
Journal of Harbin Engineering University
基金
国家高技术研究发展计划(2014AA09A110)
国家海洋局公益性行业科研专项(201405036)
关键词
海洋工程
深海载人潜水器
流体传动与控制
滚动膜片式压力补偿器
可靠性设计
marine engineering
deep-seamanned submersible
fluid power transmission and control
rolling dia-phragm pressure compensator
reliability design
