【摘要】 介绍了集抽吸泵抽吸作用形成局部负压和三重管结构设计等特性于一体的新型海底液动冲击取样器的工作原理,并建立起液动冲击取样器抽吸泵的数学模型,对抽吸泵进行了理论分析和数值计算.更多还原

【Abstract】 In the paper,a new sampler—hydro-percussion seabed sampler is discussed.In the sam-pler’s structure design,the tri-pipe structure is considered to reduce the sample’s disturbance and the sorption pump structure,which can produce local negative pressure in polyethylene screened pipe is ap-plied to guarantee the sample’s quality.In addition,a mathematical model of the seabed hydro-percus-sion sampler is set up to carry out the theoretical analysis and the numerical calculation which is based on finite difference method.更多还原