静水压力取样器冲击头冲击速度的理论与试验研究  

Theoretical and experimental study of a new hydrostatic corer

作　　者：秦华伟[1] 朱敬如[1] 王建军[2] 陈建桥[1] 陈鹰[2] 

机构地区：[1]杭州电子科技大学机械工程学院,浙江杭州310018 [2]浙江大学机械工程学系,浙江杭州310027

出　　处：《海洋工程》2013年第2期68-73,共6页The Ocean Engineering

基　　金：国家自然科学基金资助项目(40806043)

摘　　要：介绍了一种用于海底沉积物取样的静水压力取样器,它能依次利用重力势能和静水压力能,将其转换为冲击动能,以冲击形式将取样管插入海底沉积物进行取样。结合既定取样器对其冲击头的冲击速度进行了理论推导,并提出相关经验公式。通过取样器冲击试验,验证了静水压力取样器冲击头冲击速度理论模型的正确性和合理性。在理论推导和实验验证的基础上,对影响取样器冲击头冲击速度三个主要因素进行了探讨,并提出了提高冲击头冲击速度的具体措施。A hydrostatic seafloor sediment corer which can be used to turn gravity and hydrostatic pressure into impact kinetic energy is proposed. The corer can sample the seabed soil in an impacting way. The impact velocity of its impact head is derived according to revelant theories, and an empirical formula of the impact velocity is summarized. The related tests have verified the correctness and rationality of the theoretical models of the inpact velocity of the impact head in the hydrostatic corer. In addition, three key factors affecting the impact velocity are discussed and some specific proposals to optimize the impact velocity are proposed.

关 键 词：静水压力取样器 海底沉积物 冲击速度 冲击头 

分 类 号：P742[天文地球—海洋科学]