摘要
载人球是深海载人潜水器最为关键的部件。在设计过程中,要准确了解观察窗在使用工况下的蠕变变形过程和强度变化过程,据此开展窗座设计,否则可能出现观察窗挤出窗座或者在蠕变过程中变形不协调使得密封失效,或者载人球整体抗压能力的降低。文章通过计算分析和试验两种手段,对深海观察窗的强度、蠕变、边界条件的影响进行了研究。观察窗与窗座之间的相对位移,文中认为由两部分构成:一部分是观察窗玻璃随时间的蠕变变形,另一部分为观察窗与窗座在海水压力作用下发生的挤压变形。文中采用有限元方法进行接触分析,了解在不同边界摩擦系数下,观察窗因海水压力产生的挤压变形。从加工出来的观察窗产品中,任意抽取了两套侧观察窗和两套主观察窗进行试验研究。对理论计算与试验结果进行了对比分析,相关结果可供工程设计参考。
Human occupied sphere is the key component for deep-sea Human Occupied Vehicle （HOV）. The view-port windows will be crept under deep sea pressure.So the window is in a dynamic deflection station. Accurate analyses of the deflection and strength change event due to creep is the precondition of view-port windows design. Otherwise, the windows may be slipped out of the seat, or induce sealing failure. In this paper, the strength, creep and boundary condition influences on windows of deep-sea HOV are analyzed by numerical analysis and test. The deflection between windows＇ set and windows is composed of elastic slip deflection and creep deflection. Contact FE method is used to analyse this deflection. Two sets of side windows and main windows are used for test research. FEM results and test results are compared. This paper can be used as a reference for such type of structure design.
出处
《船舶力学》
EI
北大核心
2010年第7期782-788,共7页
Journal of Ship Mechanics
