集成水力翼板的深海着陆器水动力特性研究与结构优化  

Hydrodynamic Characteristics Research and Structure Optimization of Hadal Lander with Hydrofoil

作　　者：薛钢[1,2] 刘延俊[1,2,3] 薛祎凡 郭磊 XUE Gang;LIU Yanjun;XUE Yifan;GUO Lei(Institute of Marine Science and Technology,Shandong University,Qingdao 266237;School of Mechanical Engineering,Shandong University,Jinan 250061;Shandong TOP Hydraulic&Pneumatic Co.,Ltd.,Jinan 250109)

机构地区：[1]山东大学海洋研究院,青岛266237 [2]山东大学机械工程学院,济南250061 [3]山东拓普液压气动有限公司,济南250109

出　　处：《机械工程学报》2024年第2期209-223,共15页Journal of Mechanical Engineering

基　　金：国家自然科学基金(52001186,41806075,U2006213);国家重点研发计划(2018YFC0309200);山东省自然科学基金(ZR2020QE292)资助项目。

摘　　要：为解决深海着陆器沉降速度和沉降轨迹不受控问题,提出集成水力翼板的新型着陆器,能够高效率、低能耗精准缓降着陆。以集成水力翼板的深海着陆器为研究对象,建立其运动学模型和水动力学模型,采用Fluent软件数值模拟分析着陆器沉降过程的绕流场演化规律,阐明水力翼板的缓降作用机理,并基于最优拉丁超立方抽样方法、高斯过程回归方法、Sobol’全局灵敏度分析方法、NSGA-III多目标优化算法,实现了水力翼板的结构参数和开合角度的优化。研究结果表明:水力翼板的开合角度对着陆器沉降速度的影响权重最大,水力翼板增大了着陆器绕流场中的流体附加质量,减少了着陆器重力势能向着陆器动能的转换,从而降低了着陆器的沉降速度。集成水力翼板的结构形式为新型深海着陆器的设计与应用提供了参考依据。In order to control the falling velocity and the motion trajectory of hadal lander,the hydrofoil is designed and installed on the hadal lander,which is of high efficiency and low energy consumption.The hadal lander with hydrofoil is taken as research object,the kinematics model and hydrodynamic model are established,the evolution law of flow field around hadal lander in the falling process is numerically analyzed by the commercial software Fluent,and the slow falling mechanism based on hydrofoil is clarified.Besides,the structural parameters and the opening angle of hydrofoil are optimized based on the optimal Latin hypercube sampling method,the Gaussian process regression method,the Sobol'global sensitivity analysis method and the NSGA-III multi-objective optimization algorithm.It shows that the opening angle of hydrofoil is the major factor affecting the falling velocity.The hydrofoil could increase the additional mass of fluid around the hadal lander and weaken the conversion of the hadal lander’s gravitational potential energy towards the hadal lander’s kinetic energy,which is the mechanism of hydrofoil to reduce the falling velocity of hadal lander.The structure with hydrofoil will do favor in the design and application of hadal lander.

关 键 词：着陆器 水力翼板 水动力特性 结构优化 

分 类 号：TH69[机械工程—机械制造及自动化]