欢迎光临《计算力学学报》官方网站！

Kinematic analysis and simulation of the sample bag reshaping and winding system for lunar soil sampling[J].计算力学学报,2020,37(6):750~755

Kinematic analysis and simulation of the sample bag reshaping and winding system for lunar soil sampling
Kinematic analysis and simulation of the sample bag reshaping and winding system for lunar soil sampling

DOI：10.7511/jslx20200406001

 作者 单位 E-mail 国树东 大连理工大学 工业装备结构分析国家重点实验室, 大连 116024 王刚 大连理工大学 海洋科学与技术学院, 盘锦 124221 齐朝晖 大连理工大学 工业装备结构分析国家重点实验室, 大连 116024 zhaohuiq@dlut.edu.cn 张欣刚 青岛理工大学 理学院, 青岛 266520 魏妹 大连理工大学 工业装备结构分析国家重点实验室, 大连 116024

月壤样品袋整形是探月工程月壤采样的重要一环。传统仿真分析是按照给定的几何参数和材料参数进行动力学建模。本文运用逆向思维，在样品袋顺利缠绕条件下，建立整形缠绕系统的运动学模型；根据样品袋顺利缠绕的运动方程和受力分析，得到顺利缠绕的卷筒驱动条件和结构运动参数范围。结果表明，导向套运行速度是影响缠绕的关键因素，且需要与卷筒角速度匹配调整。当卷筒角速度为0.6 r/min时，导向套运行速度调整为11.63 mm/min，可以使样品袋重叠点和失效范围达到最小。研究结果为样品袋整形缠绕系统设计提供了参考。

Lunar soil sample bag reshaping is an important part of lunar soil sampling for lunar exploration projects.The traditional simulation analysis is based on the given geometric and material parameters in dynamic modeling.In this paper,using reverse thinking,the kinematic model of the reshaping and winding system is established under the condition that the sample bag is smoothly wound.According to the equation of motion and force analysis of the sample bag,the driving conditions and the range of motion parameters of the effective winding are obtained.The results show that the running speed of the guide sleeve is the key factor and needs to match the angular speed of the winch.By adjusting the running speed to 11.63 mm/min when the angular speed is 0.6 r/min,the overlap points and failure range of the sample bag can be minimized.These research results provide a reference for the design of the sample bag reshaping and winding system.