在轨加注任务中变质量特性下的空间操作臂状态扩展自适应镇定控制

秦利; 闫莉莉; 刘福才; 梁波

doi:10.7527/S1000-6893.2018.22070

航空学报 >

2018 , Vol. 39 >Issue 10: 422070 - 422070

DOI: https://doi.org/10.7527/S1000-6893.2018.22070

材料工程与机械制造

在轨加注任务中变质量特性下的空间操作臂状态扩展自适应镇定控制

秦利 ,
闫莉莉 ,
刘福才 ,
梁波

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1. 燕山大学电气工程学院, 秦皇岛 066004;
2. 燕山大学材料科学与工程学院, 秦皇岛 066004

收稿日期: 2018-01-31

修回日期: 2018-04-16

网络出版日期: 2018-06-01

基金资助

国家自然科学基金青年科学基金（51605415）；载人航天预先研究项目（040301）；河北省自然科学基金（F2016203494，F2015203362）

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State expansion adaptive stabilization control of space manipulator with variable mass characteristics under on-orbit refuelling task

QIN Li ,
YAN Lili ,
LIU Fucai ,
LIANG Bo

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1. School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China;
2. School of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, China

Received date: 2018-01-31

Revised date: 2018-04-16

Online published: 2018-06-01

Supported by

Young Scientists Fund of the National Natural Science Foundation of China (51605415); Pre-Research Project for Manned Space Flight (040301); the Natural Science Foundation of Hebei Province, China (F2016203494, F2015203362)

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摘要

模块更换方式在轨加注任务面向不同类型的多个待加注目标与推进剂模块，过程中涉及航天器对接与分离、推进剂模块拆卸与组装等多种操作，研发时需要考虑系统中质量特性变化复杂，以及地面验证中存在的全周期、遍历性的任务级微重力模拟试验难以实现的问题。首先，针对地面调试良好时在轨加注空间操作臂系统可能被掩盖的非线性动力学特性，分析了一定参数范围下，任务执行过程中负载和基座质量特性变化对空间操作臂动力学特性和控制性能的影响。随后为实现对控制对象及环境改变的自适应性，基于惯性矩阵分解与重力载荷矩阵线性化，设计g的自适应律，并扩展系统状态变量，建立系统的Hamilton模型，进而基于能量函数整形与阻尼注入的无源性控制思想，设计预置镇定控制律，提出一种可对不同工况下的系统非线性实现自适应镇定的控制方案。最后，通过仿真研究验证了所提控制方案的有效性。

关键词： 空间操作臂; 在轨加注; 非线性动力学分析; 状态扩展; 自适应镇定控制

本文引用格式

秦利 , 闫莉莉 , 刘福才 , 梁波 . 在轨加注任务中变质量特性下的空间操作臂状态扩展自适应镇定控制[J]. 航空学报, 2018 , 39(10) : 422070 -422070 . DOI: 10.7527/S1000-6893.2018.22070

Abstract

On-orbit refuelling based on module replacement involves various operations such as docking and separation of spacecraft and disassembly and assembly of propellant modules, and are oriented towards many different types of spacecrafts and many sizes of propellant modules. The development phase needs to consider the complex changes in mass characteristics, and the fact that the whole cycle, ergodic task-level micro-gravity simulation test in ground validation is difficult to achieve. Considering these problems, this paper firstly analyzes the influence of changes in load and base mass characteristics on the dynamic characteristics and control performance of the system. Then, to realize the adaptability to the changing control objects and environment in the process of operation task, the adaptive law of gravity acceleration g is designed based on inertia matrix decomposition and gravity load matrix linearization, and the system state variables are extended to establish the Hamiltonian model of the system. Furthermore, based on the idea of passive control of energy function shaping and damping injection, the control law of presetting stabilization is designed, and a control scheme of adaptive stabilization of system nonlinearity under different working conditions is proposed. The simulation results verify the effectiveness of the proposed control scheme.

Key words： space manipulator; on-orbit refuelling; nonlinear dynamics analysis; state expansion; adaptive stabilization control

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