SE(3)上一般力学控制系统的运动描述与飞行器建模

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SE(3)上一般力学控制系统的运动描述与飞行器建模

左宗玉^1,2

1. 北京航空航天大学第七研究室, 北京 100191;
2. 北京航空航天大学飞行器控制一体化技术重点实验室, 北京 100191

收稿日期:2011-10-13 修回日期:2011-11-08 出版日期:2012-08-25 发布日期:2012-08-23
通讯作者: 左宗玉 E-mail:zzybobby@buaa.edu.cn
基金资助:
国家自然科学基金(61074010)

Kinematic Description of a General Mechanical Control System on SE(3) and Aircraft Modeling

ZUO Zongyu^1,2

1. The Seventh Research Division, Beihang University, Beijing 100191, China;
2. Science and Technology on Aircraft Control Laboratory, Beihang University, Beijing 100191, China

Received:2011-10-13 Revised:2011-11-08 Online:2012-08-25 Published:2012-08-23
Supported by:
National Natural Science Foundation of China (61074010)

摘要/Abstract

摘要： 与Lie群上的简单力学控制系统不同,Lie群上的一般力学控制系统需要考虑势能在位形空间中的变化,故其Lagrange算子不再是左不变的,这意味着根据定义Euler-Poincaré方程不能直接应用于此类系统。为此,本文首先建立矩阵Lie群SE(3)上的一般力学控制系统的数学描述,重新定义Lagrange算子为左不变动能减势能;然后基于连续Lagrange-d’Alembert法则推导得到了含有势能函数的Euler-Poincaré方程,用来刻画SE(3)上一般力学控制系统的动态;最后给出了四旋翼无人直升机和无人飞艇建模的应用实例。

关键词: 一般力学控制系统, 矩阵Lie群, 左不变, Euler-Poincaré方程, 四旋翼直升机, 飞艇

Abstract: Unlike simple mechanical control systems on a Lie group, a general mechanical control system on a Lie group includes a variable potential in configuration space, which makes it impossible for the Lagrangian of such a system to be left-invariant. This means, by definition, that the Euler-Poincaré equation cannot be applied directly to such a system. This paper first introduces the mathematical definitions of a general mechanical control system on matrix Lie group SE(3). Secondly, by redefining the Lagrangian of left-invariant kinematic energy minus potential energy, a modified Euler-Poincaré equation involving a potential function is deduced and obtained based on the continuous Lagrange-d’Alembert principle to describe the dynamics of the general mechanical control systems on SE(3). Finally, two applications of modeling an unmanned quadrotor and an unmanned airship are presented to verify the proposed approach.

Key words: general mechanical control system, matrix Lie group, left-invariant, Euler-Poincar? equation, quadrotor, airships

中图分类号:

V219
N945.12

左宗玉. SE(3)上一般力学控制系统的运动描述与飞行器建模[J]. 航空学报, 2012, 33(8): 1491-1497.

ZUO Zongyu. Kinematic Description of a General Mechanical Control System on SE(3) and Aircraft Modeling[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, 33(8): 1491-1497.

参考文献

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

SE(3)上一般力学控制系统的运动描述与飞行器建模

Kinematic Description of a General Mechanical Control System on SE(3) and Aircraft Modeling

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