UNCERTAINTY QUANTIFICATION AND ANALYSIS OF DYNAMICAL SYSTEMS WITH INVARIANTS

被引：0

作者：

Joshi, Anant A. ^{[1
]}

Subbarao, Kamesh ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Mech Engn, Mumbai 400076, Maharashtra, India

[2] Univ Texas Arlington, Dept Mech & Aerosp Engn, Arlington, TX 76010 USA

来源：

SPACEFLIGHT MECHANICS 2019, VOL 168, PTS I-IV | 2019年 / 168卷

关键词：

ROTATIONAL BROWNIAN-MOTION; PLANCK-LANGEVIN MODEL; PROPAGATION;

D O I：

暂无

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This paper considers uncertainty quantification in systems perturbed by stochastic disturbances, in particular, Gaussian white noise. The main focus of this work is on describing the time evolution of statistical moments of certain invariants (for instance total energy and magnitude of angular momentum) for such systems. A first case study for the attitude dynamics of a rigid body is presented where it is shown that these techniques offer a closed form representation of the evolution of the first and second moments of the kinetic energy of the resulting stochastic dynamical system. A second case study of a two body problem is presented in which bounds on the first and second moments of the angular momentum are presented.

引用

页码：1505 / 1521

页数：17

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