要素ベースのフォーメーション制御:連続体力学からの統一的視点
Element-based Formation Control: a Unified Perspective from Continuum Mechanics
連続体力学の変形勾配を用いて、フォーメーション制御のための統一的な要素ベースのフレームワークを構築し、様々な幾何学的不変性を実現する分散制御則を導出した。
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分類: eess.SY, cs.MA, cs.RO, cs.SY, math.OC
原文アブストラクト
This paper establishes a unified element-based framework for formation control by introducing the concept of the deformation gradient from continuum mechanics. Unlike traditional methods that rely on geometric constraints defined on graph edges, we model the formation as a discrete elastic body composed of simplicial elements. By defining a generalized distortion energy based on the local deformation gradient tensor, we derive a family of distributed control laws that can enforce various geometric invariances, including translation, rotation, scaling, and affine transformations. The convergence properties and the features of the proposed controllers are analyzed in detail. Theoretically, we show that the proposed framework serves as a bridge between existing rigidity-based and Laplacian-based approaches. Specifically, we show that rigidity-based controllers are mathematically equivalent to minimizing specific projections of the deformation energy tensor. Furthermore, we establish a rigorous link between the proposed energy minimization and Laplacian-based formation control. Numerical simulations in 2D and 3D validate the effectiveness and the unified nature of the proposed framework.
