Study about Large Unified Symmetry for mechano-electrical dynamic systems

In this paper, the new concept of the Large Unified Symmetry and conserved quantities for dynamic mechano-electrical are presented. The Large Unified Symmetry and conserved quantities for mechano-electrical dynamicsystems are studied by the relations between the three kinds of symmetries and the three kinds of conserved quantities. We worked on the Large Unified Symmetry and conserved quantity by the Noether symmetry, the Lie symmetry and the Mei symmetry, including the definition and criterion of the Large Unified Symmetry and conserved quantity deduced from them. The Large Unified Symmetry is a intersection set among the Noether symmetry, the Lie symmetry and the Mei symmetry. It will play an important role in the fields of modern science and technology.