The Mechanics of the Systems of Structured Particles and Irreversibility

TL;DR

This paper explores the dynamics of structured particle systems in classical mechanics, deriving equations of motion, analyzing irreversibility, and linking internal energy increase to thermodynamic laws.

Contribution

It introduces equations for structured particles, derives a friction force expression, and connects irreversibility to internal energy growth, providing a theoretical basis for thermodynamics.

Findings

Derived equations of interaction and motion for structured particles

Obtained an expression for friction force

Linked irreversibility to internal energy increase

Abstract

Dynamics of systems of structured particles consisting of potentially interacting material points is considered in the framework of classical mechanics. Equations of interaction and motion of structured particles have been derived. The expression for friction force has been obtained. It has been shown that irreversibility of dynamics of structured particles is caused by increase of their internal energy due to the energy of motion. Possibility of theoretical substantiation of the laws of thermodynamics has been considered.