The study of the wedge-shaped vibration-driven robot motion in a viscous fluid forced by different oscillation laws of the internal mass

11th International Conference on "Mesh methods for boundary-value problems and applications"

Nuriev, A.N.^1 ; Zakharova, O.S.^2 ; Zaitseva, O.N.^3 ; Yunusova, A.I.^4

Research Institute of Mechanics, Lobachevsky State University of Nizhnij Novgorod, Nizhnij Novgorod

603950, Russia^1

Lobachevsky Institute of Mathematics and Mechanics, Kazan Federal University, Kazan

420008, Russia^2

Higher Institute of Information Technologies and Information Systems, Kazan Federal University, Kazan

420008, Russia^3

Department of Informatics and Applied Mathematics, Kazan National Technological University, Kazan

420015, Russia^4

关键词: Comparative analysis;    Longitudinal oscillations;    Mechanical systems;    Rectilinear motion;    Robot motion;    Two mass systems;    Viscous fluids;    Viscous incompressible fluids;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/158/1/012072/pdf
DOI  :  10.1088/1757-899X/158/1/012072

来源: IOP

【 摘 要 】

A rectilinear motion of a two-mass system in a viscous incompressible fluid is considered. The system consists of a shell having the form of an equilateral triangular cylinder and a movable internal mass. The motion of the system as a whole is forced by longitudinal oscillations of the internal mass relative to the shell. This mechanical system simulates a vibration-driven robot, i.e. a mobile device capable to move in a resistive medium without external moving parts. Investigation of the system is carried out by a direct numerical simulation. A comparative analysis of the characteristics of the motion and flow regimes around the vibration-driven robot is carried out for different internal mass oscillation laws.