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Control of a System with Two Degrees of Freedom by Means of Potential Forces

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Abstract This work determines the restoring forces of the elastic elements of a system with two degrees of freedom by its predetermined movement. Two bodies of a certain mass are… Click to show full abstract

Abstract This work determines the restoring forces of the elastic elements of a system with two degrees of freedom by its predetermined movement. Two bodies of a certain mass are considered. The first body is connected by the first elastic element with a fixed base; and the second body is connected with the first body by the second elastic element. The movement occurs in a straight line in a horizontal plane. Gravity and friction forces are not taken into account. Then, the trigonometric functions of the law of motion of each body and the restoring forces of both elastic elements are analytically determined. These restoring forces are the control functions by which the desired movement is realized. Technically, such controls can be implemented in various ways, in particular, through passive elastic elements, the design and calculation method of which is proposed in the article. A variant of creating elastic elements with the restoring forces based on springs moving between two guides of the calculated form perpendicular to their axis of symmetry is given.

Keywords: system two; elastic elements; degrees freedom; restoring forces; two degrees

Journal Title: Journal of Computer and Systems Sciences International
Year Published: 2020

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