Analysis of deformability of composite laminated anisotropic cylindrical shells in the conceptual design of mechanical transducers and actuators. (February 2019)

• Record Type: Journal Article
• Authors: Lopatin, A.V.; Morozov, E.V.
• Is Part Of: International journal of mechanical sciences. Volume 151(2019)
• Page Start: 877
• Page End: 886
• Publication Date: 2019-02
• Subjects: Composite laminated anisotropic cylindrical shell -- Axisymmetric deformation -- Analytical solution -- Mechanical transducers and actuators; Mechanical engineering -- Periodicals; Génie mécanique -- Périodiques; Mechanical engineering; Maschinenbau; Mechanik; Zeitschrift; Periodicals; 621.05
• DOI: 10.1016/j.ijmecsci.2018.12.007
• Languages: English
• ISSNs: 0020-7403

Abstract

Highlights: Analysis of deformability of mechanical actuators made in the form of composite anisotropic cylindrical shells is presented. Based on an analytical solution the formulas for the angle of rotation and the reactive internal shear force are derived. The anisotropy effects and effects of elastic and geometric parameters on the shell deformation are investigated. Application of the analytical solution is demonstrated for conceptual design analyses of anisotropic structural elements. Abstract: Analysis of axisymmetric deformability of mechanical transducers and actuators made in the form of composite anisotropic cylindrical shells subjected to axial tension or internal pressure is presented in the paper. The shells are modelled as cantilevers with one end fully clamped and another one free hanging with a rigid solid disk attached. Based on the analytical solution obtained and formulas derived, the conversion of the axisymmetric loading (axial load or internal pressure) to the shell torsion is analysed. Effects of material elastic characteristics, angle of the reinforcement orientation, and shell dimensions on the shell deformability and the value of the reactive shear force are illustrated using the analysis of anisotropic single-layered shells. It is shown that the angle of rotation and the reactive shear force have their maximum values at certain angles of the fibre orientation. Relationships between the shells' lengths, thicknesses and the angles of the disk rotation or corresponding reactive shear forces are identified. It is shown, based on these equations, how the parameters of an anisotropic shell, delivering a required angle of the disk rotation, can be calculated. Graphical abstract: