Axial vibrations of a composite anisogrid lattice cylindrical shell with end masses

作者：Lopatin A V; Morozov E V^*; Shatov A V

来源：Composite Structures, 2017, 176: 1143-1151.

DOI：10.1016/j.compstruct.2017.06.001

• Space telescope body
• Composite anisogrid lattice cylindrical shell
• Rigid end masses
• Axisymmetric longitudinal vibration
• Modal analysis
• Finite-element analysis

An analytical solution of axial vibration problem formulated for a composite anisogrid lattice cylindrical shell with massive disks attached to its ends is presented in the paper. The lattice cylinder is analysed using a continuum model having effective stiffness parameters equivalent to the original anisogrid structure. Axisymmetric deformations of the vibrating shell are modelled using classic theory of orthotropic shells. A formula enabling rapid and reliable calculations of the frequency of axial vibrations is derived and verified using a finite element analysis. Based on this formula, effects of the geometry of lattice structure and masses of the disks are investigated.

• 出版日期2017-9-15