Vibration Suppression of a Conical Honeycomb Satellite Adapter Subjected to Cons trained Layer Damping
Du Huajun,Yu Baisheng,Zheng Gangtie,Huang Wenhu
(School of Astronautics, Harbin Institute of Technology, Harbin 150001)

Abstract: Conical honeycomb shell is a widely applied structure, especially in space engineering, such as satellite boards and satellite adapters. In this paper, to suppress vibration transmission through the conical honeycomb shell onto its connected structure, a constrained viscoelastic layer is applied on the shell surface. Although the constrained viscoelastic layer has been studied extensively in the past thirty years, studies have been mainly on beams and plates. With an equivalent model of honeycomb shell and theoretical analysis of Constrained Viscoelastic Layer (CVL),finite element models (FEM) of the adapter with and without CVL and the satellite are built. With modal analysis and frequency response analysis, influences of constrained layer design parameters on the vibration suppression effects are obtained. The results are essential to an effective and economical design of the constrained visoelastic layer, especially when there are strict restrictions on the weight and size of the structure.
Keywords: vibration suppression, constrained layer damping, modal analysis.