Abstract:Support cylinder is the connector of rocket and satellite. It will reduce the vibration response of satellite
through improving damping performance of the support cylinder. The support cylinder which is made of T700S
carbon fiber reinforced AG80 resin can not meet the damping requirement at room temperature. This paper expounded
two methods to increase its damping performance. The first was to select the modified 861340 as the matrix of the
composite. The result showed that when the content of 861340 was 23%, the damping performance was the best. The
second was to use the piecewise layer method which resulted from the technology of Constrained Layer Damping. Two
kinds of support cylinder were made as comparative experiments. 1# applied AG80 resin as matrix while 2# applied
modified 861340 and the piecewise layer method. Compared with 1#, the vibration response of 2# dropped 60. 5% in
the longitudinal vibration experiment. It was 20. 7% lower than 1# in the transversal vibration experiment.
