Abstract: surrounding rotating or reciprocating equipment in the ship’s cabin. This excitation can cause changes in the operation of the separator，and in severe cases，it can lead to faults such as rubbing and increased vibration. To simulate this excitation, the separator needs to undergo a sine sweep frequency test. In this paper，a simulation analysis of the sine sweep test for the separator’s bowl-shaft system is conducted using finite element analysis software，the influence of metal spring, rubber spring, spring stiffness，and mass of bowl on the simulation results of sweep test are analyzed，key parameter values for the bowl-shaft system are obtained. The rationality of the parameter selection is verified through on-site sine sweep frequency test.