The stiffness of the metal rubber clamp obtained from the static test cannot accurately reflect the dynamic characteristics of the pipeline system. The metal rubber clamp as an in-plane linear spring and an angular transverse-torsional spring model is simplified. Two kinds of dynamic tests are carried out: the sweeping frequency test of the single clamp-pipe system

the linear stiffness is obtained by the translational mode analysis. And the modal test of the single pipe-double clamps

the angular stiffness is obtained by using the bending mode analysis. The simulated results are compared with the two tests by using the modes matching approach. With the goal of minimizing the error between the simulated natural frequency and the test frequency corresponding to the same vibration mode

the dynamic linear stiffness and angular stiffness of the metal rubber clamp in two support directions are identified. Finally

the damping ratio of the clamp in both support directions is also given.