***WARNING: In contact pair 1, node 3050 of instance STRIKER-1 on the slave
            surface ASSEMBLY_SURF-STRIKER has 13.861 times more mass than the
            mass of node 2229 of instance CHARPY-1 on the master surface
            ASSEMBLY_SURF-CHARPY-UP. Significant contact noise may result with
            the kinematic contact algorithm when the slave nodes have
            significantly greater mass than the master nodes. Suggested
            workarounds include setting the WEIGHT parameter so that surface
            ASSEMBLY_SURF-CHARPY-UP is a pure slave surface in the contact
            pair, using mass-scaling to adjust the ratio of nodal masses, or
            using the penalty contact algorithm.

求大神指點