Abstract: A tri-adaptive apparatus is disclosed and configured for functioning as a dynamic force isolation and dampening metamaterial that reduces the transmission of dynamic forces between a dynamic force source and an object. In at least one embodiment, the apparatus provides at least one cell unit that provides a pair of opposing first and second cell plates, between which is positioned at least one spring, restrainer and dashpot. An outer surface of the first cell plate is positioned in contact with the dynamic force source. An outer surface of the second cell plate is positioned in contact with the object. The at least one spring, restrainer and dashpot are configured for transferring dynamic force energy mutually between one another while deforming mechanically in response to the dynamic forces transmitted by the dynamic force source.

Abstract: A tri-adaptive apparatus is disclosed and configured for functioning as a dynamic force isolation and dampening metamaterial that reduces the transmission of dynamic forces between a dynamic force source and an object. In at least one embodiment, the apparatus provides at least one cell unit that provides a pair of opposing first and second cell plates, between which is positioned at least one spring, restrainer and dashpot. An outer surface of the first cell plate is positioned in contact with the dynamic force source. An outer surface of the second cell plate is positioned in contact with the object. The at least one spring, restrainer and dashpot are configured for transferring dynamic force energy mutually between one another while deforming mechanically in response to the dynamic forces transmitted by the dynamic force source.

Abstract: A vibration absorbing apparatus is disclosed for functioning as a practical mechanical metamaterial for anisotropic vibration control. In at least one embodiment, the apparatus provides a plurality of rail units positioned in a side-by-side arrangement so as to form at least one rail unit layer. Each rail unit provides a first plate and an opposing second plate slidably engaged with the first plate. The first plate provides at least one substantially linear slide rail extending therefrom. The second plate provides a corresponding at least one substantially linear slot sized for slidably receiving the corresponding at least one slide rail. At least one resilient connector extends between the first and second plates so as to maintain slidable engagement between the first and second plates. Additionally, the at least one slot of each rail unit of the at least one rail unit layer is oriented in substantially the same direction.

Abstract: A vibration absorbing apparatus is disclosed for functioning as a practical mechanical metamaterial for anisotropic vibration control. In at least one embodiment, the apparatus provides a plurality of rail units positioned in a side-by-side arrangement so as to form at least one rail unit layer. Each rail unit provides a first plate and an opposing second plate slidably engaged with the first plate. The first plate provides at least one substantially linear slide rail extending therefrom. The second plate provides a corresponding at least one substantially linear slot sized for slidably receiving the corresponding at least one slide rail. At least one resilient connector extends between the first and second plates so as to maintain slidable engagement between the first and second plates. Additionally, the at least one slot of each rail unit of the at least one rail unit layer is oriented in substantially the same direction.

Abstract: Seismic protection materials are derived from assemblages of unit cells, where each of the cells has a core, one or more shells disposed about the core, and rigid plates bounding the shells. The cores limit relative vertical movement between the plates, and the shell(s) limit relative lateral motion between the plates. Uncompressed cores are preferably substantially spherical or cylindrical, and can be solid or hollow. Unit cells can be aligned in same or different directions, both within a given layer of cells, and in different layers of cells. Assemblages can have any suitable overall shape and size, depending upon application, and for example can support objects ranging from table top equipment to large buildings and bridges.

Abstract: Seismic protection materials are derived from assemblages of unit cells, where each of the cells has a core, one or more shells disposed about the core, and rigid plates bounding the shells. The cores limit relative vertical movement between the plates, and the shell(s) limit relative lateral motion between the plates. Uncompressed cores are preferably substantially spherical or cylindrical, and can be solid or hollow. Unit cells can be aligned in same or different directions, both within a given layer of cells, and in different layers of cells. Assemblages can have any suitable overall shape and size, depending upon application, and for example can support objects ranging from table top equipment to large buildings and bridges.