Lattice design for energy absorption and vibration damping applications
AssigneeHoneywell Federal Manufacturing & Technologies, LLC
InventorsZachariah Rueger, Amer Sadikovic
Life of this patent
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Abstract
A lattice structure and system for absorbing energy, damping vibration, and reducing shock. The lattice structure comprises a plurality of unit cells, each unit cell comprising a plurality of rib elements with at least a portion of the rib elements including a solid bendable hinge portion for converting energy into linear motion along a longitudinal axis of the respective rib element.
Claims20
A unit cell for absorbing energy within a lattice structure, the unit cell comprising:
- a plurality of rib elements, at least one rib element of the plurality of rib elements comprising:
- one or more bendable solid hinge portions,
- wherein each of the one or more bendable solid hinge portions are configured to absorb energy by converting the energy into linear motion along a longitudinal axis of the respective rib element, and
- wherein at least one rib element of the plurality of rib elements is compliant in axial compression and tension but resistant in torsion.
A lattice structure for absorbing energy, the lattice structure comprising a plurality of unit cells, each unit cell of the plurality of unit cells comprising:
- a plurality of rib elements, at least one rib element of the plurality of rib elements comprising:
- at least one Sarrus linkage having one or more bendable solid hinge portions,
- wherein the at least one Sarrus linkage is configured to absorb energy by converting the energy into linear motion along a longitudinal axis of the respective rib element, and
- wherein at least one rib element of the plurality of rib elements is compliant in axial compression and tension but resistant in torsion.
A system for absorbing energy, the system comprising:
- a lattice structure comprising a plurality of identical unit cells, each identical unit cell comprising:
- a plurality of rib elements, wherein each rib element of a first portion of the plurality of rib elements comprises:
- one or more bendable solid hinge portions configured to absorb energy within the lattice structure by converting the energy into linear motion along a longitudinal axis of the respective rib element, and
- wherein the lattice structure is anisotropic.
Dependencies are inferred from the claim text.