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 vibration damping within a three-dimensional lattice structure that is additively manufactured, the unit cell comprising:
- a plurality of rib elements, at least one rib element of the plurality of rib elements comprising:
- four or more bendable solid hinge portions that are additively manufactured and oriented along at least two distinct planes of the respective rib element,
- wherein each of the four 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 to thereby dampen vibration within the three-dimensional lattice structure;
- wherein a first rib element of the plurality of rib elements is oriented in a first direction, and a second rib element of the plurality of rib elements is oriented in a second direction distinct from the first direction such that energy is absorbed by the three-dimensional lattice structure in both the first direction and the second direction.
A three-dimensional lattice structure that is additively manufactured for vibration damping, the three-dimensional 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 four or more bendable solid hinge portions that are additively manufactured and oriented along at least two distinct planes of the respective rib element,
- 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 to thereby dampen vibration within the three-dimensional lattice structure;
- wherein a first rib element of the plurality of rib elements is oriented in a first direction, and a second rib element of the plurality of rib elements is oriented in a second direction distinct from the first direction such that energy is absorbed by the three-dimensional lattice structure in both the first direction and the second direction.
A system for vibration damping, the system comprising:
- a three-dimensional lattice structure that is additively manufactured 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:
- four or more bendable solid hinge portions that are additively manufactured and configured to absorb energy within the three-dimensional lattice structure by converting the energy into linear motion along a longitudinal axis of the respective rib element to thereby dampen vibration within the three-dimensional lattice structure,
- wherein the four or more bendable solid hinge portions are oriented along at least two distinct planes of the respective rib element,
- wherein a first rib element of the plurality of rib elements is oriented in a first direction, and a second rib element of the plurality of rib elements is oriented in a second direction distinct from the first direction such that energy is absorbed by the three-dimensional lattice structure in both the first direction and the second direction.
Dependencies are inferred from the claim text.