Mounting lug with particle damping and method of manufacture
AssigneeHamilton Sundstrand Corporation
InventorJames Streeter
Life of this patent
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Abstract
A vibration damping component for a vehicle includes a housing, and a mounting lug attached to the housing. The mounting lug includes an outer shell with a top, a bottom, and sides. The mounting lug also includes a bore through the outer shell from the top to the bottom. The mounting lug also includes a cavity, an interior lattice, and a damping media. The outer shell and the bore enclose the cavity. The interior lattice is within the cavity and stiffens the mounting lug. The damping media is enclosed in the cavity and between solid portions of the interior lattice.
Claims20
A vibration damping component for a vehicle, the component comprising:
- a housing;
- and
- a mounting lug attached to the housing, the mounting lug comprising:
- an outer shell including a top, a bottom, and sides;
- a bore through the outer shell from the top to the bottom;
- a cavity enclosed by the outer shell and the bore;
- an interior lattice within the cavity and stiffening the mounting lug;
- and
- a damping media enclosed in the cavity and between solid portions of the interior lattice.
A method of additively manufacturing a vehicular component with a mounting lug having vibrational damping media, the method comprising:
- Additively manufacturing the component including a housing and a mounting lug, wherein additively manufacturing the mounting lug includes encasing a powder in an outer shell of the mounting lug;
- heating the component to densify solid portions of the component while maintaining the granular structure of the build powder encased in the mounting lug;
- and
- finishing a surface of the component.
A method of manufacturing an aerospace component with a mounting lug having vibrational damping media, the method comprising:
- additively manufacturing the component with a monolithic mounting lug;
- heating the component to remove residual stress in the component;
- removing build powder from the component;
- heating the component to create a desired microstructure in solidified portions of the component;
- filling the mounting lug with a secondary powder;
- sealing the secondary powder in the mounting lug;
- and
- finishing a surface of the component.
Dependencies are inferred from the claim text.