# US 2021/0082384 A1 · Friction damped insert for highly stressed engineering components > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0082384 A1 - Document ID: US20210082384A1 - Status: Published application - Kind: A1 - Application number: 17/108,712 - Filed: 2020-12-01 - Published: 2021-03-18 - Earliest claimed: 2018-12-04 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Yuri Karpenko - Web page: https://patentgrep.com/patent/US20210082384A1 ## CPC - F16F 7/1028: {the inertia-producing means being a constituent part of the system which is to be damped} - G10K 11/162: Selection of materials - B29C 49/071: {Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties} - B29C 70/68: by incorporating or moulding on preformed parts, e.g. inserts or layers {, e.g. foam blocks (mould constructions therefor B29C33/12; joining preformed parts by moulding B29C65/70)} - F16F 7/00: Vibration-dampers; Shock-absorbers (using fluid F16F5/00, F16F9/00; specific for rotary systems F16F15/10 {; belt tensioners F16H7/12}) - B29C 2949/0715: the preform having one end closed - B29K 2995/0002: insulating - B29K 2995/0091: Damping, energy absorption - F16F 2222/08: Inertia - F16F 2226/04: Assembly or fixing methods; methods to form or fashion parts - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS ## Abstract A friction damped insert for highly stressed engineering components is disclosed. The disclosed inventive concept provides a method and system for increasing the damping capacity of an engineering system by adding a non-flat solid, highly damped insert to a system component that contributes most to the system's dynamic response. The insert can either be embedded into a system component during casting or be fastened to the system component outer surface. The insert is made of the single layer of flexible material by forming it into a rigid elongated body. The layer of material can be turned over on itself without folding to create a cylinder or can be folded over a number of times to create a prismatic bar. The layer of material may be shaped into a corrugated panel. The layer of flexible material may have a number of relatively small openings or perforations with a uniform spatial distribution. ## Claims ### Claim at position 1 1-20 (canceled) ### Claim 21 A method for forming a damped component, the method comprising: forming a friction damped insert associated with said component body, said friction damped insert being formed from at least one portion of a sheet of flexible material, said sheet of flexible material having first and second sides, said sheet of flexible material being folded over itself whereby a portion of said first side contacts a portion of said second side forming a non-flat elongated body; forming a component to be damped; and attaching said friction damped insert to said component to be damped. ### Claim 22 (depends on 21) The method for forming the damped component of claim 21, including forming perforations in said sheet of flexible material. ### Claim 23 (depends on 22) The method for forming the damped component of claim 22, including forming a component mold, positioning said friction damped insert in said mold, and introducing a molten component bulk material into said mold to surround said friction damped insert and to infuse a portion of said molten component bulk material into said perforations. ### Claim 24 (depends on 21) The method for forming the damped component of claim 21, wherein said sheet of flexible material is selected from the group consisting of a metal and a plastic. ### Claim 25 (depends on 22) The method for forming the damped component of claim 22, wherein said perforations extend between said first side and said second side of said sheet of flexible material. ### Claim 26 (depends on 21) The method for forming the damped component of claim 21, wherein said sheet of flexible material is folded over itself in the shape of a prismatic bar. ### Claim 27 (depends on 21) The method for forming the damped component of claim 21, wherein said sheet of flexible material include at least one corrugation, said at least one corrugation having a frictional interface. ### Claim 28 (depends on 27) The method for forming the damped component of claim 27, wherein said at least one corrugation comprises a plurality of corrugations, each of said plurality of corrugations being formed on one side of said first side or said second side. ### Claim 29 (depends on 27) The method for forming the damped component of claim 27, wherein said at least one corrugation comprises a plurality of corrugations, each of said plurality of corrugations being formed on both said first side and said second side.