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Title: System and method for inspecting parts using frequency response function

Abstract

A system and method for the non-destructive testing of additively manufactured parts. An input mechanism excites with an excitation force (e.g., a vibration) an additive manufacturing build platform on which the part is located to induce a dynamic response in the part. An output mechanism (e.g., a non-contact transducer) senses the induced dynamic response in the part. A processor determines and examines the relationship between the response and excitation to identify an indication of a defect in the part, and communicates an alert if the indication is identified. The processor may compare the phase, magnitude, coherence, or time delay of the relationship to a reference relationship and/or may compare the modal frequency or the modal damping to a reference to identify a deviation greater than a pre-established threshold.

Inventors:
;
Issue Date:
Research Org.:
Kansas City Plant (KCP), Kansas City, MO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600156
Patent Number(s):
10444110
Application Number:
14/941,258
Assignee:
Honeywell Federal Manufacturing & Technologies, LLC (Kansas City, MO)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
DOE Contract Number:  
NA0002839
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/13/2015
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Hartwig, Troy, and Brown, Ben. System and method for inspecting parts using frequency response function. United States: N. p., 2019. Web.
Hartwig, Troy, & Brown, Ben. System and method for inspecting parts using frequency response function. United States.
Hartwig, Troy, and Brown, Ben. Tue . "System and method for inspecting parts using frequency response function". United States. https://www.osti.gov/servlets/purl/1600156.
@article{osti_1600156,
title = {System and method for inspecting parts using frequency response function},
author = {Hartwig, Troy and Brown, Ben},
abstractNote = {A system and method for the non-destructive testing of additively manufactured parts. An input mechanism excites with an excitation force (e.g., a vibration) an additive manufacturing build platform on which the part is located to induce a dynamic response in the part. An output mechanism (e.g., a non-contact transducer) senses the induced dynamic response in the part. A processor determines and examines the relationship between the response and excitation to identify an indication of a defect in the part, and communicates an alert if the indication is identified. The processor may compare the phase, magnitude, coherence, or time delay of the relationship to a reference relationship and/or may compare the modal frequency or the modal damping to a reference to identify a deviation greater than a pre-established threshold.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {10}
}

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