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Design of an Acoustic Instrument Automated Roving Impact Hammer CNC Platform.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Design of an Acoustic Instrument Automated Roving Impact Hammer CNC Platform./
Author:	Gervais, Owen S.
Description:	1 online resource (84 pages)
Notes:	Source: Masters Abstracts International, Volume: 83-12.
Contained By:	Masters Abstracts International83-12.
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=29167637click for full text (PQDT)
ISBN:	9798438784623

Design of an Acoustic Instrument Automated Roving Impact Hammer CNC Platform.
Gervais, Owen S.

Design of an Acoustic Instrument Automated Roving Impact Hammer CNC Platform. - 1 online resource (84 pages)

Source: Masters Abstracts International, Volume: 83-12.

Thesis (M.S.)--Tufts University, 2022.

Includes bibliographical references

Experimental modal analysis (the process of determining the dynamic parameters of a system through force excitation and sensing of the subsequent dynamic response) can be used to investigate the dynamic parameter differences between acoustic instruments. Various techniques to excite and sense the dynamic responses of a structure exist, such as manual roving impact hammer excitation; however, a standardized, automated approach of conducting experimental modal analysis would benefit these investigations of acoustic instruments. I present through this thesis an automated CNC-based roving impact platform for experimental modal analysis. The platform enables four-axis positioning of the impact hammer on the surface of the instrument and automated closed-loop control actuation of the impact hammer for accurate and repeatable excitation. The platform's movement and actuation are controlled through a suite of open-source software to keep accessory costs low and accessible to both researchers and instrument builders. Through this work, I demonstrated that the CNC roving impact platform increases the precision and accuracy of positioning and repeatability of impact hammer excitation compared to traditional hand actuation.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798438784623Subjects--Topical Terms:

649730
Mechanical engineering.
Subjects--Index Terms:

Experimental modal analysisIndex Terms--Genre/Form:

542853
Electronic books.

Design of an Acoustic Instrument Automated Roving Impact Hammer CNC Platform.
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245 1 0 $a Design of an Acoustic Instrument Automated Roving Impact Hammer CNC Platform.
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500 $a Source: Masters Abstracts International, Volume: 83-12.
500 $a Advisor: Rogers, Chris.
502 $a Thesis (M.S.)--Tufts University, 2022.
504 $a Includes bibliographical references
520 $a Experimental modal analysis (the process of determining the dynamic parameters of a system through force excitation and sensing of the subsequent dynamic response) can be used to investigate the dynamic parameter differences between acoustic instruments. Various techniques to excite and sense the dynamic responses of a structure exist, such as manual roving impact hammer excitation; however, a standardized, automated approach of conducting experimental modal analysis would benefit these investigations of acoustic instruments. I present through this thesis an automated CNC-based roving impact platform for experimental modal analysis. The platform enables four-axis positioning of the impact hammer on the surface of the instrument and automated closed-loop control actuation of the impact hammer for accurate and repeatable excitation. The platform's movement and actuation are controlled through a suite of open-source software to keep accessory costs low and accessible to both researchers and instrument builders. Through this work, I demonstrated that the CNC roving impact platform increases the precision and accuracy of positioning and repeatability of impact hammer excitation compared to traditional hand actuation.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Mechanical engineering. $3 649730
650 4 $a Acoustics. $3 879105
653 $a Experimental modal analysis
653 $a Acoustic instruments investigation
653 $a Repeatable excitation
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0548
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773 0 $t Masters Abstracts International $g 83-12.
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