System identification for boring BAR chatter control

Jonathan A. Embry; Suzanne Weaver Smith; Bruce L. Walcott

doi:10.1115/DETC1993-0235

System identification for boring BAR chatter control

Jonathan A. Embry, Suzanne Weaver Smith, Bruce L. Walcott

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The boring bar is used to provide smooth, accurate cuts in materials. However, when the length to diameter (L/D) ratio of the boring bar becomes large, low-frequency vibration, or chatter, results. Initial attempts to control this unwanted vibration with an active absorber have been successful, but in some configurations problems remain. In this paper, algorithms for flexible structure identification widely used in the aerospace industry are applied to a number of boring bar setups to identify the vibration characteristics of each system. Emphasis is placed on one class of methods which includes the Eigensystem Realization Algorithm (ERA), developed for identification of flexible space structures. The resulting identified characteristics are compared and contrasted. Results are also compared to finite element analysis predictions. From the current identification results, implications for chatter control are discussed, including the possibility of nonlinear modal interactions.

Original language	English
Title of host publication	14th Biennial Conference on Mechanical Vibration and Noise
Subtitle of host publication	Vibration and Control of Mechanical Systems
Pages	199-207
Number of pages	9
ISBN (Electronic)	9780791811771
DOIs	https://doi.org/10.1115/DETC1993-0235
State	Published - 1993
Event	ASME 1993 Design Technical Conferences, DETC 1993 - Albuquerque, United States Duration: Sep 19 1993 → Sep 22 1993

Publication series

Name	Proceedings of the ASME Design Engineering Technical Conference
Volume	Part F167972-9

Conference

Conference	ASME 1993 Design Technical Conferences, DETC 1993
Country/Territory	United States
City	Albuquerque
Period	9/19/93 → 9/22/93

Bibliographical note

Publisher Copyright:
© 1993 American Society of Mechanical Engineers (ASME). All rights reserved.

ASJC Scopus subject areas

Mechanical Engineering
Computer Graphics and Computer-Aided Design
Computer Science Applications
Modeling and Simulation

Access to Document

10.1115/DETC1993-0235

Cite this

@inproceedings{b0606f06f80e4a33887e23f27d064178,

title = "System identification for boring BAR chatter control",

abstract = "The boring bar is used to provide smooth, accurate cuts in materials. However, when the length to diameter (L/D) ratio of the boring bar becomes large, low-frequency vibration, or chatter, results. Initial attempts to control this unwanted vibration with an active absorber have been successful, but in some configurations problems remain. In this paper, algorithms for flexible structure identification widely used in the aerospace industry are applied to a number of boring bar setups to identify the vibration characteristics of each system. Emphasis is placed on one class of methods which includes the Eigensystem Realization Algorithm (ERA), developed for identification of flexible space structures. The resulting identified characteristics are compared and contrasted. Results are also compared to finite element analysis predictions. From the current identification results, implications for chatter control are discussed, including the possibility of nonlinear modal interactions.",

author = "Embry, {Jonathan A.} and Smith, {Suzanne Weaver} and Walcott, {Bruce L.}",

note = "Publisher Copyright: {\textcopyright} 1993 American Society of Mechanical Engineers (ASME). All rights reserved.; ASME 1993 Design Technical Conferences, DETC 1993 ; Conference date: 19-09-1993 Through 22-09-1993",

year = "1993",

doi = "10.1115/DETC1993-0235",

language = "English",

series = "Proceedings of the ASME Design Engineering Technical Conference",

pages = "199--207",

booktitle = "14th Biennial Conference on Mechanical Vibration and Noise",

}

Embry, JA, Smith, SW & Walcott, BL 1993, System identification for boring BAR chatter control. in 14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems. Proceedings of the ASME Design Engineering Technical Conference, vol. Part F167972-9, pp. 199-207, ASME 1993 Design Technical Conferences, DETC 1993, Albuquerque, United States, 9/19/93. https://doi.org/10.1115/DETC1993-0235

System identification for boring BAR chatter control. / Embry, Jonathan A.; Smith, Suzanne Weaver; Walcott, Bruce L.
14th Biennial Conference on Mechanical Vibration and Noise: Vibration and Control of Mechanical Systems. 1993. p. 199-207 (Proceedings of the ASME Design Engineering Technical Conference; Vol. Part F167972-9).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Walcott, Bruce L.

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N2 - The boring bar is used to provide smooth, accurate cuts in materials. However, when the length to diameter (L/D) ratio of the boring bar becomes large, low-frequency vibration, or chatter, results. Initial attempts to control this unwanted vibration with an active absorber have been successful, but in some configurations problems remain. In this paper, algorithms for flexible structure identification widely used in the aerospace industry are applied to a number of boring bar setups to identify the vibration characteristics of each system. Emphasis is placed on one class of methods which includes the Eigensystem Realization Algorithm (ERA), developed for identification of flexible space structures. The resulting identified characteristics are compared and contrasted. Results are also compared to finite element analysis predictions. From the current identification results, implications for chatter control are discussed, including the possibility of nonlinear modal interactions.

AB - The boring bar is used to provide smooth, accurate cuts in materials. However, when the length to diameter (L/D) ratio of the boring bar becomes large, low-frequency vibration, or chatter, results. Initial attempts to control this unwanted vibration with an active absorber have been successful, but in some configurations problems remain. In this paper, algorithms for flexible structure identification widely used in the aerospace industry are applied to a number of boring bar setups to identify the vibration characteristics of each system. Emphasis is placed on one class of methods which includes the Eigensystem Realization Algorithm (ERA), developed for identification of flexible space structures. The resulting identified characteristics are compared and contrasted. Results are also compared to finite element analysis predictions. From the current identification results, implications for chatter control are discussed, including the possibility of nonlinear modal interactions.

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System identification for boring BAR chatter control

Abstract

Publication series

Conference

Bibliographical note

ASJC Scopus subject areas

Access to Document

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