Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results

Dallas W. Kingsbury; Anthony M. Agelastos; Guido Dietz; Marc Mignolet; Danny D. Liu; Günter Schewe

Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results

Dallas W. Kingsbury, Anthony M. Agelastos, Guido Dietz, Marc Mignolet, Danny D. Liu, Günter Schewe

Mechanical and Aerospace Engineering

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

7 Scopus citations

Abstract

This paper reports on the design, fabrication, and testing of a friction generating device connected to an airfoil to assess the effects of internal friction on limit cycle oscillations. Preliminary shaker testing in the ASU vibrations laboratory successfully validated the design. Full blown testing was then carried out at DLR in the DNW-TWG transonic wind tunnel and limit cycle oscillations with internal friction effects were observed and measured. These first measurements demonstrated a slight benefit of friction but also showed the subcritical nature of the observed limit cycle oscillations which is clarified. A different design is proposed for future tests that should lead to supercritical limit cycle oscillations.

Original language	English (US)
Title of host publication	Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Pages	1412-1422
Number of pages	11
Volume	2
State	Published - 2005
Event	46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Austin, TX, United States Duration: Apr 18 2005 → Apr 21 2005

Other

Other	46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Country/Territory	United States
City	Austin, TX
Period	4/18/05 → 4/21/05

ASJC Scopus subject areas

Architecture

Cite this

Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results. / Kingsbury, Dallas W.; Agelastos, Anthony M.; Dietz, Guido et al.
Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. Vol. 2 2005. p. 1412-1422.

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

Kingsbury, DW, Agelastos, AM, Dietz, G, Mignolet, M, Liu, DD & Schewe, G 2005, Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results. in Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference. vol. 2, pp. 1412-1422, 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Austin, TX, United States, 4/18/05.

@inproceedings{969660ffb9b848d0aba40c0fa16c9216,

title = "Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results",

abstract = "This paper reports on the design, fabrication, and testing of a friction generating device connected to an airfoil to assess the effects of internal friction on limit cycle oscillations. Preliminary shaker testing in the ASU vibrations laboratory successfully validated the design. Full blown testing was then carried out at DLR in the DNW-TWG transonic wind tunnel and limit cycle oscillations with internal friction effects were observed and measured. These first measurements demonstrated a slight benefit of friction but also showed the subcritical nature of the observed limit cycle oscillations which is clarified. A different design is proposed for future tests that should lead to supercritical limit cycle oscillations.",

author = "Kingsbury, {Dallas W.} and Agelastos, {Anthony M.} and Guido Dietz and Marc Mignolet and Liu, {Danny D.} and G{\"u}nter Schewe",

year = "2005",

language = "English (US)",

volume = "2",

pages = "1412--1422",

booktitle = "Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference",

note = "46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference ; Conference date: 18-04-2005 Through 21-04-2005",

}

TY - GEN

T1 - Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results

AU - Kingsbury, Dallas W.

AU - Agelastos, Anthony M.

AU - Dietz, Guido

AU - Mignolet, Marc

AU - Liu, Danny D.

AU - Schewe, Günter

PY - 2005

Y1 - 2005

N2 - This paper reports on the design, fabrication, and testing of a friction generating device connected to an airfoil to assess the effects of internal friction on limit cycle oscillations. Preliminary shaker testing in the ASU vibrations laboratory successfully validated the design. Full blown testing was then carried out at DLR in the DNW-TWG transonic wind tunnel and limit cycle oscillations with internal friction effects were observed and measured. These first measurements demonstrated a slight benefit of friction but also showed the subcritical nature of the observed limit cycle oscillations which is clarified. A different design is proposed for future tests that should lead to supercritical limit cycle oscillations.

AB - This paper reports on the design, fabrication, and testing of a friction generating device connected to an airfoil to assess the effects of internal friction on limit cycle oscillations. Preliminary shaker testing in the ASU vibrations laboratory successfully validated the design. Full blown testing was then carried out at DLR in the DNW-TWG transonic wind tunnel and limit cycle oscillations with internal friction effects were observed and measured. These first measurements demonstrated a slight benefit of friction but also showed the subcritical nature of the observed limit cycle oscillations which is clarified. A different design is proposed for future tests that should lead to supercritical limit cycle oscillations.

UR - http://www.scopus.com/inward/record.url?scp=28844442358&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28844442358&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:28844442358

VL - 2

SP - 1412

EP - 1422

BT - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

T2 - 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference

Y2 - 18 April 2005 through 21 April 2005

ER -

Limit cycle oscillations of aeroelastic systems with internal friction in the transonic domain - Experimental results

Abstract

Other

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this