Computation of the optimal normal load of a friction damper under different types of excitation

D. Cha; A. Sinha

doi:10.1115/99-GT-413

Computation of the optimal normal load of a friction damper under different types of excitation

D. Cha, A. Sinha

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

4 Scopus citations

Abstract

In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.

Original language	English (US)
Title of host publication	Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791878613
DOIs	https://doi.org/10.1115/99-GT-413
State	Published - 1999
Event	ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999 - Indianapolis, United States Duration: Jun 7 1999 → Jun 10 1999

Publication series

Name	Proceedings of the ASME Turbo Expo
Volume	4

Other

Other	ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999
Country/Territory	United States
City	Indianapolis
Period	6/7/99 → 6/10/99

All Science Journal Classification (ASJC) codes

General Engineering

Access to Document

10.1115/99-GT-413

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Cha, D., & Sinha, A. (1999). Computation of the optimal normal load of a friction damper under different types of excitation. In Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General (Proceedings of the ASME Turbo Expo; Vol. 4). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/99-GT-413

Cha, D. ; Sinha, A. / Computation of the optimal normal load of a friction damper under different types of excitation. Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. American Society of Mechanical Engineers (ASME), 1999. (Proceedings of the ASME Turbo Expo).

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title = "Computation of the optimal normal load of a friction damper under different types of excitation",

abstract = "In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.",

author = "D. Cha and A. Sinha",

note = "Publisher Copyright: Copyright {\textcopyright} 1999 by ASME.; ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999 ; Conference date: 07-06-1999 Through 10-06-1999",

year = "1999",

doi = "10.1115/99-GT-413",

language = "English (US)",

series = "Proceedings of the ASME Turbo Expo",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General",

}

Cha, D & Sinha, A 1999, Computation of the optimal normal load of a friction damper under different types of excitation. in Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. Proceedings of the ASME Turbo Expo, vol. 4, American Society of Mechanical Engineers (ASME), ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition, GT 1999, Indianapolis, United States, 6/7/99. https://doi.org/10.1115/99-GT-413

Computation of the optimal normal load of a friction damper under different types of excitation. / Cha, D.; Sinha, A.
Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. American Society of Mechanical Engineers (ASME), 1999. (Proceedings of the ASME Turbo Expo; Vol. 4).

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

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N2 - In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.

AB - In this paper, forced responses of a frictionally damped turbine blade are investigated for three different types of excitation: white noise excitation, narrow band random excitation and deterministic sinusoidal excitation. To determine the steady state nonlinear response, the harmonic balance method is used for sinusoidal excitation, and the equivalent linearization method is used for white noise and narrow band random excitations. Using a new set of nondimensionalized variables, the optimal value of normal load of a friction damper is found to be almost independent of the nature of excitation. The effectiveness of the damper in reducing the vibration level is also examined for the aforementioned three different types of excitation.

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BT - Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General

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Cha D, Sinha A. Computation of the optimal normal load of a friction damper under different types of excitation. In Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General. American Society of Mechanical Engineers (ASME). 1999. (Proceedings of the ASME Turbo Expo). doi: 10.1115/99-GT-413

Computation of the optimal normal load of a friction damper under different types of excitation

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