Paper Titles
Preface
Numerical and Experimental Investigation of an Underplatform Damper Test Rig
p.1
Analysis of a Double Pendulum System with Joint Actuation by a Non-Linear Control
p.13
Application of a Shape Memory Absorber in Vibration Suppression
p.27
Dynamics of Starting of Vibrating Machines with Unbalanced Vibroexciters on Solid Body with Flat Vibrations
p.36
Increasing Practical Safety of Von Mises Truss via Control of Dynamic Escape
p.46
Dynamics of Beams under Coupled Thermo-Mechanical Loading
p.57
On Energy Transfer between Vibration Modes under Frequency-Varying Excitations for Energy Harvesting
p.65
Beating Effects in a Single Nonlinear Dynamical System in a Neighborhood of the Resonance
p.76

Numerical and Experimental Investigation of an Underplatform Damper Test Rig

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Abstract:

During operation mechanical structures can experience large vibration amplitudes. One of the challenges encountered in gas-turbine blade design is avoiding high-cycle fatigue failure usually caused by large resonance stresses driven by aeroelastic excitation. A common approach to control the amplitude levels relies on increasing friction damping by incorporating underplatform dampers (UPD). An accurate prediction of the dynamics of a blade-damper system is quite challenging, due to the highly nonlinear nature of the friction interfaces and detailed validation is required to ensure that a good modelling approach is selected. To support the validation process, a newly developed experimental damper rig will be presented, based on a set of newly introduced non-dimensional parameters that ensure a similar dynamic behaviour of the test rig to a real turbine blade-damper system. An ini- tial experimental investigation highlighted the sensitivity of the measured response with regards to settling and running in of the damper, and further measurements identified a strong dependence of the nonlinear behaviour to localised damper motion. Numerical simulations of the damper rig with a simple macroslip damper model were performed during the preliminary design, and a comparison to the measured data highlighted the ability of the basic implicit model to capture the resonance frequencies of the system accuratelyю

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Periodical:

Applied Mechanics and Materials (Volume 849)

Pages:

1-12

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.849.1

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Online since:

August 2016

Authors:

L. Pesaresi, L. Salles, R. Elliott, A. Jones, J.S. Green, C.W. Schwingshackl

Keywords:

Experimental Test Rig, Friction Damping, Nonlinear Dynamics, Turbine Blade Vibrations, Under Platform Dampers

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] B.A. Cowles, High cycle fatigue in aircraft gas turbine - an industry prospective, International Journal of Fracture, vol. 80, pp.147-163, (1996).

DOI: 10.1007/bf00012667

Google Scholar

[2] J. H. Griffin, A review of friction damping of turbine blade vibration, International Journal of Turbo and Jet Engines, vol. 7, pp.297-307, (1990).

DOI: 10.1515/tjj.1990.7.3-4.297

Google Scholar

[3] B. Feeny, N. Hinrichs, and K. Popp, A historical review on dry friction and stick-slip phenomena, Applied Mechanics Reviews, vol. 51, no. 5, pp.321-341, (1998).

DOI: 10.1115/1.3099008

Google Scholar

[4] L. Gaul and R. Nitsche, The role of friction In mechanical joints, Applied Mechanics Reviews, (2001).

Google Scholar

[5] J. P. Den Hartog, Forced vibrations with combined coulomb and viscous friction, ASME trans., pp.107-115, (1931).

DOI: 10.1115/1.4022656

Google Scholar

[6] G. C. K. Yeh, Forced vibrations of a two degree of freedom system with combined coulomb and viscous damping, The Journal of the Acoustical Society of America, vol. 39, no. 1, (1966).

DOI: 10.1121/1.1909863

Google Scholar

[7] J. H. Griffin, Friction Damping of Resonant Stresses in Gas Turbine Engine Airfoils, Journal of Engineering for Power, vol. 102, pp.329-333, (1980).

DOI: 10.1115/1.3230256

Google Scholar

[8] B. D. Yang and C. H. Menq, Characterization of Contact Kinematics and Application to the Design of Wedge Dampers in Turbomachinery Blading : Part 1 - Stick-Slip Contact Kinematics, Journal of Engineering for Gas Turbines and Power, vol. 120, no. April 1998, pp.410-417, (1998).

DOI: 10.1115/1.2818138

Google Scholar

[9] J. H. Wang and W. K. Chen, Investigation of the Vibration of a Blade With Friction Damper by HBM, Journal of Engineering for Gas Turbines and Power, vol. 115, no. April 1993, pp.294-299, (1993).

DOI: 10.1115/1.2906708

Google Scholar

[10] K. Y. Sanliturk, D. J. Ewins, and A. B. Stanbridge, Underplatform Dampers for Turbine Blades: Theoretical Modeling, Analysis, and Comparison With Experimental Data, Journal of Engineering for Gas Turbines and Power, vol. 123, no. 4, p.919, (2001).

DOI: 10.1115/1.1385830

Google Scholar

[11] E. P. Petrov, Explicit Finite Element Models of Friction Dampers in Forced Response Analysis of Bladed Disks, Journal of Engineering for Gas Turbines and Power, vol. 130, no. 2, p.022502, (2008).

DOI: 10.1115/1.2772633

Google Scholar

[12] M. Hajžman, L. Pešek, J. Brůha, V. Zeman, and D. Rychecký, Basic optimization methodology for the design of friction damping in blade shrouds, in Proceedings of ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, vol. 7A, (2013).

DOI: 10.1115/detc2013-13443

Google Scholar

[13] L. Pešek and L. Pust, Influence of dry friction damping on bladed disk vibration, in Vibration Problems ICOVP 2011: The 10th International Conference on Vibration Problems, pp.557-564, Springer Netherlands, (2011).

DOI: 10.1007/978-94-007-2069-5_75

Google Scholar

[14] J. H. Griffin, An Integrated Approach for Friction Damper Design, Journal of Vibration and Acoustics, vol. 1, no. April 1990, pp.175-181, (1990).

Google Scholar

[15] M. H. Jareland, A parametric study of a cottage-roof damper and comparison with experimental results, in Proceedings of ASME TURBOEXPO, pp.1-9, (2001).

Google Scholar

[16] L. Panning, W. Sextro, and K. Popp, Optimization of interblade friction damper design, in Proceedings of ASME TURBOEXPO, pp.1-8, (2000).

DOI: 10.1115/2000-gt-0541

Google Scholar

[17] C. M. Firrone, Measurement of the kinematics of two underplatform dampers with different geometry and comparison with numerical simulation, Journal of Sound and Vibration, vol. 323, pp.313-333, June (2009).

DOI: 10.1016/j.jsv.2008.12.019

Google Scholar

[18] I. a. Sever, E. P. Petrov, and D. J. Ewins, Experimental and Numerical Investigation of Rotating Bladed Disk Forced Response Using Underplatform Friction Dampers, Journal of Engineering for Gas Turbines and Power, vol. 130, no. 4, p.042503, (2008).

DOI: 10.1115/1.2903845

Google Scholar

[19] T. Berruti, A test rig for the investigation of the dynamic response of a bladed disk with underplatform dampers, Mechanics Research Communications, vol. 37, pp.581-583, Sept. (2010).

DOI: 10.1016/j.mechrescom.2010.07.008

Google Scholar

[20] T. Berruti, C. M. Firrone, and M. M. Gola, A Test Rig for Noncontact Traveling Wave Excitation of a Bladed Disk With Underplatform Dampers, Journal of Engineering for Gas Turbines and Power, vol. 133, no. 3, p.032502, (2011).

DOI: 10.1115/1.4002100

Google Scholar

[21] E. P. Petrov and D. J. Ewins, Advanced Modeling of Underplatform Friction Dampers for Analysis of Bladed Disk Vibration, Journal of Turbomachinery, vol. 129, no. 1, p.143, (2007).

DOI: 10.1115/1.2372775

Google Scholar

[22] R. K. Giridhar, P. V. Ramaiah, G. Krishnaiah, and S. G. Barad, Gas Turbine Blade Damper Optimization Methodology, Advances in Acoustics and Vibration, vol. 2012, pp.1-13, (2012).

DOI: 10.1155/2012/316761

Google Scholar

[23] C. W. Schwingshackl, C. Joannin, L. Pesaresi, J. S. Green, and N. Hoffmann, Test method development for nonlinear damping extraction of dovetail joints, in Proceedings of the Society for Experimental Mechanics IMAC Conference, (2014).

DOI: 10.1007/978-3-319-04501-6_21

Google Scholar

[24] S. Smith, J. Bilbao-Ludena, S. Catalfamo, M. Brake, P. Reuß, and C. W. Schwingshackl, The effects of boundary conditions, measurement techniques, and excitation type on measurements of the properties of mechanical joints, in Proceedings of the Society for Experimental Mechanics IMAC Conference, (2016).

DOI: 10.1007/978-3-319-15221-9_36

Google Scholar

[25] E. P. Petrov and D. J. Ewins, State-of-the-art dynamic analysis for non-linear gas turbine structures, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, vol. 218, pp.199-211, Jan. (2004).

DOI: 10.1243/0954410041872906

Google Scholar

[26] E. P. Petrov and D. J. Ewins, Analytical Formulation of Friction Interface Elements for Analysis of Nonlinear Multi-Harmonic Vibrations of Bladed Disks, Journal of Turbomachinery, vol. 125, no. 2, p.364, (2003).

DOI: 10.1115/1.1539868

Google Scholar

[27] E. P. Petrov, A High-Accuracy Model Reduction for Analysis of Nonlinear Vibrations in Structures With Contact Interfaces, Journal of Engineering for Gas Turbines and Power, vol. 133, no. 10, p.102503, (2011).

DOI: 10.1115/1.4002810

Google Scholar

[28] C. W. Schwingshackl, E. P. Petrov, and D. J. Ewins, Effects of Contact Interface Parameters on Vibration of Turbine Bladed Disks With Underplatform Dampers, Journal of Engineering for Gas Turbines and Power, vol. 134, no. 3, p.032507, (2012).

DOI: 10.1115/1.4004721

Google Scholar

[29] C. W. Schwingshackl, E. P. Petrov, and D. J. Ewins, Measured and estimated friction interface parameters in a nonlinear dynamic analysis, Mechanical Systems and Signal Processing, vol. 28, pp.574-584, Apr. (2012).

DOI: 10.1016/j.ymssp.2011.10.005

Google Scholar

[30] C. W. Schwingshackl, Measurement of Friction Contact Parameters for Nonlinear Dynamic Analysis, in Proceedings of the Society for Experimental Mechanics IMAC Conference, (2012).

Google Scholar

[31] J. S. Green, Controlling Forced Response of a High Pressure Turbine Blade. PhD thesis, KTH Royal Institute of Technology, (2006).

Google Scholar