Browse > Article
http://dx.doi.org/10.5050/KSNVN.2008.18.2.185

Optimal Layout Design of Frequency- and Temperature-dependent Viscoelastic Materials for Maximum Loss Factor of Constrained-Layer Damping Beam  

Lee, Doo-Ho (동의대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.2, 2008 , pp. 185-191 More about this Journal
Abstract
Optimal damping layout of the constrained viscoelastic damping layer on beam is identified with temperatures by using a gradient-based numerical search algorithm. An optimal design problem is defined in order to determine the constrained damping layer configuration. A finite element formulation is introduced to model the constrained layer damping beam. The four-parameter fractional derivative model and the Arrhenius shift factor are used to describe dynamic characteristics of viscoelastic material with respect to frequency and temperature. Frequency-dependent complex-valued eigenvalue problems are solved by using a simple re-substitution algorithm in order to obtain the loss factor of each mode and responses of the structure. The results of the numerical example show that the proposed method can reduce frequency responses of beam at peaks only by reconfiguring the layout of constrained damping layer within a limited weight constraint.
Keywords
Viscoelastic Material; Constrained-layer Damping; Loss Factor; Frequency- and Temperature-dependent Dynamic Characteristics; Damping Layer Optimization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Zheng, H., Cai, C. and Tan, X. M., 2004, 'Optimization of Partial Constrained Layer Damping Treatment for Vibrational Energy Minimization of Vibrating Beams', Computers & Structures, Vol. 82, pp. 2493-2507   DOI   ScienceOn
2 Lee, D.-H., 2005, 'Optimal Treatment of Unconstrained Visco-elastic Damping Layer on Beam to Minimize Vibration Responses', Transactions of the Korean Society of Noise and Vibration Engineering, Vol. 15, No. 7, pp. 645-651   DOI   ScienceOn
3 Lee, D.-H., 2006, 'Optimal Placement of a Constrained Damping Layer for Reduction of Interior Noise', 11th AIAA/ISSMO Multi- disciplinary Analysis and Optimization Conference, Portsmouth
4 DOT Users Manual Version 5.X, VR & D Inc, 2001
5 Lesieutre, G. A. and Lee, U., 1996, 'A Finite Element for Beams Having Segmented Active Cons-trained Layers with Frequency- dependent Viscoelastics', Smart Mater. Struct., Vol. 5, pp. 615-627   DOI   ScienceOn
6 Jones, D.I.G., 2001, Handbook of Viscoelastic Vibration Damping, New York: John Wiley & Sons
7 Hajela, P. and Lin, C.-Y., 1991, 'Optimal Design of Viscoelastically Damped Beam', Appl. Mech. Rev., Vol. 44, No. 11, pp. S96-S106   DOI
8 Ro, J. and Baz, A., 1995, 'Optimum Design and Control of Partial Active Constrained Layer Damping Treatments', Proceedings of the American Control Conference (Seattle, USA), pp. 4183-4187
9 Marcelin, J. L., Trompette, P. and Dornberger, R., 1995, 'Optimization of Composite Beam Structures Using a Genetic Algorithm', Structural Optimization, Vol. 9, pp. 236-244   DOI   ScienceOn
10 Kim, T. W. and Kim, J. H., 2004, 'Eigenvalue Sensitivity Based Topological Optimization for Passive Constrained Layer Damping], 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference (Pam Springs, USA, 2004), AIAA-2004-1904