Modeling Dynamics of a Building Using a Portal Frame Approach
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Building service equipment, such as ventilators, air conditioners, and cooling tower are structure-borne sources that are capable of injecting vibration input power to the building structure. The vibration waves propagate through the building elements and can result in audible low frequency noise. This paper proposes the development of an analytical model of the dynamics of a building using a two-dimensional portal frame structure consisting of beam and truss elements. The structural response due to an injected force from a structure-borne source is studied and is compared with a three-dimensional model from the Finite Element Method. It is shown that the vibration pattern from the two-dimensional result follows the pattern of that from the three-dimensional model for vertical vibration. The two-dimensional model can thus be used for a simple modelling to understand the behavior of the building vibration.
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Cheah, Y., Putra, A., Lim, K., Ramlan, R., Muhammad, N., Identifying Structure-Borne Noise Transmission in Building, (2016) International Review of Mechanical Engineering (IREME), 10 (3), pp. 131-140.
M. Ohlrich, Predicting transmission of structure-borne sound power from machines by including terminal cross-coupling. Journal of Sound and Vibration, 330(21):5058–5076, 2011.
M. M. Späh, B. M Gibbs, Reception plate method for characterization of structure-borne sound sources in buildings: Assumptions and application, Applied Acoustics, 70(2), pp. 361-368, 2009.
S. Ljunggren, Transmission of structure-borne sound in buildings above railways, Applied Acoustics, 34(3), 193-205,1991.
P. Fiala, G.Degrande, and F. Augusztinovicz., Numerical modelling of ground-borne noise and vibration in buildings due to surface rail traffic, Journal of Sound and Vibration, Vol. 301(3), pp. 718-738, 2007.
S. Franc¸ois, M. Schevenels, G. Lombaert, P. Galv´ın, and G. Degrande. A 2.5D coupled FE-BE methodology for the dynamic interaction between longitudinally invariant structures and a layered halfspace. Computer Methods in Applied Mechanics and Engineering, 199(23-24):1536– 1548, 2010.
B.A.T Petersson, B. M. Gibbs, Towards a structure-borne sound source characterization, Applied Acoustics, 61(3), pp. 325-343, 2008.
A. T. Moorhouse, On the characteristic power of structure-borne sound sources, Journal of Sound and Vibration, 248(3), pp. 441-459, 2001.
A. Putra, N. F. Saari, H. Bakri, R. Ramlan, R. M. Dan, Characterization of Structure-Borne Sound Source Using Reception Plate Method,The Scientific World Journal 2013 (2013)
T. H. Alber, B. M. Gibbs, H. M. Fischer, Characterization of valves as sound sources: Structure-borne sound, Applied Acoustics, 70(5), pp. 661-673, 2009.
W. T. Thomson, Theory of vibration with applications, 4th Ed (Prentice-Hall, 1993).
M. Petyt, Introduction to finite element vibration analysis (Cambridge University Press, 1990).
Johnarry, N., Effective Vibration Length from Effective Buckling Length, (2016) International Review of Civil Engineering (IRECE), 7 (2), pp. 32-40.
Hashemi, S., Roach, A., A Dynamic Finite Element for Coupled Extensional-Torsional Vibration of Uniform Composite Thin-Walled Beams, (2016) International Review of Civil Engineering (IRECE), 7 (4), pp. 114-124.
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