Abstract
In this chapter, the response characteristics for material, hysteretic, and friction damping mechanisms are examined for a single-degree-of-freedom (SDOF) system. The concept of equivalent viscous damping is introduced and is used to express viscoelastic, structural, and hysteretic damping in terms of their equivalent viscous counterpart. Numerical simulations are presented to demonstrate the validity of this concept for SDOF systems subjected to seismic excitation. This introductory material is followed by a discussion of the influence of distributed viscous damping on the deformation profiles of multi-degree-of-freedom systems. The damping distribution is initially taken to be proportional to the stiffness distribution generated in the previous chapter, and then modified to allow for non-proportional damping. Numerical results and deformation profiles for a range of structures subjected to seismic loading are presented, and the adequacy of this approach for distributing damping is assessed.
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Connor, J., Laflamme, S. (2014). Optimal Passive Damping Distribution. In: Structural Motion Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-06281-5_4
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DOI: https://doi.org/10.1007/978-3-319-06281-5_4
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