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Transient soil-structure interaction with consistent description of radiation damping
Ediansjah Zulkifli,Peter Ruge 국제구조공학회 2009 Structural Engineering and Mechanics, An Int'l Jou Vol.33 No.1
Radiation damping due to wave propagation in unbounded domains may cause a significant reduction of structural vibrations when excited near resonance. Here a novel matrix-valued algebraic Padélike stiffness formulation in the frequency-domain and a corresponding state equation in the time domain are elaborated for a soil-structure interaction problem with a layered soil excited in a transient manner by a flexible rotor during startup and shutdown. The contribution of radiation damping caused by a soil-layer upon a rigid bedrock is characterized by the corresponding amount of critical damping as it is used in structural dynamics.
Transient soil-structure interaction with consistent description of radiation damping
Zulkifli, Ediansjah,Ruge, Peter Techno-Press 2009 Structural Engineering and Mechanics, An Int'l Jou Vol.33 No.1
Radiation damping due to wave propagation in unbounded domains may cause a significant reduction of structural vibrations when excited near resonance. Here a novel matrix-valued algebraic Pad$\acute{e}$-like stiffness formulation in the frequency-domain and a corresponding state equation in the time domain are elaborated for a soil-structure interaction problem with a layered soil excited in a transient manner by a flexible rotor during startup and shutdown. The contribution of radiation damping caused by a soil-layer upon a rigid bedrock is characterized by the corresponding amount of critical damping as it is used in structural dynamics.