2009•Ocean EngineeringRequires access

Measurement of equivalent damping force of TMD based on semi-simulation experimental testing system

Xiaohui Liu

Abstract

In order to assess the reduction effectiveness of TMD to mitigate ice-induced vibrations of platforms,the method of measurement of equivalent damping force of TMD based on semi-simulation experimental testing system is presented. The interaction force between TMD and structure can be measured directly by this system.In this paper,the principle and the method of force measurement are introduced.The force comparison between experimental value and calculated one is made under sinusoidal displacement input.Experimental results show that the force measured from load cell is almost equal to the inertial force of TMD.Therefore, the feasibility of using this system to measure equivalent damping force of TMD is confirmed.

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Available abstract

Key concepts: Load cell, Fictitious force, Displacement (psychology), Vibration, Structural engineering, Inertial frame of reference, Impact, Reduction (mathematics)