Abstract
The key parameter in vibration damping system is a damping coefficient However, this parameter is difficult to estimate in a certain situation, e.g. noisy condition. In this report, a method for estimating the coefficient using Hilbert transform is proposed and investigated to overcome the difficulty. At first, it is cleared that the proposed methods is available for this purpose experimentally. Then, by simulation, the characteristics of the estimated value are discussed, and it is made clear that the accurate value can be estimated by the method comparing with a conventional one based on logarithmic decrement theory.
