機器・配管系の減衰同定法の評価に関する研究 : 第1報, シミュレーションによる同定法の適用性の考察(<特集> ダンピング)

概要

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This paper describes results of an investigation on identification methods for damping ratio of equipment from vibration test data. In this tudy, particular attention was paid to the applicability of two auto-regressive (AR) methods : the single-and double-variable AR methods (SVARM and DVARM). The investigation was carried out on the basis of numerical simulation using several analytical models. These are : linear models of a single-degree-of-freedom (SDOF) system and a pipe model supported at multiple points, and an SDOF inelastic model. The DVARM shows the highest accuracy in damping calculation not only for linear models but also for the nonlinear model described by the bilinear characteristic whose inelastic stiffness is within 80% of the elastic value.
一般社団法人日本機械学会の論文
1993-10-25