403 単純振動物理モデルによる多自由度軸振動解析

概要

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This paper describes the evaluation of analytical Simplified Rotor dynamics Model (SRM) under the multi-freedom condition. A gas turbine model test rig was used for evaluation. This test rig consisted of a rotor, two bearings and a casing. The casing was flexible and had many natural frequencies under the rated speed. SRM which consisted of the lumped-mass and beam-element was applied for the casing. First. SRM of the casing was constructed based on the measured natural frequencies of the casing. Second, the results of analysis and test of the rotor-bearing-casing system were compared and showed good agreement. Through these proving procedures, the propriety of SRM was confirmed. Further the influence of support structure element was investigated in simple manner by SRM. SRM was found to be useful analytical method for the rotor dynamic characteristics of multi-freedom vibration system
一般社団法人日本機械学会の論文
2000-09-01