Validation of computer-generated results with experimental data obtained for torsional vibration of synchronous motor-driven turbomachinery

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Title: Validation of computer-generated results with experimental data obtained for torsional vibration of synchronous motor-driven turbomachinery
Author: Ganatra, Nirmal Kirtikumar
Abstract: Torsional vibration is an oscillatory angular twisting motion in the rotating members of a system . It can be deemed quite dangerous in that it cannot be detected as easily as other forms of vibration , and hence , subsequent failures that it leads to are often abrupt and may cause direct breakage of the shafts of the drive train . The need for sufficient analysis during the design stage of a rotating machine is , thus , well justified in order to avoid expensive modifications during later stages of the manufacturing process . In 1998 , a project was initiated by the Turbomachinery Research Consortium (TRC ) at Texas A &M University , College Station , TX , to develop a suite of computer codes to model torsional vibration of large drive trains . The author had the privilege of developing some modules in Visual Basic for Applications (VBA -Excel ) for this suite of torsional vibration analysis codes , now collectively called XLTRC -Torsion . This treatise parleys the theory behind torsional vibration analysis using both the Transfer Matrix approach and the Finite Element approach , and in particular , validates the results generated by XLTRC -Torsion based on those approaches using experimental data available from tests on a 66 ,000 HP Air Compressor .
URI: http : / /hdl .handle .net /1969 .1 /499
Date: 2004-09-30

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Validation of computer-generated results with experimental data obtained for torsional vibration of synchronous motor-driven turbomachinery. Available electronically from http : / /hdl .handle .net /1969 .1 /499 .

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