Computation of the natural vibration frequencies of impellers in gas turbine engines on the basis of the method of dynamic wave stiffnesses and flexibilities

Ermakov, A. I.; Ivanov, V. P.; Frolov, V. A.

doi:10.1007/bf01530101

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“…To date, many works are known in which methods and models for assessing the vibrational state of rotors for the design phase [3][4][5]. The actual task is the development of methods and models for predicting the vibrational state of the turbine rotor, taking into account the influence of geometric parameters and the complexity of the problem and intended for use in technological purposes at the stages of manufacturing and assembling products.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the vibration state of the turbine rotor taking into account the influence of geometric accuracy of parts

2018

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The article describes the method of estimating the state of vibration of the rotor taking into account the geometrical deviations parts. The results obtained theoretical studies of the relationship of vibration characteristics and geometrical deviations of the rotor of low pressure turbine. To conduct research, a parametric rotor model has been created, as well as a finite element model in the ANSYS. To determine the center of mass of a part in the process of balancing, an algorithm developed in the program MATLAB.

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Section: Introductionmentioning

confidence: 99%