Publicado

2020-07-01

Structural component fatigue analysis of a hydrogenerator rotor

Análisis de fatiga de los componentes estructurales del rotor de un hidrogenerador

DOI:

https://doi.org/10.15446/dyna.v87n214.84678

Palabras clave:

damage, fatigue life, hydrogenerator, multiaxial stress, stress measurement (en)
daño, esfuerzo multiaxial, hidro-generador, mediciones de esfuerzos, vida a fatiga (es)

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Autores/as

This paper presents a fatigue life calculation for the pole, the rotor rim, and the rotor spoke of a 100 MW hydro-generator. Mechanical and electrical parameters during unit start, with the hydro-generator working at several power levels, and during a load rejection from 100 MW were measured. The measured loads together with centrifugal force, gravity, and magnetic pulling force were included in finite element models to quantify stresses. Also, stresses produced during over-speed, phase-to-ground failure, and phase-to-phase failure were evaluated. A stress history for each element was obtained by fitting the calculated stresses, with the power generation history collected hourly during one year of operation of the machine. Fatigue life calculation was performed by using the stress history along with the Wang-Brown multiaxial fatigue model.

Este artículo presenta un cálculo de vida a fatiga para el polo, la corona y la maza rotorica de un hidro-generador de 100 MW. Se midieron parámetros mecánicos y eléctricos durante el arranque, con la máquina trabajando a varios niveles de potencia y durante un rechazo de carga desde 100 MW. Las cargas medidas, junto con la fuerza centrífuga, la gravedad y la tracción magnética fueron incluidas en modelos de elementos finitos para cuantificar esfuerzos. También se evaluaron los esfuerzos producidos durante: embalado, falla fase a tierra y falla entre fases. Se obtuvo una historia de esfuerzos acoplando los esfuerzos calculados, con la historia de generación de potencia recolectada cada hora durante un año de operación de la máquina. Se realizaron cálculos de vida a fatiga utilizando la historia de esfuerzos junto con el modelo de fatiga multiaxial de Wang-Brown.

Se encontró que las tres piezas evaluadas están trabajando bajo el régimen de vida infinita.

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Cómo citar

IEEE

[1]
G. F. Casanova Garcia, A. F. Cardona Gutierrez, y C. A. Mantilla Viveros, «Structural component fatigue analysis of a hydrogenerator rotor», DYNA, vol. 87, n.º 214, pp. 155–164, jul. 2020.

ACM

[1]
Casanova Garcia, G.F., Cardona Gutierrez, A.F. y Mantilla Viveros, C.A. 2020. Structural component fatigue analysis of a hydrogenerator rotor. DYNA. 87, 214 (jul. 2020), 155–164. DOI:https://doi.org/10.15446/dyna.v87n214.84678.

ACS

(1)
Casanova Garcia, G. F.; Cardona Gutierrez, A. F.; Mantilla Viveros, C. A. Structural component fatigue analysis of a hydrogenerator rotor. DYNA 2020, 87, 155-164.

APA

Casanova Garcia, G. F., Cardona Gutierrez, A. F. & Mantilla Viveros, C. A. (2020). Structural component fatigue analysis of a hydrogenerator rotor. DYNA, 87(214), 155–164. https://doi.org/10.15446/dyna.v87n214.84678

ABNT

CASANOVA GARCIA, G. F.; CARDONA GUTIERREZ, A. F.; MANTILLA VIVEROS, C. A. Structural component fatigue analysis of a hydrogenerator rotor. DYNA, [S. l.], v. 87, n. 214, p. 155–164, 2020. DOI: 10.15446/dyna.v87n214.84678. Disponível em: https://revistas.unal.edu.co/index.php/dyna/article/view/84678. Acesso em: 22 mar. 2026.

Chicago

Casanova Garcia, Gonzalo Fernando, Andres Felipe Cardona Gutierrez, y Carlos Alberto Mantilla Viveros. 2020. «Structural component fatigue analysis of a hydrogenerator rotor». DYNA 87 (214):155-64. https://doi.org/10.15446/dyna.v87n214.84678.

Harvard

Casanova Garcia, G. F., Cardona Gutierrez, A. F. y Mantilla Viveros, C. A. (2020) «Structural component fatigue analysis of a hydrogenerator rotor», DYNA, 87(214), pp. 155–164. doi: 10.15446/dyna.v87n214.84678.

MLA

Casanova Garcia, G. F., A. F. Cardona Gutierrez, y C. A. Mantilla Viveros. «Structural component fatigue analysis of a hydrogenerator rotor». DYNA, vol. 87, n.º 214, julio de 2020, pp. 155-64, doi:10.15446/dyna.v87n214.84678.

Turabian

Casanova Garcia, Gonzalo Fernando, Andres Felipe Cardona Gutierrez, y Carlos Alberto Mantilla Viveros. «Structural component fatigue analysis of a hydrogenerator rotor». DYNA 87, no. 214 (julio 1, 2020): 155–164. Accedido marzo 22, 2026. https://revistas.unal.edu.co/index.php/dyna/article/view/84678.

Vancouver

1.
Casanova Garcia GF, Cardona Gutierrez AF, Mantilla Viveros CA. Structural component fatigue analysis of a hydrogenerator rotor. DYNA [Internet]. 1 de julio de 2020 [citado 22 de marzo de 2026];87(214):155-64. Disponible en: https://revistas.unal.edu.co/index.php/dyna/article/view/84678

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CrossRef Cited-by

CrossRef citations1

1. Carlos Mantilla-Viveros, Rubén Aponte, Fernando Casanova-Garcia. (2025). Fatigue Analysis of the Head Cover of a 100-MW Hydroelectric Power Plant. Journal of Failure Analysis and Prevention, 25(4), p.1850. https://doi.org/10.1007/s11668-025-02217-4.

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