In order to investigate the response characteristics of gas turbines under impact loads, an equivalent finite element model of the gas turbine was established in Abaqus, with a focus on refining the mesh of the support legs and key connection parts. The impact loads were converted into positive and negative combined triangular wave inputs according to the BV043/85 standard. Subsequently, calculate the impact response of the structure and extract the acceleration time history data of the bottom, middle, and top of the support legs. Finally, the HHT method improved by CEEMDAN was used to analyze the acceleration signal and obtain the distribution pattern of the impact response in the support legs. The results indicate that the impact stress gradually attenuates during the structural transmission process and mainly concentrates at the structural connections and the edges of the support legs; On a rigid installation foundation, the acceleration response exhibits significant high-frequency components, and as energy is transferred within the structure, the proportion of high-frequency component energy gradually decreases; There are spatial differences in the acceleration energy distribution of different legs, and the proportion of high-frequency components in the rear leg is generally higher than that in the front leg.

Pengwei Lv, Fulin Yu. Analysis of Impact Response Characteristics of Typical Gas Turbine Components. Academic Journal of Engineering and Technology Science (2025), Vol. 8, Issue 5: 93-100. https://doi.org/10.25236/AJETS.2025.080513.

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