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Keywords: mistuning
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Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2024, 146(3): 031018.
Paper No: GTP-23-1421
Published Online: November 28, 2023
... for efficient calculations of the sensitivity of the transient vibration response for a mistuned-bladed disk under varying rotation speeds. The sensitivities are calculated concerning two major factors: (i) the blade mistuning and (ii) the rotor acceleration/deceleration rates. The method uses the large-scale...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2023, 145(12): 121012.
Paper No: GTP-23-1342
Published Online: October 17, 2023
... properties, a full cyclic symmetric reduced-order model is computed. In this work, this methodology is extended to account for random mistuning. Such a strategy allows to perform, for instance, fast parametric studies. This paper studies the sensitivity of the random mistuning on a nonlinear open rotor...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2023, 145(2): 021004.
Paper No: GTP-22-1142
Published Online: November 28, 2022
...Anthony Tacher; Fabrice Thouverez; Jason Armand Intentional frequency mistuning referred to as detuning is known to be an effective mean to prevent aeroelastic flutter in gas turbines. The Coriolis effect, which is usually discarded, can reduce the mistuning effects and therefore compromise...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2021, 143(12): 121023.
Paper No: GTP-21-1277
Published Online: October 13, 2021
... a robust methodology to account for the additional effect of mistuning remains a big challenge in the community. In this paper, the structure is mistuned through the friction coefficient of the dampers and not by altering its geometry, as is usually done in the literature. First, assuming a cyclic...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2021, 143(2): 021012.
Paper No: GTP-20-1612
Published Online: January 18, 2021
...Samuel Quaegebeur; Benjamin Chouvion; Fabrice Thouverez; Loic Berthe Cyclic structures such as turbomachinery present material and geometrical variations between sectors. These discrepancies are called mistuning and break the cyclic symmetry of the structure. Computing the forced response...
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2014, 136(6): 062505.
Paper No: GTP-13-1395
Published Online: February 11, 2014
...Yun Han; Raghavendra Murthy; Marc P. Mignolet; Jeff Lentz The optimization of A/B intentional mistuning patterns was addressed next, and the specificities of this optimization problem were discussed in the details. Given the large number of local minima and the high cost of a function evaluation...