Results 21 to 30 of about 73,894 (273)
Applied Sciences, 2022 Based on the computation and analysis of three-dimensional unsteady flow induced by rotor/stator interactions, the characteristics of flow excitation towards bladed disks were studied, including frequency components and circumferential wave components ...
Haoran Ma, Zhou Zhou, Lin Li
doaj +1 more source
Analysis of the Mode Shapes of Kaplan Runners
Applied Sciences, 2022 To prevent lifetime shortening and premature failure in turbine runners, it is of paramount importance to analyse and understand its dynamic response and determine the factors that affect it.
Greco Moraga +4 more
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2022 The vibration characteristics of a bladed disk with the continuous ring type structure have been studied extensively, and the vibration response analyses considering the friction damping between adjacent shrouds have been performed in the recent blade ...
Yasutomo KANEKO +3 more
doaj +1 more source
Blade Manufacturing Tolerances Definition for a Mistuned Industrial Bladed Disk [PDF]
Journal of Engineering for Gas Turbines and Power, 2004 This paper deals with the characterization of the blade manufacturing geometric tolerances in order to get a given level of amplification in the forced response of a mistuned bladed-disk. The theory is based on the use of a nonparametric probabilistic model of blade random uncertainties. The dispersion parameters controlling the nonparametric model are
Capiez-Lernout, Evangéline +4 more
openaire +2 more sources
Nihon Kikai Gakkai ronbunshu, 2022 The vibration characteristics of a bladed disk with the continuous ring type structure have been studied extensively, and the vibration response analyses considering the friction damping between adjacent shrouds have been performed in the blade design ...
Yasutomo KANEKO +2 more
doaj +1 more source
Modelling friction contacts in structural dynamics and its application to turbine bladed disks [PDF]
, 2011 Non
ZUCCA, Stefano +6 more
core +1 more source
Validation of a Modal Work Approach for Forced Response Analysis of Bladed Disks
Applied Sciences, 2021 The paper describes a numerical method based on a modal work approach to evaluate the forced response of bladed disks and its validation against numerical results obtained by a commercial FEM code.
Lorenzo Pinelli +4 more
doaj +1 more source
Dynamic Analysis of a Bladed Disk With Friction and Fretting-Wear in Blade Attachments [PDF]
Volume 6: Structures and Dynamics, Parts A and B, 2009 Assembled bladed disks have many contact interfaces (blade-disk joint, blade shrouds, friction dampers...). Because of relative displacements at these interfaces, fretting-wear occurs, which affects negatively the lifetime of the structure. Methods exist to predict fretting-wear in quasi-static analysis.
Salles, Loïc +4 more
openaire +1 more source
Shock and Vibration, 2019 Bladed disks of engine rotors usually operate at harsh conditions of high rotating speeds, which may lead to nonnegligible rotordynamic effects, including Coriolis force, spin softening, and stress stiffening effects.
Shuai Wang +3 more
doaj +1 more source
A Modal Interpretation for Aeroelastic Stability Enhancement of Mistuned Bladed Disks
Aerospace, 2022 Understanding the mechanism of the aeroelastic stability improvement induced by mistuning is essential for the design of bladed disks in aero-engines. In this paper, a quantitative interpretation is given. It starts by projecting the mistuned aeroelastic
Xin Liu, Yu Fan, Lin Li, Xiaoping Yu
doaj +1 more source