ANALYSIS OF THE WORST MISTUNING PATTERNS IN BLADED DISC ASSEMBLIES
, 2020 In the paper, the problem of determining of the worst mistuning patterns is formulated and solved as an optimization problem. Maximum resonant amplitudes searched across the many nodes of a large-scale finite element model of a mistuned bladed disc and ...
Expo, Asme Proceedings Of, Turbo
core
Modelling and analysis of a high-speed turbine impeller concerning mistuning
MATEC Web of Conferences, 2018 As-manufactured impellers behave significantly different from nominal impellers. There are no identical blades due to geometric and material deviations.
Weber Robby +2 more
doaj +1 more source
Robustness Analysis of Intentional Mistuning Patterns in Randomly Mistuned Bladed Disk Assemblies
, 2010 It is known that bladed disks, which are usually designed as cyclically symmetric structures, undergo considerable amount of forced response amplitude magnification due to the phenomenon called mistuning.
Yumer, M. E. +2 more
core +1 more source
Application of model updating techniques to turbomachinery rotor components
Advances in Mechanical Engineering, 2019 Model updating techniques are commonly used to improve simulation accuracy. Experimental data of component testing under laboratory conditions are normally used to improve analytical predictions of that component under operational conditions.
Roberto Alonso +2 more
doaj +1 more source
Analysis of the effect of mistuning on turbomachinery aeroelasticity
, 2001 . This paper looks at the eect of alternate and random mis-tuning on utter and forced response in turbomachinery. Two levels of asymptotic analysis are used, and their accuracy is assessed by comparison with the exact solution obtained by direct ...
Giles, M.B. +3 more
core
Quantitative Validation of the Asymptotic Mistuning Model Using a High Fidelity Bladed Disk Model
, 2010 The Asymptotic Mistuning Model (AMM) is a recently introduced simplified method for the analysis of mistuning effects in the vibration characteristics of bladed disks.
Roque Corral +2 more
core +1 more source
Music & Science, 2018 Listeners regularly judge the accuracy of musical performances. However, as is true for several types of judgments (e.g., beauty or obscenity), estimating the correctness of melodies is not based on a precise definition of the object/performance but ...
Pauline Larrouy-Maestri
doaj +1 more source
Model Development and Statistical Investigation of Turbine Blade Mistuning
, 1984 This paper discusses the development of an efficient algorithm which calculates the individual blade response of a bladed turbine disk, the subsequent statistical investigation to establish mistuning dependencies, and procedures which reduce the increase
J. H. Griffin, T. M. Hoosac
core +1 more source
Improving Aeroelastic Stability of Bladed Disks with Topologically Optimized Piezoelectric Materials and Intentionally Mistuned Shunt Capacitance. [PDF]
Materials (Basel), 2022 Liu X, Fan Y, Li L, Yu X.
europepmc +1 more source
Multistage Blisk Large Mistuning Modeling Using Fourier Constraint Modes and Pristine Rogue Interface Modal Expansion [PDF]
, 2018 In the turbomachinery field, a great deal of research has focused on understanding the effects of mistuning on the dynamics of each stage. Mistuning in bladed disks is due to the blade to blade differences that typically occur due to manufacturing ...
Stahl, Spencer
core +1 more source