... optimization search for mistuning patterns providing the minimum and maximum fatigue damage accumulation during rotor acceleration is performed. transient oscillations high cycle fatigue sensitivity mistuning bladed disk Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference...

... Abstract The centrifugal compressor blade will be excited by unsteady flow and mechanical vibration such as distorted flow, turbulence and rotor vibration, etc. Coupled vibration of the blade will occur with several high-order modes, which may lead to complex high cycle fatigue failure...

... Abstract High cycle fatigue (HCF) is the most common form of blade failure in nozzleless radial turbines. Current studies related to blade vibration alleviation focus on redesign of blade and volute geometries. These methods have the drawbacks of long period, performance sacrifice and poor...

... Abstract High cycle fatigue (HCF) of laminated composite fan blade (LCFB) caused by vibration is important content within airworthiness certification. This paper proposed a method suitable for LCFB to evaluate its HCF failure location under complex excitations. First, a high-fidelity finite...

..., modulus of elasticity, and elongation to failure — based on 108 samples, as functions of temperature and sample print orientation; 3) Creep rupture data including the Larson-Miller parameter, based on 21 samples; and 4) High cycle fatigue data based on 21 samples as a function of temperature. Results...

..., and also stages 17 to 19. The damage consisted of airfoil fracture in stationary vanes and moving blades, FOD, moving blade tip rubbing, and bending of stationary vanes, moving blades and diaphragm shrouds. A laboratory evaluation of stationary vane tenon fracture indicated a high cycle fatigue (HCF...

... by use of the Palmgren- Miner analysis. Example cases of significant failure analyses for an axial flow gas turbine compressor and a driven industrial compressor are used to illustrate how the method is used. Keywords: Blade Vibration, Failure Analysis, High Cycle Fatigue, Compressor Surge ,1752'8&7,21...

.... turbines compressors wave reflections non-synchronous blade vibrations forced blade vibrations turbo-machinery noise high cycle fatigue R E O E le With the introduction of jet engines to aircraft and Proceedings of ASME Turbo Expo 2009: Power for Land, Sea and Air GT2009 reported...

... at different zones of the blades depending on the case, and were localized at the blades cover segments, blade root and blade airfoil close to the platform. Laboratory evaluation of the blades fracture surface indicates the failure mechanism to be high cycle fatigue (HCF). Failure analysis High cycle...

... in subsequent durability tests in order to reduce the necessary amount of testing resources. KEYWORDS turbocharger, high cycle fatigue, modal analysis, radial turbine, VTG, CFD, FEA AN ANALYTICAL APPROACH TO SUPP FOR TURBOCHARG Tom Heuer, Marc BorgWarner Turbo Sys Marnheim 67292 Kirchheimb Pau BorgWarner 1849...

... 23 09 2008 Diagnosing the root cause of compressor blade failures by high cycle fatigue (HCF) is elusive for gas turbines with a long history of successful operation; long operating times preclude design, fabrication, and material defect issues that are usually associated with short...