Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Daniel L. Gillaugh"'
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 144
A machine learning (ML) approach is developed to predict the effect of blend repairs on airfoil frequency, modal assurance criterion (MAC), and modal displacement vectors. The method is demonstrated on a transonic research rig compressor rotor airfoi
Autor:
Daniel L. Gillaugh, Alexander A. Kaszynksi, Trevor C. Tomlin, Jeffrey M. Brown, Joseph A. Beck, Emily B. Carper
Publikováno v:
Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration.
Non-intrusive stress measurement systems (NSMS) are commonly used during rig and engine tests to ensure safe operation of the test asset. Blade tip timing (BTT) is one form of NSMS that estimates operational stresses of a bladed rotor using time-of-a
Publikováno v:
Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration.
The safety of a fielded Integrally Bladed Rotor (IBR) is often assessed through vibration testing. Responses due to various types of excitation are measured and processed and can be inputs to follow-on analyses, such as mistuning identification. One
Publikováno v:
Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration.
This work develops a new process to efficiently predict the effect of as-manufactured geometry variations on airfoil modal response. A gradient enhanced kriging approach is formulated that uses two sets of results at the training model sites in order
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 144
Conventional airfoil blend repair limits are established using nominal, design intent geometry. This convention does not explicitly consider the inherent blade-to-blade structural response variation associated with geometric manufacturing deviations.
Integrally Bladed Rotor Mistuning Identification and Model Updating Using Geometric Mistuning Models
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 143
Nonuniform manufacturing variations and uneven usage wear and damage, referred to as mistuning, can drastically alter the dynamic response of integrally blade rotors (IBRs). Optical scanners, combined with finite element model (FEM) mesh metamorphosi
Autor:
Bryan Langley, Manigandan Kannan, Daniel L. Gillaugh, Tommy George, Dino Celli, Casey Holycross, Andrew L. Gyekenyesi, Sulochana Shrestha, Onome Scott-Emuakpor, Luke Sheridan, Brian Runyon, Andrew Goldin
Considerable steps to assess the structural capability of laser directed energy deposition (DED) aim to determine the viability of repair processes for integrally bladed rotors (IBRs). Two laser DED processes are under investigation in this study: wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::629eccb91a3ee53d69db132a3d968221
https://doi.org/10.1115/1.0002681v
https://doi.org/10.1115/1.0002681v
Publikováno v:
Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration.
Geometric mistuning models formulated from a component mode synthesis methods often require the calculation of component modes, particularly constraint and fixed interface normal modes, during substructuring. For Integrally Bladed Rotors, these calcu
Autor:
Jeffrey M. Brown, Joseph A. Beck, Timothy J. Janczewski, Daniel L. Gillaugh, Alex A. Kaszynski, Chase Nessler
Publikováno v:
Journal of Engineering for Gas Turbines and Power.
The dynamic response of turbine engine components varies widely due to manufacturing deviations in the blades known as mistuning. This dynamic variation is investigated using a single stage compressor experimentally using both blade tip timing (BTT)
Publikováno v:
Journal of Propulsion and Power. 34:1401-1408
Safe engine operation is ensured by setting safety limits on rotor airfoil-mounted strain gauges that monitor the dynamic response of the component. Traditionally, strain gauge limits are generated...