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Keywords: harmonic balance method
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Proceedings Papers
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122018
... made in MSC Nastran for solving nonlinear windmilling problems and improve its robustness. The enhancements added to the software has made it possible to solve large scale production problems which was not feasible earlier. windmilling rotordynamics harmonic balance method continuation...
Proceedings Papers
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124453
... nonlinearities cyclic symmetry harmonic balance method shrouded blade Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-124453 ON A NEW CYCLIC SYMMETRY FORMULATION ACCOUNTING FOR BOUNDARIES UNDERGOING NONLINEAR...
Proceedings Papers
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A006, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122765
... to promote the reproducibility of the results. The blade is subjected to an harmonic forcing so as to initiate rubbing interactions. Contact is modeled in the frequency domain by the dynamic Lagrangian frequency-time harmonic balance method (DLFT-HBM) that accounts for vibro-impact as well as dry friction...
Proceedings Papers
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125447
... Abstract A harmonic balance method for under-constrained dry friction systems containing rigid body modes (HBM-RBM) is proposed. This method aims to overcome the encountered obstacle when applying the harmonic balance method to turbine blades damped by underplatform dampers. The inspiration...
Proceedings Papers
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A009, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125492
... Abstract The elastic support with adjustable dry friction damper has prospects for vibration reduction of aero-engine rotors under variable working conditions. In this work, we propose a harmonic balance method for predicting the unbalanced response of the elastic supported rotor damped...
Proceedings Papers
Rizwan Ahmed, Erhan Ferhatoglu, Lakshminarayana Reddy Tamatam, Christian Maria Firrone, Stefano Zucca
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT27A031, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128700
... and the shroud contact forces, the test rig is modeled in a commercial finite element software, and the system matrices are extracted in a reduced order form. The Harmonic Balance Method is applied in a nonlinear solver developed dedicatedly with the implementation of a 3D contact model. The comparison...
Proceedings Papers
Proc. ASME. GT2024, Volume 12C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V12CT32A026, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125758
... is the turbulent flow in a three-dimensional transonic compressor stage. harmonic balance method implicit method von Neumann analysis numerical stability Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-125758...
Topics:
Numerical stability
Proceedings Papers
Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT27A019, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103048
... Abstract Building on the regularized-Lanczos harmonic balance method, a previously developed frequency method, this paper presents a numerical bifurcation tracking strategy dedicated to high-dimensional nonlinear mechanical systems. In order to demonstrate its applicability to industrial...
Proceedings Papers
Proc. ASME. GT2023, Volume 11B: Structures and Dynamics — Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V11BT27A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101267
... with the harmonic balance method (DLFT-HBM) is used to predict the blade’s dynamics response as well as to compute the autonomous nonlinear normal modes. The open industrial fan blade NASA rotor 67 is employed in order to avoid confidentiality issues and to promote the reproducibility of the presented results...
Proceedings Papers
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A048, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-84388
... numerical methods. multi-stage turbomachinery unsteady flow blade row interaction mixing-plane method harmonic balance method space-time gradient method Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands...
Proceedings Papers
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79918
.... A procedure is implemented to handle the interpenetration generated by the pre-torsion of the blades, which is the key part of the static loading of the structure. In order to solve this non-linear dynamic problem in the frequency domain, based on the static loading results, the Harmonic Balance Method (HBM...
Proceedings Papers
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A009, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81694
... Abstract The study presented in this paper focuses on the analysis of rubbing interactions — including unilateral contact and dry friction — between a rotating fan blade and a rigid casing by frequency domain methods. Two previously published Harmonic Balance Method-based methodologies...
Proceedings Papers
Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A018, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82322
... to efficiently assess the stability of computed solutions are also detailed in order to provide a comprehensive view of the challenges inherent to such numerical developments. harmonic balance method blade-tip/casing contacts rotor/stator interaction Floquet theory Hill’s method stability analysis...
Proceedings Papers
Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT29A020, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59298
... Abstract In this study, a frequency-domain approach based on the harmonic balance method coupled to a predictor-corrector continuation algorithm is implemented for the qualitative analysis of blade-tip/casing contacts in aircraft engines. Unilateral contact and dry friction are taken...
Proceedings Papers
Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A001, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58766
... stage turbine blade harmonic balance method Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58766 NUMERICAL INVESTIGATION ON THE INFLUENCE OF TIP SHROUD DESIGN CHARACTERISTICS ON THE AERODYNAMIC DAMPING OF A LAST...
Proceedings Papers
Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT29A005, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14415
... synthesis (CMS) is used to reduce the system’s degrees of freedom (DOFs). Then, in the process of solving the equations by harmonic balance method (HBM) and Newton-Raphson method, an original method for fast calculating tangent stiffness matrix is proposed. Finally, the effects of the crack depth...
Proceedings Papers
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A019, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14941
... harmonic balance method ON A NEW NONLINEAR REDUCED-ORDER MODEL FOR CAPTURING INTERNAL RESONANCES IN INTENTIONALLY MISTUNED CYCLIC STRUCTURES Samuel Quaegebeur(a,b Benjamin Chouvion(a), Fabrice Thouverez(a), Loïc Berthe(b) (a) Ecole Centrale de Lyon, LTDS UMR 5513 69130 Ecully France (b) Safran...
Proceedings Papers
Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A022, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15959
... working ranges of the harmonic balance method, which has been widely used for the aeromechanical analysis of turbomachines, are also presented in this work. This paper will bridge a key gap in the knowledge of aeroelasticity modelling and analysis of modern LPTs. low-pressure turbines computational...
Proceedings Papers
Proc. ASME. GT2009, Volume 6: Structures and Dynamics, Parts A and B, 353-362, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59598
... in the disk, a reduction procedure was implemented to simulate full bladed disk. It is proposed to use crack location as an interface between two substructures for subsequent fixed-interface method application. Harmonic balance method was applied to take into account crack nonlinear behavior under...