1-20 of 27
Keywords: forced response
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101253
... Technology Centre, Imperial College London, London, UK ABSTRACT The next generation of aero engines feature a more compact design with a shorter distance between the fan rotor and bypass outlet guide vane (OGV) assembly. As such, potential forced response due to rotor-stator interactions has become a more...
Topics: Guide vanes
Proceedings Papers

Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT21A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100678
... Abstract One of the grand challenges in turbomachinery forced response is accurately predicting individual blade responses in a system. This paper helps address these challenges and describes an improved FMM model for computing the mistuned forced response of an embedded compressor rotor...
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, V11BT23A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101168
... to prevent failure in future tests. The results confirm the existence of weak regions even with stiffer components, and the impossibility of operating the facility at high Reynolds number with the current design. Keywords: Turboprop engine, Structural validation, Fluid Structure Interaction, Forced Response...
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, V11BT27A025, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104069
... conditions. The expressions for the sensitivities are derived analytically which provides high accuracy and speed of the calculations. The method has been implemented in a computer code and thoroughly verified using a set of test cases. The studies of transient forced response sensitivity have been...
Proceedings Papers

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A016, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82208
... Abstract Intentional mistuning is employed for a last stage turbine wheel featuring 51 blades to alleviate both the flutter susceptibility and maximum forced response. Primarily, operations at nominal speed under part-load conditions may cause unfavorable flow conditions facilitating flow...
Proceedings Papers

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A009, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82149
... is taken into account. ground vortex unsteady distortion numerical forced response Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82149 INVESTIGATIONS OF THE UNSTEADY AERODYNAMIC CHARACTERISTICS...
Proceedings Papers

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78101
... Abstract This paper continues previous research by the current authors in a series of papers describing the impact of multi-row interaction on the forced response behavior of embedded compressor rotors. Specifically, this work dives into an aspect of the embedded rotor forcing that has been...
Proceedings Papers

Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A002, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78033
... case with the downstream rotor in the computational model yielded the most accurate prediction of the blade response supporting earlier conclusions by the same authors that a downstream row was essential to predict the forcing function accurately. compressor forced response multi-row mistuning...
Proceedings Papers

Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT21A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79761
... Abstract This paper is a continuation of previous papers by the authors that focuses on predicting the mistuned embedded rotor blade forced response. The compressor under consideration is a part of a 3.5stage rig located at Purdue University. Previously, the current authors have discussed...
Proceedings Papers

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T41A001, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60864
... and grand challenges are also given. aero-engine instability damping forced response system identification Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60864 INSTABILITIES EVERYWHERE! HARD PROBLEMS IN AERO...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A002, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58779
... order modes. compressor forced response multi-row mistuning stator hub cavities CFD Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58779 INFLUENCE OF STATOR HUB CAVITIES ON THE FORCED RESPONSE BEHAVIOUR...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A003, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58780
... Abstract This paper focusses on predicting the mistuned forced response behavior of an embedded compressor rotor blade row in a 3.5 stage axial compressor. The authors in previous papers studied the multi-row influence on the forcing function for multiple operating conditions...
Proceedings Papers

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT23A008, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59040
... a parametric method for annular combustor staging patterns profile generation intended for use for forced response predictions from a limited number of combustor CFD calculations while keeping the key phenomenological features. Two cases with burner staging turbine inlet temperature distributions...
Proceedings Papers

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A013, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15123
... pressure turbines inlet distortion aeroelasticity unsteady aerodynamics forced response rotor vibrations strain gauges EXPERIMENTAL STUDY ON THE EFFECT OF CLOCKING ON THE PROPAGATION OF INFLOW PRESSURE DISTORTIONS IN A LOW PRESSURE TURBINE STAGE Simonassi L., Zenz M., Bruckner P., Pramstrahler S...
Proceedings Papers

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT24A007, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14750
... blisks are common in engine designs. So, fan blades are prone to serious vibrations such as flutter and forced response, which may lead to high-cycle fatigue, and further cause structural failure. The aeromechanical characteristics of a transonic fan (NASA rotor67) in presence of a s-shaped intake...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14468
... Abstract The last stage bladed disk of a steam turbine is analyzed with respect to both flutter susceptibility and limitation of forced response. Due to the lack of variable stator vanes unfavorable flow conditions may occur which can lead to flow separation in some circumstances. Consequently...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A032, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15508
... Abstract This paper presents experimental and numerical investigation of mistuned forced responses of an integrally bladed disk with full set of underplatform dampers (UPDs). This research aims at providing: 1. An experimental benchmark for nonlinear dynamics of a mistuned bladed disks...
Proceedings Papers

Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A012, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14482
... Abstract This paper focuses on the impact of multi-row interaction on the forced response behavior of an embedded compressor rotor at higher order modes. The authors in previous papers have discussed about the multi-row influence at the torsional mode resonant crossing and this paper extends...
Proceedings Papers

Proc. ASME. GT2011, Volume 6: Structures and Dynamics, Parts A and B, 1127-1135, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46435
... measured by the strain gauges and blade tip tangential displacement obtained through tip-timing measurements is performed by using realistic finite element models of the blisk. Key words: tip-timing method, travelling wave, mode identification, Coriolis effect, bladed disk, forced response 1. INTRODUCTION...
Proceedings Papers

Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 1103-1116, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-23610
... a simplified finite elements model taking into account Coriolis effect. The paper focuses on the influence of the latter which is most of the time neglected and its implication on the forced response levels is studied into two situations without or with mistuning. bladed disk forced response Coriolis...