1-19 of 19
Keywords: Vibration
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 14: Wind Energy, V014T37A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101689
... Abstract The maintenance of wind turbines is essential to reduce wind energy levelized costs. Earlier detection of potential faults in the rotating subcomponents, such as the drivetrain, helps to plan maintenance actions. Several vibration processing methods, e.g., short-time Fourier analysis...
Proceedings Papers

Proc. ASME. GT2023, Volume 14: Wind Energy, V014T37A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101596
... Abstract Research nowadays takes advantage of the cyclostationary properties in the vibration waveforms of rotating machines for fault detection. For example, cyclic spectral coherence maps (CSCM) break down vibration signals into cyclic and carrier frequencies. However, the large size...
Proceedings Papers

Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT35A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102051
... vibrations. A previously-developed reduced-order model (ROM) leveraging piston theory to compute the stability of general fluid-structural configurations is first presented and summarized. The ROM has been applied to the high-pressure turbine of a dual-stage turbocharger and the results are reviewed...
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, V11BT27A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100959
... Abstract One of the main challenges when designing aero engines is their high sensitivity to vibration, which can lead to a loss of performance, increased maintenance requirements and in the worst case a catastrophic failure of the engine. The Holistic Engine Rotor MEasurement System (HERMES...
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, V11BT27A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101061
... Abstract This work concerns the numerical modeling of geometric nonlinear vibrations of slender structures in rotation using an original reduced order model based on the use of dual modes along with the implicit condensation method. This approach is an improvement of the classical ICE method...
Proceedings Papers

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81111
... Abstract This paper proposes a vibration-based diagnostic methodology for aircraft bearings based on a joint first- and second-order cyclostationary analysis. The idea is to track the first- and second-order content over a predefined operating speed range, instead of ignoring the later...
Proceedings Papers

Proc. ASME. GT2022, Volume 4: Cycle Innovations; Cycle Innovations: Energy Storage, V004T06A016, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81731
..., thus significantly increasing surge onset risk. The activity The main goal is to obtain a suitable quantitative indicator capable to detect in advance surge inception by relying only on vibrational and acoustic system response. Several transient operations starting from a compressor stable condition...
Proceedings Papers

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT27A010, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81696
... Abstract In some circumstances it is impossible to exploit resonance crossings to identify the modal properties of rotor disks. In these cases, the identification process must rely on nonsynchronous vibrations and becomes challenging for two reasons. First, the signals are weak (compared...
Proceedings Papers

Proc. ASME. GT2021, Volume 9B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V09BT28A009, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60301
... operation range, and investigating rotordynamic issues. rotordynamics vibration stability turbine compressor rotor-bearing system Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-60301 EFFECTIVE EVALUATION...
Proceedings Papers

Proc. ASME. GT2021, Volume 6: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels; Microturbines, Turbochargers, and Small Turbomachines, V006T19A002, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58759
... is discussed. aeroelasticity fluid-structure interaction flutter turbocharger turbomachinery vibration Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-58759 REDUCED-ORDER MODELING OF EXTREME SPEED TURBOCHARGERS...
Proceedings Papers

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T05A022, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15641
... of radial vibrations of centrifugal compressors. Experience proves this is one of the most critical data for early fault detection. The goal was to develop a smart modelling based on historical data using essential parameters influencing rotor-dynamics. As a result, a clear correlation was found between...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T18A002, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14122
... Abstract The fatigue life behavior and internal surface conditions of inherently damped Additive Manufactured (AM) specimens subjected to vibration bending are under investigation. This study supports research that demonstrated 95% vibration suppression due to damping capability of AM...
Proceedings Papers

Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A022, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15661
... Abstract To investigate the effect of altitude on vibrations in a turbocharger, an aircraft compression-ignition engine was operated in both a sea level cell and an altitude chamber up to 25,000 ft (7620 m). The turbocharger was instrumented with a nonintrusive stress measurement system...
Proceedings Papers

Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A002, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14109
... of rotor. Once aeroengine starts after a little time of cooling, thermal bow forms more easily, causing excessive vibration. In some cases, the thermal bow can be so severe that the engine will be unable to start. Based on the rotor for one certain type of aeroengine, the paper describes an experiment...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A020, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14942
... Abstract Friction dampers are one of the most common structures used to alleviate excessive vibration amplitudes in turbomachinery applications. There are very well-known types of contact elements exploited efficiently, such as underplatform dampers. However, different design approach...
Proceedings Papers

Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T30A030, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15490
... in real operating conditions, as well as a data matched structural dynamic prediction. NovaLT™ gas turbine combustor annular fuel burner design vibration structural dynamics damping HCF finite element stress strain acceleration STRUCTURAL DYNAMIC DESIGN PROCESS OF NOVALT ANNULAR...
Proceedings Papers

Proc. ASME. GT2004, Volume 6: Turbo Expo 2004, 799-808, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-54322
... using Guyan condensation. The obtained system of matrix equations was converted to a system of first order equations and solved via the Runge-Kutta method. Some results of the numerical testing of the mathematical model developed are provided. vibration active control oil bearing modelling...
Proceedings Papers

Proc. ASME. GT2004, Volume 6: Turbo Expo 2004, 247-256, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53280
... disks. Numerical examples are provided to illustrate these concepts. frequency veering bladed disk vibration forced response Proceedings of ASME Turbo Expo 2004 Power for Land, Sea, and Air ABS A mode the n mode Usin shape force disk. the tr a low respo mode the d can h force provi Keyw...
Topics: Disks
Proceedings Papers

Proc. ASME. GT2005, Volume 5: Turbo Expo 2005, 399-407, June 6–9, 2005
Publisher: American Society of Mechanical Engineers
Paper No: GT2005-68144
... 03 11 2008 The diagnosis of a generator rotor vibration in a 1,000 MW nuclear plant unit is presented. Several vibration excursions were recorded between July and August 2002. The excursions were somewhat repetitive in shape, but erratic and presented a clearly worsening trend, which...