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Keywords: rotor
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Proceedings Papers

Proc. ASME. GT2022, Volume 8B: Structures and Dynamics — Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V08BT25A004, June 13–17, 2022
Paper No: GT2022-82303
... Abstract We present a probabilistic model for quantifying the number of load cycles for nucleation of forging flaws — for a 3.5NiCrMoV high strength low alloy rotor steel — into a crack under gas turbine operating conditions. The model correlates low cycle fatigue data, ultrasonic testing...
Proceedings Papers

Proc. ASME. GT2022, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications, V007T17A024, June 13–17, 2022
Paper No: GT2022-83282
...) that identifies expected results based on manufacturing/microstructure information as well as a second-tier rule incorporating NDE for a more refined HCF Acceptance criteria. additive manufacturing repair rotor airfoil NDE titanium turbine engines Proceedings of ASME Turbo Expo 2022 Turbomachinery...
Proceedings Papers

Proc. ASME. GT2021, Volume 7: Industrial and Cogeneration; Manufacturing Materials and Metallurgy, V007T17A010, June 7–11, 2021
Paper No: GT2021-59480
... for advancing novel repair techniques. additive manufacturing additive repair rotor airfoil titanium turbine engines Proceedings of ASME Turbo Expo 2021 Turbomachinery Technical Conference and Exposition GT2021 June 7-11, 2021, Virtual, Online GT2021-59480 ESTABLISHING AN ACCEPTANCE CRITERIA...
Proceedings Papers

Proc. ASME. GT2020, Volume 2D: Turbomachinery, V02DT36A015, September 21–25, 2020
Paper No: GT2020-15117
...EFFECT OF MATCHING PARAMETERS BETWEEN ROTOR AND DIFFUSER ON THE FLOW LOSS CHARACTERISTIC IN AN AXIAL TURBINE Xing Wang1,2, Yangli Zhu1,2,3, Wen Li1,2,3, Xuehui Zhang 1,2,3*, Haisheng Chen1,2,3 I Institute of Engineering Thermophysics, Chinese Academy of Sciences, 11 Beisihuanxi Rd, Haidian District...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT28A004, September 21–25, 2020
Paper No: GT2020-14606
... from heavy duty steel rotor disks for the energy sector. The large disks, including ultrasonic indications on the millimeter scale, were cut into smaller segments in order to efficiently machine specimens including manufacturing related forging flaws. We conducted cyclic loading experiments...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A006, September 21–25, 2020
Paper No: GT2020-14361
...Abstract Abstract 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: wire fed and blown powder...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A028, September 21–25, 2020
Paper No: GT2020-16260
... of the units limiting the engine life is the compressor rotor. The cyclic life of the rotor depends on many factors: the stress-strain state in critical zones, the life of the material under low-cycle loading, the regime of engine operation, production deviations (within tolerances), etc. In order to verify...
Proceedings Papers

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A029, September 21–25, 2020
Paper No: GT2020-16276
... variation caused by the impact of an aero-engine fan blade is studied. Because the compressor guide vane has a small solidity, the hail may not only hit the vane when striking the blade, but also may hit the first-stage rotor blade. The effects of hail impact on the vanes and rotor blades, especially...
Proceedings Papers

Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 1769-1780, June 6–10, 2011
Paper No: GT2011-46700
... 07 05 2012 An experimental study is carried out in a stationary linear cascade which simulates a turbine rotor to compare the thermal performance of two new axisymmetric endwall contour geometries. Measurements of endwall adiabatic film cooling effectiveness and near-endwall passage...
Proceedings Papers

Proc. ASME. GT2010, Volume 6: Structures and Dynamics, Parts A and B, 473-480, June 14–18, 2010
Paper No: GT2010-23812
... parameters. The crack is identified accurately even in the case of less number of measured vibrations. The method is applied for crack identification in a centrifugal pump rotor using transverse vibrations. The results presented are obtained purely from FEM simulations. Keywords: Model based method, rotor...
Proceedings Papers

Proc. ASME. GT2009, Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors, 523-529, June 8–12, 2009
Paper No: GT2009-59195
..., and the computational time is saved. This method is suitable for on-line monitoring the gradual changes of unbalance on rotating machines; especially those required fixedly operating speeds. fault unbalance monitoring rotor Proceedings of ASME Turbo Expo 2009: Power for Land, Sea and Air GT2009 June 8-12...
Proceedings Papers

Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 281-291, June 9–13, 2008
Paper No: GT2008-50427
... 04 08 2009 The tandem airfoil has potential to do more work as a compressor blade than a single airfoil without incurring higher losses. The goal of this work is to evaluate the fluid mechanics of a tandem rotor in the rear stages of a core compressor. As such, the results...
Proceedings Papers

Proc. ASME. GT2005, Volume 3: Turbo Expo 2005, Parts A and B, 619-627, June 6–9, 2005
Paper No: GT2005-68660
... mainstreams. Although film cooling is very effective, it is well known that film cooling could reduce the engine power rating and introduce losses, mainly due to the direct coolant/mainstream interactions. In this paper, a preliminary study of a new closed-loop rotor cooling technique is reported. Filled...