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RISTopological Optimization of Under-Platform Dampers With Moving Morphable Components and Global Optimization Algorithm for Nonlinear Frequency Response
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To limit the risk of high cycle fatigue, underplatform dampers (UDPs) are traditionally used in aircraft engines to control the level of vibration. Many studies demonstrate the impact of the geometry of the damper on its ...
A Multiscale Approach for Nonlinear Dynamic Response Predictions With Fretting Wear
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accurate prediction of the vibration response of aircraft engine assemblies is of great importance when estimating both the performance and the lifetime of their individual components. In the case of underplatform dampers, ...
On the Efficiency of a Conical Underplatform Damper for Turbines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Underplatform dampers (UPDs) are commonly used in aircraft engines to limit the risk of high-cycle fatigue of turbine blades. The latter is located in a groove between two consecutive blades. The dry friction contact ...