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RISAdaptive Microslip Projection for Reduction of Frictional and Contact Nonlinearities in Shrouded Blisks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Reduced order models (ROMs) of turbine bladed disks (blisks) are essential to quickly yet accurately characterize vibration characteristics and effectively design for high cycle fatigue. Modeling blisks with contacting ...
Nonlinear Vibration Analysis of Turbine Bladed Disks With Midspan Dampers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Friction dampers are one of the most common secondary structures utilized to alleviate excessive vibration amplitudes in turbomachinery applications. In this paper, the dynamic behavior of the turbine bladed disks coupled ...
An Experimental Investigation on the Dynamic Response Variability of a Turbine Blade With Midspan Dampers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper addresses two main subjects. First, a novel test setup is described to experimentally study the nonlinear dynamic behavior of a turbine blade coupled with two midspan dampers (MSDs). To this end, a representative ...
The Impact of Different Equilibrium Hypotheses on the Nonlinear Response of Bladed Disks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Underplatform dampers (UPDs) are widely used in bladed disks to mitigate blades' vibration amplitude. Such devices introduce localized nonlinearities, whose modeling requires nonlinear solution techniques. When the harmonic ...
Experimental and Numerical Assessment of Mistuning Effects on Vibratory Response of a Bladed Disk With Underplatform Dampers
Publisher: The American Society of Mechanical Engineers (ASME)
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 ...