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Nonlinear Modal Analysis of Frictional Ring Damper for Compressor Blisk
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The use of integrally blisk is becoming popular because of the advantages in aerodynamic efficiency and mass reduction. However, in an integrally blisk, the lack of the contact interface leads to a low structural damping ...
Rutting-Resistance Investigation of Alternative Polymerized Asphalt Mixtures
Publisher: American Society of Civil Engineers
Abstract: Polymers have been incorporated into asphalt as a way to mitigate permanent deformation at high performance temperatures for many years. There are several types of polymers used in asphalt binders to improve the rheological ...
Strategic Planning of Urban Network Evacuation with Balanced Signal Control and Crosselimination Strategies
Publisher: American Society of Civil Engineers
Abstract: This paper addresses a critical operational issue of optimally converting some signalized intersections in an evacuation network into crosselimination control points to improve system performance. A mathematical model with ...
Numerical Assessment of Reduced Order Modeling Techniques for Dynamic Analysis of Jointed Structures With Contact Nonlinearities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents an assessment of classical and state of the art reduced order modeling (ROM) techniques to enhance the computational efficiency for dynamic analysis of jointed structures with local contact nonlinearities. ...
Parametric Study and Uncertainty Quantification of the Nonlinear Modal Properties of Frictional Dampers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical methodology is described to study the influence of the contact location and contact condition of friction damper in aircraft engines. A simplified beam model is used to represent the blade for the preliminary ...
The Data-Driven Surrogate Model-Based Dynamic Design of Aeroengine Fan Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: High-cycle fatigue failures of fan blade systems due to vibrational loads are of great concern in the design of aeroengines, where energy dissipation by the relative frictional motion in the dovetail joints provides the ...
Novel Frame Model for Mistuning Analysis of Bladed Disk Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The work investigates the application of a novel frame model to reduce computational cost of the mistuning analysis of bladed disk systems. A full-scale finite element (FE) model of the bladed disk is considered as benchmark. ...