Multiparticle Impact Damping (MPID) Design Methodology for Extreme Environments

摘要: Abstract : Vibration mitigation is often required in aerospace structures, including engine subsystems. Yet, established damping methods are not effective high-temperature environments. Multiple particle impact (MPID) a promising technology that can be over wide temperature range. Energy dissipated as particles within system one another and the walls of their enclosure. The actual design this type complex, research focused on development methodology. Analytical modeling capability central to Details several approaches therefore described. Beginning with single designs, were developed for describing effects variation key parameters, size fill factor. Structures from simple cantilevered beams built-up structures used test analysis predictions. effectiveness was demonstrated at elevated temperatures. Particle guidelines successfully employed an application.