Abstract

Friction interfaces can be found in almost all engineering systems such as jointed structures in aircraft engines, deployable structures in spacecraft, friction braking systems in automotive and railway industries, and drilling systems in oil and gas industries. The rubbing motion between these loaded contact interfaces generates friction that provide crucial damping for some engineering structure. However, the friction can cause fretting fatigue and wear on the mechanical interface leading to significant energy wastes, surface damage, shorter life cycles and expensive maintenance costs. This talk provides an overview of the historical development of friction dampers for bladed disk systems, emphasizing the interplay between numerical modeling, experimental validation, and real-world applications. Key advancements in contact friction models, reduced-order modelling techniques, and efficient numerical solvers will be discussed, alongside a brief review of state-of-the-art experimental test rigs. The talk will conclude with emerging trends in novel damping concepts, advanced simulation techniques, and next-generation testing technologies shaping the future of friction interface design.