The mechanisms and applications of friction energy dissipation

Abstract About 30% of the world’s primary energy consumption is in friction. The economic losses caused by friction dissipation and wear account for about 2%–7% its gross domestic product (GDP) different countries every year. key to reducing control way process. However, due many various factors affecting lack efficient detection methods, mechanism still a challenging problem. Here, we firstly introduce classical microscopic dissipation, including phonon electron non-contact dissipation. Then, attempt summarize ultrafast high-resolution system, since origin essentially related dynamics excited electrons phonons. Finally, application representative high-end equipment discussed, potential saving predicted.