Impact of rotational speed of composite friction pair on energy accumulation in acoustic emission signal formation

• Main Authors: Sergey Filonenko, Aleksandr Kosmach
• Format: Article
• Language: English
• Published: Vilnius Gediminas Technical University 2013-12-01
• Series: Aviation
• Subjects: acoustic emission; friction; composite material; rotation; signal; energy
• Online Access: http://journals.vgtu.lt/index.php/Aviation/article/view/3550

The paper considers the results of modelling acoustic emission signals that form under variations in the rotational speed of a friction pair made of a composite material. It is found that the energy accumulation in acoustic emission signals that form relative to time takes place in accordance with linear law under normal wear of a friction pair. If the rotational speed of a friction pair increases, the rates of accumulated average energy and accumulated total energy of the acoustic emission signals that form also grow. The resulting acoustic emission signals have both accumulated average energy and accumulated total energy. A comparison of these two types of energy is conducted. It is shown that the application of data averaging reduces the rate of the accumulated energy of the acoustic emission signals that form.