TIME-DEPENDENT ANALYSES OF WEAR IN OSCILLATING BEARING APPLICATIONS

摘要

Oscillating bearings can be found in several industrial applications. The minute motion is intentional in some applications like blade bearings for wind turbines [1]. Other bearings in technical systems are unintentionally affected by vibrations due to operation or shipping. The dominating and therefore most focused upon damage modes in oscillating bearings are false brinelling and fretting corrosion [2]. False brinelling was first mentioned by ALMEN in 1937 [3]. Figure 1 shows a false brinelling damage and the typically occurring areas due to slip. False brinelling can be found in lubricated bearings operating under small pivoting angles. The greyish color occurs due to the formation of magnetite, i.e. Fe_3O_4..