An investigation of a detection method for a subsurface crack in the outer race of a cylindrical roller bearing

Abstract

An investigAtion of A detection method for A subsurfAce crAck in the outer rAce of A cylindricAl roller beAring bAdAniA metody wykrywAniA pęknięć podpowierzchniowych w zewnętrznej bieżni łożyskA wAlcowego tic emission and vibration methods to detect the propagation initiation and propagation time of rolling contact fatigue cracks. They denoted that the subsurface cracks can be detected by the acoustic emission method. Mano et al. [25] investigated the relationship between the growth of rolling contact fatigue cracks and load distribution on the inner race of a radial rolling bearing using a new acoustic emission source location method. They represented that the fatigue crack at the early stage would occur in a narrow area. Choudhury and Tandon [7] studied changes in the acoustic emission signal for defects with different sizes on the inner race and a roller of a cylindrical roller bearing. They denoted that the ringdown counts of the acoustic emission signal can be used to detect the defect in bearing raceways. Price et al. [27] and Schwach and Guo [31] also used the acoustic emission method to detect a subsurface crack caused by rolling contact fatigue. They also indicated that the acoustic emission method can be used to detect the subsurface crack in the bearing. Elforjani and Mba [12] used a range of time and frequency domain analysis techniques to detect a IntroductionRoller bearings are one of key components in various rotating machines. As one of major failure modes of the roller bearings due to periodic contact forces and external impulse loads, subsurface cracks in the bearings can significantly affect their dynamic performances [18,29], and produce catastrophic failures in these machines. Detecting the subsurface cracks in the races of the bearings at an early stage enables timely maintenance works to extend the lifetime of the machine system. One of current detection methods is vibration-based damage detection based on changes in dynamic characteristics [6,13]. Therefore, it is helpful to investigate the subsurface crack detection method for early failure detection and diagnosis for maintenance purposes.Many crack detection methods for rolling element bearings have been numerically and experimentally studied [21,22,29]. For instance, Yoshioka and Fujiwara [32] and Yoshioka [33] used the acousLiu J, Shi Z, ShAo Y. An investigation of a detection method for a subsurface crack in the outer race of a cylindrical roller bearing. Eksploatacja i Niezawodnosc -Maintenance and Reliability 2017; 19 (2): 211-219, http://dx

Effective image models for inspecting profile flaws of car mirrors with applications

“…Many corner detection methods calculated curvature maximal points using k-cosines as corners [13]. They are applied to damage detection in civil engineering [14,15] and defect detection in manufacturing industry [16]. Shapes of objects are depicted by their schematic curves.…”

An overview of dynamic modeling of rolling-element bearings

“…Correspondingly, 3D FE dynamic models predicted the propagation of crack under a moving compressive load, subsurface strains and stresses in the crack zone, influences of the plastic strain accumulation and subsurface damage on the contact pressure, the refurbishing on the bearing life, and initial internal voids on rolling contact life. 96–108…”

Fatigue life prediction of a radial cylindrical roller bearing subjected to a combined load using FEM

“…This is the reason why FEM models were mostly used with ball bearings [11,22]. In studies on determining load distribution in roller bearings, the authors usually used two-dimensional FEM models [6,16,19,32], and thus were unable to account for the axial force acting on the bearing, or used three-dimensional models [10,17,18], but they did not deal with bearings subjected to complex loading, which greatly simplified the calculation model. In many cases, to simplify the three-dimensional bearing model, rollers or balls were replaced with elements defined by the model creator, so-called super elements.…”