Crack detection and vibration characteristics of cracked shafts

Analysis of Adaptive Fuzzy Technique for Multiple Crack Diagnosis of Faulty Beam Using Vibration Signatures

“…Through the equilibrium conditions, the stiffness matrix of a cracked beam element can be obtained as follows [13]:…”

“…Tada et al [12] have provided the basis for computation of compliance matrix for damage detection following fracture mechanics theory. Sekhar and Prabhu [13] have derived a method for crack detection in a cracked shaft using finite element analysis using correct expression for strain energy release rate function. Hossain et al [14] have presented an investigation for comparative performance of intelligent system-like genetic algorithms (GAs) and adaptive neurofuzzy inference system (ANFIS) algorithms for identification of fault in an active vibration control (AVC) system.…”

Vibration Characteristics of a Cracked Rotor With Two Open Cracks

“…Thē exibility matrix of a cracked section as given in Papadopoulos and Dimarogonas [12] and utilized in the FEM analysis of Sekhar and Prabhu [22] has been used for the crack modelling and the details are presented here.…”

Review of Recent Advances in the Application of the Wavelet Transform to Diagnose Cracked Rotors

“…Vibration methods are based on detecting variations in the response, which are then assigned to a crack. Signals analyzed via vibration methods can come from real systems or models, as in the cases of [7,8], respectively. Models are mainly based on the crack breathing mechanism; further detail regarding this can be found in [9], and new breathing functions were proposed…”