Prospects for chaos control of machine tool chatter

Prognostic Analysis of the Tactical Quiet Generator

“…ORNL has demonstrated the prognostic technology for both biomedical [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] and machine applications [15][16][17][18][19][20][21][22][23][24][25][26] . Specific machine demonstrations to date include both accelerated failure tests and seeded faults in motors and motor-driven components:…”

Epilepsy Forewarning Using A Hand-Held Device

“…The NERI project results are thoroughly documented in various technical reports and conference papers [26][27][28][29][30][31][32][33][34][35] . The ORNL technology detects and predicts a rich variety of equipment faults (e.g., drill-bit wear, tool chatter, bellows coupling failure, imbalance, misalignment, offset, cut rotor bars, turn-to-turn short) in motors and motor-driven components (e.g., pump, bearing, gearbox, cracked blade, structural failure) via analysis of process-indicative, time-serial data (motor current, voltage, power, acceleration, torque, stress and strain) [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38] . Success for this large array of diverse processes gives confidence that the paradigm may work for any nonlinear system.…”