docUsing Acoustic Bearing Detector - National Coal Transportation
download 
Report Transcription
Using Acoustic Bearing Detector - National Coal Transportation
Railway Fleet Management: Using Acoustic Bearing Detector (ABD) Data RB Wiley Sr. Principal Investigator, TTCI Association of American Railroads 15 June, 2016 Using Acoustic Bearing Detector Data • • • • • • ABD (acoustic bearing detector) Rule 36.A.4 Acoustic Bearing Detector Defect Two ABD Brands AAR EHMS Alerts Bearing Defect Acoustic Signatures Acoustic Bearing Data Variation ABD • Wayside railcar bearing noise monitoring • Mainline tangent track • Normal speed ranges • Locomotives EHMS Performance Data: ABD N Wayside Detectors 27 (15) 21 (19) (reporting) 1000 0 1000 2000 Miles InteRRIS® Wayside Detector Distribution Detector sites as of: 05/26/2016 Based on USGS DLG; 1:20,000,000 Geographic Projection, DD. 2016 ©, Transportation Technology Center, Inc. •Rule 36.A.4 Acoustic Bearing Detector Defect • Verified vs. Validated • Validated ABD site • 45/50 bearings: Level-1 defects • 5/50 bearings: defects found • Verified detection (by failed hand roll) • WM 96 • Non-Verified (by passing hand roll) or Non-validated (teardown required) • WM 91 Two ABD Brands in North America TADS® • Trackside Acoustic Detection System • http://www.aar.com/pdfs/TADS_OnePager.pdf RailBAM® • Rail Bearing Acoustic Monitor • http://www.trackiq.com.au/railbam.shtml • TTCI (AAR subsidiary) • TrackIQ (Wabtec subsidiary) • AAR research project (SRI) • Vipac reorg’d as TrackIQ originally before acquisition in 2016 • Portable option Two ABD Brands in North America (cont.) TADS® RailBAM® Two ABD Brands in North America (cont.): Defect Classification • • • • • • TADS® Cup Cone Roller Multiple Growler Unknown RailBAM® RS#_p RS#_n RS#_r RS#_m RS#_e [=> ERS] RS# Two ABD Brands in North America (cont.): Defect Severity Rank • Severity • • 1 • 2 • 3 • 4 • 5 TADS® no defect [least severe] [most severe] Severity • 4 • RS# • RS3_? • RS2_? • RS1_? RailBAM® No defect [1-3: unknown] [most severe] AAR EHMS Alerts: Today • Condemnable ABD: • TADS® Growler 5 • RailBAM® ERS1 PAGE 10 Now & almost Now Soon • Condemnable ABD: • Multiple • Roller • Cone • Cup © ASSOCIATION OF AMERICAN RAILROADS Bearing Defect Acoustic Signatures: Normal Realtime 8X Slower Bearing Defect Acoustic Signatures: Cup Characteristics • Frequency isolated to the outer race • Distinct sound: spall, brinell • Not extended surface Cup Signature Bearing Defect Acoustic Signatures: Cone Characteristics Cone Characteristic • Frequency isolated to the inner race • Distinct sound: spall, brinell • Not extended surface Bearing Defect Acoustic Signatures: Roller Characteristics • Frequency isolated to a roller or rollers • Distinct sound: spall, brinell • Not extended surface Roller Signature Bearing Defect Acoustic Signatures: Multiple Characteristics • More than one surface has distinguishable defects • Any combination • Cup\Cone • Cup\Roller • Etc. • Frequencies can be segregated Multiple Signature Bearing Defect Acoustic Signatures: ERS \ Growler • • • • Characteristics Large orange peel Large area spalling Non-distinct frequency Coarse and changing sounds Growler signature Acoustic Bearing Data Variation • Factors Affecting Defect Identification • • • • Speed Load Orientation Chance ….EXIT PRESENTATION MODE… Acoustic Bearing Data Variation (cont.) Acoustic Bearing Data Variation (cont.) Questions? Thank You!, for your time and interest. PAGE 20 © ASSOCIATION OF AMERICAN RAILROADS
multiples)