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| 1 | Tribological behaviour diagnostic and fault detection of mechanical seals based on acoustic emission measurements显示文摘Acoustic emission(AE) has been studied for monitoring the condition of mechanical seals by many researchers, however to the best knowledge of the authors, typical fault cases and their effects on tribological behaviour of mechanical seals have not yet been successfully investigated. In this paper, AE signatures from common faults of mechanical seals are studied in association with tribological behaviour of sealing gap to develop more reliable condition monitoring approaches. A purpose-built test rig was employed for recording AE signals from the mechanical seals under healthy and faulty conditions. The collected data was then processed using time domain and frequency domain analysis methods. The study has shown that AE signal parameters: root mean squared(RMS) along with AE spectrum, allows fault conditions including dry running, spring out and defective seal faces to be diagnosed under a wide range of operating conditions. However, when mechanical seals operate around their transition point, conventional signal processing methods may not allow a clear separation of the fault conditions from the healthy baseline. Therefore an auto-regressive(AR) model has been developed on recorded AE signals to classify different fault conditions of mechanical seals and satisfactory results have been perceived. | Hossein TOWSYFYAN Fengshou GU Andrew D BALL Bo LIANG | 2019 | Friction2019，7，6： | 10 |
| 2 | A scientific note on the detection of American strains of acute paralysis virus and Kashmir bee virus in dead bees in one US honey bee (Apis mellifera L) colony 显示文摘 | Hung A C F Ball B Shimanuki H Knox D A | 1996 | Apidologie1996，27，： | 2 |
| 3 | Routing and Scheduling of Vehicles and Crews 显示文摘 | Bodin L D Golden B L Assad A A Ball M O | 1983 | Computers and Operations Research1983，10，2： | 2 |
| 4 | Effects on reproduction performance of administration of GnRH to early postpartum dairy cows显示文摘 | Nash Jr J G Ball L Olson J D | 1980 | J Anim Sci1980，50，： | 2 |
| 5 | Medicine prices, availability, and affordability in 36 developing and middle-income countries: a secondary analysis显示文摘 | A Cameron M Ewen D Ross-Degnan D Ball R Laing | 2009 | 2009 (9659)2009，，9659： | 2 |
| 6 | Conditions for tangent plane continuity over recursively generated B-spline surfaces显示文摘 | Ball A A Story D J T | 1988 | ACM ToG1988，7，2： | 2 |
| 7 | Simulation and fault detection of three-phase induction motors显示文摘 | LIANG B PAYNE B S BALL A D | 2001 | Mathematics and Computers in Simulation2001，61，： | 2 |
| 8 | Knowing Mathematics for Teaching: Who Knows Mathematics Well Enough to Teach Third Grade, and How Can We Decide? 显示文摘 | Ball D L Hill H C Bass H | 2005 | American Educator2005，，3： | 1 |
| 9 | SSIMS,XPS and microstructural studies of ac phosphoric acid anodic films on aluminium 显示文摘 | Treverton J A Ball J Johnson D | 1990 | Surf Interface Anal1990，16，： | 1 |
| 10 | Thyroid careinoma显示文摘 | TUTTLE R M BALL D W BYRD D | 2010 | J Natl Compr Canc Netw2010，8，： | 1 |
| 11 | Biological identifications through DNA barcodes显示文摘 | HEBERT P D CYWINSKA A BALL S L | 2003 | Proceeding of Royal Society of London B2003，270，： | 1 |
| 12 | Wildfire and Charcoal Enhance Nitrification and Ammonium-Oxidizing Bacterial Abundance in Dry Montane Forest Soils显示文摘 | Ball P N MacKenzie M D DeLuca T H Holben W E | 2010 | Journal of Environmental Quality2010，，4： | 1 |
| 13 | Identification of chicken enterovirus-like viruses, duck hepatitis virus (DHV) type 2 and DHV type 3 as astroviruses 显示文摘 | TODD D SMYTH V J BALL N W | 2009 | Avian Pathol2009，38，： | 1 |
| 14 | Radio transmission to and from underground coal mines-theory and measurement 显示文摘 | LARGE B D BALL L | 1973 | IEEE Transactions on Communications1973，21，3： | 1 |
| 15 | Radiation use efficiency and biomass production in soybean at different plant population densities 显示文摘 | Purcell L C Ball R A Reaper J D | 2002 | Crop Science2002，42，： | 1 |
| 16 | Wildfire and Charcoal Enhance Nitrification and Ammonium - oxidizing Bacterial Abundance in Dry Montane Forest Soils显示文摘 | Ball P N Mackenzie M D Deluca T H | 2010 | J Environ Qual2010，39，4： | 1 |
| 17 | Design methods for ground- source heat pumps 显示文摘 | D A Ball R D Fischer D L Hodgett | 1983 | ASHRAE Transactions1983，89，2： | 1 |
| 18 | The Role and Measurement of Attachment in Consumer Behavior 显示文摘 | Ball A D Tasaki L H | 1992 | Journal of Consumer Psychology1992，1，2： | 1 |
| 19 | Rolling textures of a Cu-20% Nb composite显示文摘 | Raabe D Ball J Gottstein G | 1992 | Scr Metall Mater1992，27，： | 1 |
| 20 | Cytotoxic activity of gemtuzumab ozogamicin (Mylotarg) in acute myeloid leukemia correlates with the expression of protein kinase Syk显示文摘 | Balaian L Ball E D | 2006 | Leukemia2006，20，12： | 1 |
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