2019-06-01
Accordingtotheprocessofgeneratingunbalance,itcanbedividedintoinitialunbalance,gradualunbalanceandsuddenunbalance.Initialunbalanceiscausedbymanufacturingdeviation,assemblydeviationandunevenmaterialofro
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Mechanism of rotor unbalance fault
2019-06-01
SupposethemassoftherotorisM,theeccentricmassisM,andtheeccentricdistanceise.Iftheverticaldistancefromthecenterofmassoftherotortotheconnectingcenterlineofthetwobearingsisnotzero,thedeflectionisa,asshown
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Characteristics of rotor unbalance fault
2019-06-01
Inpracticalengineering,therotor'sresponsetothebalancedmassvariesnotonlyinthexandydirections,butalsointhephasedifferenceof90°duetothedifferentstiffnessoftheshaftineachdirection,especiallythedifferentbe
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Examples of rotor imbalance fault diagnosis
2019-06-03
Example1:thesteamturbineofalargecentrifugalcompressorsetstartedupwithstrongvibrationaftertherotorwasreplaced.Theradialamplitudeofthebearingsatbothendsofthecompressorreachesthealarmvalue,andthemachinec
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Dynamic balance in the assembly of fan impeller
2019-06-03
Wetheoreticallydiscussedtheimpellerdynamicbalancestate,isinthemanufacturingofimpellermaterial(materialisuniform,continuous,tohomogeneitywhichdonotcontainimpurities),process(stamping,spraying,riveting,
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