the spectrum of motor show high amplitude
the spectrum of motor show high amplitude
(OP)
e.motor 1465 rpm drive by t-belt overhung axial variable fan 291 rpm with 6 blades in the motor inboard and out board spectrum i see 0.2x and it is harmonic which reach 16 mm/sec rms (0.2*1465)=293 the high reading was at m1h.m1v.m2h.m2v.m2a i confused in the reason of this high vibration is the belt is the reason or eccentric pulley or the balde mechanism ? plz help





RE: the spectrum of motor show high amplitude
Walt
RE: the spectrum of motor show high amplitude
Could you post a picture of the installation? I am wondering if this is an axial fan mounted in a round duct with the motor bolted to a two dimensional motor mount that in turn is just barely stuck to the duct, like this -
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How high is the 293 cpm vibration on the fan bearings?
And, on the duct, if it is a duct mounted blower as shown above.
RE: the spectrum of motor show high amplitude
and thanks storng.
dear Tmoose i say that i see 0.2x and it is harmonic which reach 16 mm/sec rms (i mean that one of 0.2x harmonic reach 16mm/sec in the spectrum of the motor not the 1x of the motor )
and this is a graph of the installation
RE: the spectrum of motor show high amplitude