Horizontal Vertical And Axial Vibration. PDF fileThe 2X vibration amplitude component in horizontal direction is 0035716 m/s2 at 007880 offset is 0053245 m/s2 at 013140 offset and is 0069885 m/s2 at 018390 The 2X vibration amplitude component in vertical direction is 0031762.
On rigidly mounted machines amplitudes will typically be highest in the horizontal direction rather than the vertical direction although raised amplitudes can also exist axially on overhung rotors The imbalance amplitude will increase by the square of speed (when the running speed is below the 1 st rotor critical frequency) Typically a 90degree phase difference will.
Imbalance, misalignment, looseness: know the difference
All structures have a resonant frequency If you impact the structure with enough force to make it move it will vibrate briefly at its natural frequency A structure will have a resonant frequency in each of its 3 directional planes (x y and z or as we call them horizontal vertical and axial) Resonance serves to amplify the vibration due to whatever vibration force is present at (or.
Why are readings taken in the horiz, vertical and axial
The piezoelectric accelerometer (Make CTC Model AC1021A) having (sensitivity = 100 mV/g) is used to collect the vibration signals in horizontal (H) vertical (V) and axial (A) direction at bearinghousing (Fig 2) The four channel FFT analyzer (Make Adash VA4Pro) is used to collect vibration signals and carry out analysis.
Vibration Diagnostic Guide EDGE
For example at a specific bearing the horizontal vibration may be 60 mils whereas its vertical vibration may be almost zero All vibration data in the diagrams are at the frequency of 1 x rpm Looking at Fig 2 the vertical amplitudes of 71 at the left and 22 at the right end may have originated from unbalance.
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PDF fileflexible in the horizontal plane excessive horizontal vibration is a good indicator of imbalance • Vertical measurements typically show less vibration than horizontal because of stiffness due to mounting and gravity • Under ideal conditions axial measurements should show very little vibration as most forces are generated perpendicular to the shaft However misalignment.