A thin disk is supported on spring mounted bearings as shown. Running at 600 rpm ccw, the original disk indicates a max...
A thin disk is supported on spring mounted bearings as shown. Running at 600 rpm ccw, the original disk indicates a maximum amplitude of 2.8 mm at 45° cw from a reference mark on the disk. Next a trial weight of 2.0 oz is added at the rim in a position 91.5° cw from the reference mark and run at the same speed. A new unbalance is 6 mm at 80° cw from the reference mark. a) Determine the maximum force due to only the trial weight of 2.0 oz b) Draw the vector diagram representing all the unbalances Ref Ref. mark Vib. pickup 91.5° 45° 42 28 35°
A thin disk is supported on spring mounted bearings as shown. Running at 600 rpm ccw, the original disk indicates a maximum amplitude of 2.8 mm at 45° cw from a reference mark on the disk. Next a trial weight of 2.0 oz is added at the rim in a position 91.5° cw from the reference mark and run at the same speed. A new unbalance is 6 mm at 80° cw from the reference mark. a) Determine the maximum force due to only the trial weight of 2.0 oz b) Draw the vector diagram representing all the unbalances Ref Ref. mark Vib. pickup 91.5° 45° 42 28 35°