Mon Feb  5 10:09:07 EST 2007
Input file [    rotor.out ]
#----------------------Input---------------------#
OD			7.87		(in)
ID			4.92		(in)
Span			38.2		(in between bearings)
Length			46.64		(total in)
Elastic_Modulus		29000000.	(psi)
Density			.283		(shaft lbm / cu in)
Added_Weight		0.		(lbf, not mass)
BrgSpringRate		5000000.	(lbf / inch)
DampingRatio		.10		(C / Ccrit)
Midunbalance		5.7		(oz-in at midspan)
Yield_Strength		50000.		(psi, yield stress)
Endurance_Limit		35000.		(psi, infinite life alternating stress)
Shear_Modulus		11000000.	(psi)
#----------------------Output--------------------#
#
X-section Area                           30
Mom. of Inertia                         160
Rotor Weight                            391
Total Weight                            391
Rotor Spring Rate                   6374942
Total Spring Rate                   3893108
Bearing 1G Deflection                0.0000
Rotor 1G Deflection                  0.0001
Total 1G Deflection                  0.0001
 
Major Frequencies (Hz): 
Bouncing Freq                         500.3
Pinned-Bending Freq                   399.4
Actual-Bending Freq                   312.1
#
Unbalance Response Plot: 
RPM      Hz       FR       Ampl         UnblFrc 
0.0      0.00     0.00     0.00000      0.00     #
120.0    2.00     0.01     0.00000      0.15     #
240.0    4.00     0.01     0.00000      0.58     #
360.0    6.00     0.02     0.00000      1.31     #
480.0    8.00     0.03     0.00000      2.33     #
600.0    10.00    0.03     0.00000      3.64     #
720.0    12.00    0.04     0.00000      5.25     #
840.0    14.00    0.04     0.00000      7.14     #
960.0    16.00    0.05     0.00000      9.33     #
1080.0   18.00    0.06     0.00000      11.80    ##
1200.0   20.00    0.06     0.00000      14.57    ##
1320.0   22.00    0.07     0.00000      17.63    ##
1440.0   24.00    0.08     0.00001      20.98    ###
1560.0   26.00    0.08     0.00001      24.63    ###
1680.0   28.00    0.09     0.00001      28.56    ####
1800.0   30.00    0.10     0.00001      32.79    ####
1920.0   32.00    0.10     0.00001      37.31    #####
2040.0   34.00    0.11     0.00001      42.12    #####
2160.0   36.00    0.12     0.00001      47.22    ######
2280.0   38.00    0.12     0.00001      52.61    ######
2400.0   40.00    0.13     0.00002      58.29    #######
2520.0   42.00    0.13     0.00002      64.27    #######
2640.0   44.00    0.14     0.00002      70.53    ########
2760.0   46.00    0.15     0.00002      77.09    #########
2880.0   48.00    0.15     0.00002      83.94    ##########
3000.0   50.00    0.16     0.00002      91.08    ##########
3120.0   52.00    0.17     0.00003      98.51    ###########
3240.0   54.00    0.17     0.00003      106.24   ############
3360.0   56.00    0.18     0.00003      114.25   #############
3480.0   58.00    0.19     0.00003      122.56   ##############
3600.0   60.00    0.19     0.00003      131.16   ###############
3720.0   62.00    0.20     0.00004      140.05   ################
3840.0   64.00    0.21     0.00004      149.23   #################
3960.0   66.00    0.21     0.00004      158.70   ##################
4080.0   68.00    0.22     0.00005      168.46   ###################
4200.0   70.00    0.22     0.00005      178.52   #####################
 
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