Mon Feb 5 10:08:47 EST 2007 Input file [ 1DOFvibes.out ] #----------------------Input---------------------# Weight 100 (lbf, not mass) Spring Rate 1000 (lbf / inch) Damping Ratio .10 (C / Ccrit) F0 100.0 (amplitude (lbf) of applied cyclic force) alpha 8. (freq (cps, Hz) of applied cyclic force) #---------------------------------Output--------------------------------------# Undamped natural frequency = 9.89 Hz Damped natural frequency = 9.84 Hz Applied frequency ratio= 0.809 Amplitude at specified frequency = 0.2621 inches Applied F0 / k = 0.1000 inches Response Plot: FR Hz Ampl 0.00 0.00 0.1000 ##### 0.10 0.99 0.1010 ##### 0.20 1.98 0.1041 ##### 0.30 2.97 0.1097 ##### 0.40 3.96 0.1185 ##### 0.50 4.94 0.1322 ###### 0.60 5.93 0.1536 ####### 0.70 6.92 0.1891 ######## 0.80 7.91 0.2538 ########### 0.90 8.90 0.3821 ################ 0.95 9.39 0.4683 ################### 1.00 9.89 0.5000 ##################### 1.05 10.38 0.4279 ################## 1.10 10.88 0.3288 ############## 1.20 11.87 0.1995 ######## 1.30 12.86 0.1356 ###### 1.40 13.84 0.1000 #### 1.50 14.83 0.0778 #### 1.60 15.82 0.0628 ### 1.70 16.81 0.0521 ### 1.80 17.80 0.0441 ## 1.90 18.79 0.0379 ## 2.00 19.78 0.0330 ## #-----------------------------End of File---------------------------------------#