Page 133 - Modern Control Systems
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Section  2.8  Design  Examples                                      107















































                      FIGURE  2.45  (a) This rocket-propelled  sled set a world land speed record for a railed vehicle at
                      6,453 mph (U.S. Air Force photo by 2nd  Lt. Heather Newcomb).  (b) A schematic of an accelerometer
                      mounted on the rocket sled.



                      Since
                                                      cfx
                                                    W 5 -  2  y  =  F(t),
                                                       dt
                      is the engine force, we have
                                              My  + by  + ky  =  -jfF(t),


                      or
                                               ..  ,  b  .  k     HO
                                               V 7  i  V 7  H  V  =  .                  (2.131)
                                                   M     AT       M,
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