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Amplitude and frequency control of a vibratory pile driver

By Chris Bingham, D A Stone, N Schofield, D Howe and D Peel


Abstract—This paper describes the digital control of a vibratory pile driver in which the vibration is generated via two tandem pairs of electrically driven, geared, contra-rotating eccentrics. Experimental results are included to show the controller-induced system dynamics for a variety of load condtions, and to highlight the fact that, if the relative phase of the eccentric pairs is not controlled, the\ud natural tendency at high excitation frequency is for the pile driver to operate with a low vibration amplitude. An analytical technique for identifying the system parameters is presented, and analytical performance predictions are compared with experimental results. Analysis of the power flow in the system shows that, although significant\ud power transfer occurs between the two electrical drives,\ud the net power dissipation during pile driving is relatively low

Topics: H600 Electronic and Electrical Engineering
Publisher: Institution of Electronic and Electrical Engineers
Year: 2000
OAI identifier:

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  1. (1996). [2] Site Guide to Foundation Construction (Handbook for Young Professionals),
  2. (1989). Bingham (M’00) received the B.Eng. degree in electronic systems and control engineering from Sheffield City Polytechnic, Sheffield, U.K., the M.Sc.(Eng.) degree in control systems engineering from the
  3. (1966). degrees from the University of
  4. (1998). He was a Post-Doctoral Researcher until subsequently taking up a research position at the University of Sheffield. Since
  5. he was a Senior Experimental Officer in the Department of Electronic and Electrical Engineering, University of Sheffield, before taking up the post of Design Engineer in industry.
  6. (1990). received the B.Eng. degree in electrical power engineering and the Ph.D. degree from the University of Sheffield,
  7. (1978). Robust feedforward control of IM with torque feedforward control,” doi
  8. (1984). Stone (M’90) received the B.Eng. degree in electronic engineering from the University of Sheffield, Sheffield, U.K., and the Ph.D. degree from
  9. (1994). Tandem rolling rotor actuation systems,”

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