Design and parametric simulation of radially oriented electromagnetic actuators
Name
767821526-MIT.pdf
Description
Full printable version
Size
9.66 MB
Format
Adobe PDF
Checksum (MD5)
55fe1a924c4c071dc0416fe414280bf2
Author(s)
Bosworth, William R., Ph. D. Massachusetts Institute of Technology
Advisor(s)
Jeffrey H. Lang and Alexander H. Slocum.
Alternative Title
Design, simulation and experimental validation of an electromagnetic actuation system capable of large radial force pulses
Date Issued
2011
Publisher
Massachusetts Institute of Technology
Abstract
This thesis presents the design and simulation of an electromagnetic actuator system capable of delivering large pulses of radial force onto a cylindrical surface. Due to its robust design, simple control scheme, and large output force capability, the actuator design is developed to be considered for wellbore manipulation and other downhole oil exploration and production activities. The complete simulation - including capacitor bank power supply, solid state switching circuit, transducer, and target formation - is a thirteen value lumped parameter model. The simulation was used heavily in the design and refining of two experimental prototype systems. These prototypes showed excellent model-experiment matching. The experimental prototypes are 2.5" radius, 12" length cylindrical transducers that exert nearly 10 psi onto a simulated rock formation with 2 MN/m radial stiffness, increasing the formation radius 3.5 mm during 5 ms pulse events. It is with this experimentally validated simulation that we project forward a manufacturable system capable of exerting pulses of hundreds of psi in magnitude over durations of 1 - 10 ms onto wellbore sized cylindrical surfaces.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 91-92).
Subjects
Mechanical Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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