The final design consists of a solenoid
drive system, a non-rechargeable coin battery power supply system and an
oscillation circuit control system. The solenoid drive was purchased from
Bicron and is part number SP1414P. The force curve for this drive is shown below.
The team added a return spring to the basic design of the solenoid to
achieve a return stroke on the drive. Under power, the solenoid plunger pulls
into the body of the solenoid and contracts the spring. During the off
portion of the drive cycle, the plunger is returned to its starting position
by the return spring. Mechanical stops have been employed to ensure the
plunger does not loose contact with the solenoid.
The proteus body design was developed through the use
of CFD analysis. An in-depth discussion of this analysis is contained in the final
report and final presentation available from the files page.