Final Design
CAD Model of the Final Design:
Final Overall Version of the Gyroscope with annotation:
The Rotation Frame:
The rotation frame represents the actual boomerang that simulates the rotation of the boomerang in flight. The inner part of the rotation frame is a 16in bicycle wheel and the
outer fame is built by 80-20s. A D-12mm shaft is pressed fit through the wheel then is
attached to the outer frame via low friction open ball bearings with shaft collars to hold
the position. Then a string is attached near the center of the shaft; by pulling it, the inner
bicycle wheel can be driven.
The Nutation and Precession Frame:Both nutation and precession frame are built by 80-20s.The nutation frame is attached
on the precession frame via low friction open bearing along with shaft collars to hold the
position. In this way, the shafts
are fixed on the precession frame but the nutation frame
can freely nutates around the shafts. Similarly, the precession frame is attached to the
support frame also via a shaft. But, for the precession frame, instead of mounting the shafts
or ball bearings directly into the 80-20s, there are two bearing blocks to hold the positions
of the shafts, which effectively reduce the frictions.
The Support Frame:
In stead of using a single rode to hole the gyroscope, we choose tripod additionally holdingthe rode to eliminate wobbling. Then the tripod is attached on a wooden base that supported
by 4 wheels. Additionally, 2 of 4 wheels can be fixed at certain angles so that the gyroscope
can simulate more complex situation of boomerang flights.
Ancillary Design:
Wheels with angular block: wheels can be locked at certain angle to presents complex dynamic of boomerangs flight path
Ball bearing blocks: using bearings to decrease the friction and using blocks to hold the bearings/shaft at right position
Final Performance of Results:
Capability of gyro to rotate freely on three axes to represent the precession and nutation of the boomerang dynamics
Have wheels on the base that are able to be fixed at certain angle t represent the circular and linear motion of boomerang flights.
The gyroscope is easily assemble and disassemble by sponsor himself and can fit in the suitcase brought to international flights.
Ability to apply measurable torque to the spinning wheel so that actual precession and nutation in measurement can be compared with theory
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