Finite Element Modeling
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Rollercoaster Part
This welded part is for an inverting rollercoaster. The modeling
was performed under the aegis of the licensed civil engineer in charge of the project. |
| Grinding Machine Spindle
This grinding machine spindle is from the design shown elsewhere in this
web site. The design was made to determine the stiffness of the spindle and it's
likely motion under several modes of vibration.
The second image shows one of the mode shapes of the spindle. |
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Actuator Band
This actuator band was evaluated for it's dynamic performance. The
dynamic analysis predicted stiffness below 2kips/inch and thus indicated that settling
time would be significant. One simple physical test was enough to confirm this
hypothesis. The design was changed to incorporate a more robust drive at the
expense of increased production cost. Sometimes the dragon wins.
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Compliant Bracket
This bracket secures one end of a gantry powered by magnetically loaded,
linear stepping motors. Should the misalignment between the ways of the gantry be
significant enough to pry the motors and increase the air gap, motor force is greatly
attenuated and the dynamic performance of the package suffers. FEA was used to find
a cross section which was compliant along the axes needed without losing the stiffness
required to isolate motor vibration.
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| Heat Transfer: Computer System
This client was concerned that a PID servo card was going to overheat
the PC used as a controller. This study was reassuring and also shows that the
power supply overshadowed all other heat sources.. |
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While the designs on
this page represent functioning products, several details in each case have been deleted
or altered to protect the client. |
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M4