A re-design based on a fast prototype dynamic response analysis
for point of sale consumer station was completed. The benefits of fast prototyping
is to validate many aspects of a new design, but the dynamic and structural
response of the fast prototype does not indicate that of the final production
version of the design. This project involved dynamic measurements of the
fast prototype design and correlation to an analytical model of a spring
loaded door opening. The dynamic response of the final production
version, with changes, was predicted and a custom coil spring design/specification
was completed to provide a desirable dynamic response. Additional analysis
support was completed with a nonlinear finite element analysis for the snap
together design. The calculation determine the peak force expecienced
for product drop test where the peak force had to cause disassembly
without breaking.