Mechanical Crank ToyErkan Olcay

16 December 2010

Design GoalsMany parts (40) including mechanical parts

such as gears and cranksMany moving parts (about 30)Moving parts are visibleDifferent types of mechanisms for motionUse inventor for FEA and Motion simulations

Existing Products

(a) Butterfly collector[1] (c) Two cylinder perch[2] (d) Flights of fancy[3]

Initial Design Ideas

3D Renderings

Rear wheelMain frame

Right wing

Chair assemblyGear mechanism

3D Renderings – Final Design

Simulation

FEA - FRAMEFigure Time [s] Element size Mesh Size Von Misses Stress [psi]

26 19 0.075 26573 355.327 20 0.05 28384 312.228 27 0.025 29481 310.229 29 0.01 52311 307.6

Original Design

Modified Design 1

Modified Design 2

FEA - Crank

Original Design

Modified Design

Website

https://sites.google.com/site/erkanolcaycadapplications/project-6

References[1] http://keithnewsteadautomata.com/forsale/butterfly-collector[2] Two cylinder perch.

http://www.youtube.com/watch?v=ltqIQ77_7hM[3] http://keithnewsteadautomata.com/forsale/flights-fancy