Creo Mechanism Day 2: MDX Capstone & MDO

Creo MDX/MDO Gear Box

Gearbox

  • Open & Interrogate model (fastway_gearbox.zip)
  • Convert Assembly Constraints
  • Create & Manage Sub Assemblies
  • Create Gear Connections
  • Add Motor, Analyze, & Animate
Creo MDX/MDO Gear Box with Rack and Pinion

Gearbox Design Challenge #1:

  • Add a rack & pinion on the side of the gearbox
Creo MDX/MDO Gear Box with Belt

Gearbox Design Challenge #2:

  • Add the gearbox top, with a belt/pulley connection, & model the belt.
Creo MDO 4-bar Link Spring

4-Bar Linkage: Dynamics

  • Verify Mass Properties!
  • Snapshot = Link1 Vertical
  • Add a spring to the center of the model
    • K = 1 lbf/in
    • Equilibrium = 6”
    • Icon diam. = 1/2”
  • Add Force Motor - Ramp, A = 0 in-lbf, B = 100 in-lbf
  • Force Analysis #1
    • Duration = 6, set the I.C. to the link1 Vert snapshot
    • Next, set Duration = 7. What's different?
  • Force Analysis #2
    • Add Damper (C = 2 lbf-sec/in) & Rerun with Duration = 15
  • Use measures to plot Y-Value of Datum Pt. for each Analysis
Creo MDX/MDO Simulate FEA

4-Bar Linkage: Continued

  • Export to FEA & Discuss
  • Execute a Static Structural Analysis on the Link
  • More info HERE
PTC Creo MDO Measures

Measures available in PTC Creo MDX/MDO

PTC Creo MDX/MDO Miata Oil Pump

Oil Pump

  • Assemble this Positive Displacement Pump (oil_pump.zip)
  • Design proper tooth clearance (.005”)
  • Measure Diameter
  • Create Gear Pair
  • Add Motor, Analyze & Animate
  • Add Spring & Speed-Dependent Force

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