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Bridge Optimization Project

Designed, optimized, and prototyped a lightweight yet stiff frame for a racing wheelchair, balancing structural integrity with minimal mass under high-load conditions.
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Zeeshan Khan

Project Timeline

Jan 2025 - May-2025

HighlightS

Created a wheelchair frame design that could withstand high load conditions.

SKILLS

SolidWorks
SolidWorks Simulation
FEA Analysis
3D Printing

Design Constraints

  • Support a 1000 N central load with minimal deflection.
  • Withstand a 1000 N off-center load and 100 Nm moment.
  • Reduce mass from a 4000g baseline while increasing stiffness.

Key Engineering Takeaways

  • Simulation vs. Reality: PETG flexibility led to higher displacement than SolidWorks predicted.
  • Design for Manufacturing: Hollow sections required supports; solid design would improve accuracy.
  • Material Selection: PLA offered better precision for small cross-sections than PETG.
  • Trade-off Management: Balanced mass reduction with stiffness through iterative simulation.

3D Printed Prototype that withstood testing conditions

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