Flexible Self Locking Pin-less Joint
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Transcript of Flexible Self Locking Pin-less Joint
Flexible Self Locking Pin-less Joint
Lance Woolley
Ben Henrie
Compliant Chair
Complex Geometry
Original Design Modified Design
Required Information
• Required Information• Compressive stress
upper compliant member
• Tensile stress
lower compliant member
• Required Modeling• Mesh size
• 0.15 – 0.3 cm
• Mesh technique• Mapped
• Free
• Target surface
Simplified Model
• Plane of Symmetry
• 2-D Plane
• Constraints• Horizontal Pin-Slider• Vertical Rollers
• Loads• Fx = 723 N
• Fy = -123 N
Free Mesh for Original Design
Free Mesh at 0.20 Free Mesh at 0.15
Deformed Shape for Original Design
Stress with 0.20 Mesh for Original Design
Stress with 0.15 Mesh for Original Design
Free Mesh for Modified Design
Mesh at 0.15 Mesh at 0.30
Deformed Shape for Modified Design
Stress for Modified Design
Conclusion
• FEA showed were the stresses would be present
• Model was simplified by a factor of eight
• Mesh size plays an important roll in an accurate models
• Both designs need to be modeled non-linearly