GrabCAD

Flexure Handrail Clamp

Flexure Handrail Clamp

by GrabCAD

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Last crawled date: 2 years ago

Figure 1: Clamp installed with mounting adapter attached and secured.
- Securing mounting adapter creates tension in flexure and increases clamping force.
- Flexure can see 120 lbf of tension due to securing mounting adapter and external loading before start of yield.

Figure 2: Clamp in free state, as printed.
- Z-axis parallel to handrail length direction.
- Flexure curved with parabolic profile in free state.

Figure 3: Clamp installed on handrail.
- Flexure becomes straight when installed on handrail.
- Light clamping force of approximately 1.3 lbf before mounting adapter is attached and secured.

Figure 4: Installation steps.

Figure 5: Cross-sectional view showing internal construction.
- Internal honeycomb construction - lightweight and rigid.
- Chamfers between honeycomb walls and clamp side walls to keep maximum overhang at 45 degrees.

Figure 6: FEA results for maximum flex during installation.
- 2D plane strain nonlinear (large displacement) FEA analysis.
- Flexure sees 95% of yield stress during installation.

Figure 7: FEA results for clamp installed on handrail.
- Flexure sees 48% of yield stress when installed on handrail.
- Flexure can see an additional 120 lbf of tension before yield.

Tags

clamp handrail flexure

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