Cymbal Stand Surface Mount Hinge Light Rail Structure Bracket

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Presentation transcript:

Cymbal Stand Surface Mount Hinge Light Rail Structure Bracket Structure Design Section A Section B 3 2 4 Cymbal Stand Surface Mount Hinge Light Rail Structure Bracket 1 Section C

PARTS LIST Extruded Aluminum 2” Surface Mount Hinge Section A – Bottom View Rounded Head Screw Section A – Side View Cymbal Stand

PARTS LIST 1.5” Extruded Aluminum 2” 2” 4” Section B – Bottom View Counter Sink Screw Section B – Side View

PARTS LIST Extruded Aluminum Rounded Head Screw Section C – Top View Section C – Side View

Worst Case Scenario Calculations Bearing Stress of Bracket Hole Diameter – 0.190” Thickness – 0.160” 𝜎 𝑏 = 𝐹 𝑡𝑑 = 400 psi Shear of Rounded Screw Screw Diameter – 0.190” τ= 𝐹 𝐴 𝑏 = 450 psi Shear of Counter Sink Screw Screw Diameter – 1/4” τ= 𝐹 𝐴 𝑏 = 250 psi Bearing Stress of Light Rail Hole Diameter – 1/4" Thickness – 1/8” 𝜎 𝑏 = 𝐹 𝑡𝑑 = 50 psi 15’ 𝑁𝑜𝑡𝑒: 𝐹=𝜌𝐴𝑔𝐿 = 26.3 lbf Material Properties – Aluminum Bearing Yield Strength 14900 psi Shear Strength 12000 psi Tensile Strength 8000 psi Density 0.0975 lb/in3 Young’s Modulus 10000 ksi

Worst Case Scenario Calculations Deflection of Light Rail at L/2 Base Length – 2” Height Length – 3/4” Overall Length – 15’ or 180” Gravity – 32.2 ft/s/s 𝛿= 5ρ𝐴𝑔 𝐿 4 384𝐸𝐼 = 0.88” Max Stress of Light Rail at L/2 𝜎 𝑚 = 𝑀𝑦 𝐼 = 1300 psi L = 15’ Material Properties – Aluminum Bearing Yield Strength 14900 psi Shear Strength 12000 psi Tensile Strength 8000 psi Density 0.0975 lb/in3 Young’s Modulus 10000 ksi