FEA of Mountain Bike Frame by: Alfred Munoz. Outline Forces from static load (case1) Results...
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Transcript of FEA of Mountain Bike Frame by: Alfred Munoz. Outline Forces from static load (case1) Results...
FEA of Mountain Bike Frameby:
Alfred Munoz
Outline
• Forces from static load (case1)
• Results (disscusion)
Forces from static case 1
Material is CU92 aluminum
Forces from static case 1 Weight Distribution
70 percent 30 percent
Forces from static case 1 (71)X
yX-comp Y-comp
378.5 N 130.34 N
30 percent of 300lb400.35 N
TBTT
TT=117343.2 Nmm(Torque at top)
TB =101717.336Nmm(Torque at bottom)
Forces from static case 1 (72)
x 70 percent 300 lbs(1334.5 N) equals 934.15 N
X-comp=705.01N
Y-comp=612.86 N
D=860
mm
Forces from static case 1
y
x
Y-comp=412.38 N
X-comp=1269.18 N
Force from a 300 lb rider
(1334.5 N)
D=203m
m
Results of FEA
Results of FEA
Areas of concern
Results of FEA
Results of FEALess stress in the middle
Therefore room for optimization of material thickness
Results of FEA
Results of frame
FEA ResultsArea of symetrical stress on the top tube
Future work
• Apply FEA with entire frame
• Run more cases with dynamic loading
• Model tubes of frame with varying cross-section (thinner in darker blue areas)
• Add welding at contacts and add gussets
• Perform corrections to Pro-E model with
the cross-section removed from the places where the tubes intersect
Questions