Title: FEA of Mountain Bike Frame by: Alfred Munoz
1FEA of Mountain Bike FramebyAlfred Munoz
2Outline
- Forces from static load (case1)
- Results (disscusion)
3Forces from static case 1
Material is CU92 aluminum
4Forces from static case 1 Weight Distribution
70 percent
30 percent
5Forces from static case 1 (71)
X-comp
Y-comp
TT117343.2 Nmm (Torque at top) TB 101717.336Nm
m
(Torque at bottom)
378.5 N
130.34 N
TB
TT
y
30 percent of 300lb 400.35 N
X
6Forces from static case 1 (72)
D860mm
y
x
70 percent 300 lbs(1334.5 N) equals 934.15 N
X-comp705.01N Y-comp612.86 N
7Forces from static case 1
X-comp1269.18 N
Y-comp412.38 N
D203mm
Force from a 300 lb rider (1334.5 N)
y
x
8Results of FEA
9Results of FEA
Areas of concern
10Results of FEA
11Results of FEA
Less stress in the middle Therefore room for opti
mization of material thickness
12Results of FEA
Results of frame
13FEA Results
Area of symetrical stress on the top tube
14Future 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
15Questions