King Fahd University of Petroleum

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King Fahd University of Petroleum Minerals
Mechanical Engineering Dynamics ME 201 BY Dr.
Meyassar N. Al-Haddad Lecture 32
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General Application of the Equations of Motion
Summation of moment in FBD summation of the
kinetic moment in K.D
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Rectilinear Translation
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Curvilinear Translation
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slipping Vs. Tipping
If x gt 1.5 ft tipping
If x lt 1.5 ft slipping
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Slipping Vs. Freely rotating
mg
FAmsNA
NA
NB
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Wheely Vs. Non-Wheely
Wheely lift the front wheel off the ground
NB0
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Example
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Example
mk0.2 a ? Flip Or Tipp?
If x gt 0.5 m tipping will take place
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Example
mm125 kg mR 75 kg a ? NB? FB? ms? Minimum
to Lift front wheel
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Example
mBD100kg mABmCD Neglect q 30o w 6
rad/s TA ? TD ? aG?
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Problem
m 80 kg mB0.8 NA? NB? When rear wheel locks
for break a ? Deceleration
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Problem
m 80 kg mB ? NA? NB? a ? When traveling at
constant velocity and no break was applied
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Problem
m 80 kg NA? NB? a ? mk? minimum When rider
applies the front break and back wheel start to
lift off the ground
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Thank You