Page 54 - Singiresu S. Rao-Mechanical Vibrations in SI Units, Global Edition-Pearson (2017)

1.6 Vibration analysis proCedure 51

Rider

Strut
Strut
Tire
Wheel

(a)

m m r
v
m eq
k s c s c s k s

c eq m w m w
k eq
k t k t

(b) (c)

Subscripts
m r t : tire v : vehicle
w : wheel r : rider
s : strut eq : equivalent
k r c r

m v m m r
v
k s c s c s k s 2k s 2c s

m w m w 2m w

k t k t 2k t

(d) (e)
FiGure 1.17 Motorcycle with a rider—a physical system and
mathematical model.