semi elliptic leaf spring calculations 1
DESCRIPTION
springTRANSCRIPT
SEMI ELLIPTIC LEAF SPRING CALCULATIONS
GROSS VEHICLE WEIGHT
LOAD (P) =1490 kgf
LENGTH (L) =1480mm
NO.OF.LEAVES (n) =6
WIDTH OF LEAF (b) =60mm
THICKNESS OF LEAF (t) =12.33mm
YOUNGS MODULUS (E) = 2.1×105
BENDING STRESS (Ϭb) 6PL
BENDING STRESS (Ϭb) = ---------
nbt²
6×1490×1480
Ϭb= ———————
6×60× (12.33)²
Ϭb=2417.5 N/cm²
DEFLECTION (Y)
Y= 6PL³/Enbt³
6×1490×14803
Y = ———————————
2.1×105×6×60× (12.33)3
Y = 204.50 mm
CURB VEHICLE WEIGHT
LOAD (P) =612 kgf
LENGTH (L) =1480mm
NO.OF.LEAVES (n) =6
WIDTH OF LEAF (b) =60mm
THICKNESS OF LEAF (t) =12.33mm
YOUNGS MODULUS (E) = 2.1×105
BENDING STRESS (Ϭb)
6PL
BENDING STRESS (Ϭb) = ---------
nbt²
6×612×1480
Ϭb= ———————
6×60× (12.33)²
Ϭb= 992.96 N/cm²
DEFLECTION (Y)
Y= 6PL³/Enbt³
6×612×14803
Y = ———————————
2.1×105×6×60× (12.33)3
Y = 83.99 mm