Normenclature

Description

Values

Units

$M_c$

Mass of carbody

38,000

Kg

$M_b$

Mass of Bogie

2500

Kg

$C_s$

Damping constants of secondary damper

30,000

Ns/m

$C_p$

Damping constants of primary damper

17,900

Ns/m

$K_s$

Spring constants of secondary spring

508,000

N/m

$K_p$

Spring constants of primary spring

2,500,000

N/m

$J_{\varphi }$

Carbody pitch inertia

2,310,000

Kgm²

$J_{\theta }$

Carbody roll inertia

14,400

Kgm²

$J_{b\varphi }$

Bogie pitch inertia

2000

Kgm²

$J_{b\theta }$

Bogie roll inertia

720

Kgm²

l

Half of the carbody length

9.5

m

$l_1$

Half of the distance between two wheelsets in a bogie

1.25

m

b

Half of the distance between secondary spring

0.75

m

$b_1$

Half of the distance between primary spring

0.75

m

$K_{\theta }$

Spring constants of the anti-roll spring

1

N/m