Symbol

Description

Values

c

Boom length

1.79 m

θ_A

maximum boom angle

34˚

V

Length of hydraulic cylinder 2 at instroke

0.67 m

Z

Total inclination height

0.81 m

J

Outstroke length of hydraulic cylinder 2

0.14 m

θ_B

Hydraulic cylinder 2 top minimum inclination angle

19˚

θv

Hydraulic cylinder 2 bottom minimum inclination angle

37˚

F_C2

Force of hydraulic cylinder 2(≈ Fmax)

603N

F_C1

Force of hydraulic cylinder 1

71N

F_C3

Force of hydraulic cylinder 3

303N

P

Hydraulic pump pressure

1.9 bar

V_T

Oil tank capacity

4.7 × 10⁻³ m³

H_T

Oil Tank height

0.31 m

W_RPO

Sumation of weights W_C3,W_P,W_O

128.9N

X₁, X₃, X₄, X₅

Resolved horizontal distances of W_B1, W_C1, W_B2, W_B3,

0.36, 0.72, 0.86, 1.21

X₆, X₇, X₈

W_EM, W_CA, W_C2 successively from the mast.

1.45, 0.099, 0.287 m

W_BA

Base weight of machine

168.6N

I

Area moment of Inertia of the boom

2.085 × 10⁻⁷ m⁴

P_S

Permissible weight of the electric cutting system

114N

P_WR

Power required

138w