Welding Robot Lab
ENG3032 · SUSTAINABLE SYSTEMS & INDUSTRY 4.0 — single-joint arm ·
student project
BUILD 8 · centred header
◐ Dark mode
Robot schematic
θ measured from the horizontal
Chart A
Chart B
Parameters
type a value or drag the slider
Robot view
Compare both
Scenario 1
Scenario 2
Time t
0 – 5 s
▶ Play
⟲ Reset t
Mass m
50 – 700 kg
Arm length l
0.5 – 2 m
Damping C
0 – 300 Nm/rad
Bottom charts
Position: X & Y
Trajectory: Y vs X
Angle & Power
Torque & Power
Q = m·l²·θ̈ + C·θ̇ + (m·g·l/2)·cos θ
P = Q·θ̇ · Eₑ = ∫|P| dt (g = 9.81 m/s²)
Inertia m·l²·θ̈
to accelerate the arm
Damping C·θ̇
to overcome friction
Gravity (m·g·l/2)·cosθ
to hold it up
Total torque Q
Power P = Q·θ̇
Robot fleet
1 – 2000 units
900 000 cycles/robot/year · £0.45 and 124 g CO₂ per 3 MJ
Energy / cycle
Annual cost
Annual CO₂