Rotary actuator swing arm: which shock absorber?

Swing arm, J = 10 kg·m², still driven at 50 N·m. Watch the 39-second explainer, check the calculation, then open the same example in ImpactCal and change it to your own machine.

#RotaryActuator#Robotics#ShockAbsorber#MechanicalEngineering#MachineDesign#IndustrialAutomation#EngineeringCalculations#MakeInIndia#ImpactCal#AdoniTech

Inputs (SI units)

Inertia J	10 kg·m²
Speed ω	2 rad/s
Torque M	50 N·m
Torque radius r	0.4 m
Absorber radius R	0.6 m
Cycles C	100 /h

Calculation

Kinetic energyE1 = ½·J·ω² = ½·10·2²	20 J
Impact velocityv = ω·R = 2·0.6	1.2 m/s
Drive energyE2 = (M / r)·s = (50 / 0.4)·0.050	6.25 J
Energy per cycleE3 = E1 + E2	26.3 J
Energy per hourE4 = E3·C = 26.3·100	2 625 J/h
Effective massme = 2·E3 / v²	36.5 kg

s = stroke of the selected model · g = 9.81 m/s²

ImpactCal selection

AC-20-50

Best-centred utilisation

Stroke50 mm

Stopping force656 N

Deceleration18.0 m/s²

Stopping time0.104 s

Open this example in ImpactCalSize my own application