ARC shock absorbers provide linear deceleration and therefore superior to other kinds of daming elements.
It is easy to calculate around 90% of applications knowing only the following 4 parameters:** Mass to be decelerated, Impact Velocity, Propelling Force and Cycles per hour.
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- E1 Kinetic energy per cycle Nm
- E2 Propelling force energy per cycle Nm
- E3 Total energy per cycle (E1 + E2) Nm
- E4 Total energy per hour (E3*c) Nm/hr
- We Effective weight Kg
- W Mass to be decelerated Kg
- n Number of shock absorbers (in parallel)
- ω Angular velocity at impact rad/s
- F Propelling force N
- c Cycles per hour 1/hr
- P Motor power kW
- v Velocity at impact m/s
- vD Impact velocity at shock absorber m/s
- M Propelling torque Nm
- I Moment of Inertia kgm2
- g Acceleration due to gravity = 9.81 m/s2
- h Drop height (excl. shock stroke) m
- s Shock absorber stroke m
- L/R/r Radius m
- Q Reaction force N
- μ Coefficient of friction
- t Deceleration time s
- d Deceleration m/s2
- α Side load angle °deg
- a Angle of incline °deg
- ST Stall torque factor (normally 2.5) 1 to 3