Download - Air-Oil Systems, Inc.

W = Moving Weight (lbs)
V = Impact Velocity (ft/sec)
Fp = Known Propelling Force (lbs)
M = Total Distance Moved by Weight (inches)
D = Distance Moved by Weight to Shock (inches)
A = Angle of Inclined Plane (°)
Wcw = Counter Weight (lbs)
C = Cycles per Hour (/hour)
s = Stroke Length of Shock Absorber (inches)
F = Propelling Force at Shock Absorber (lbs)
V1 Weight, Vertical Free Fall Examples: Elevator Emergency Stops, Flying Shears, Test Equipment
FORMULA
D = (M) - (s)
V = √(5.4)•(D)•SIN(A)
F = (W)•SIN(A)
E1 = (0.186)•(W)•(V2 )
E2 = (F)•(s)
E3 = E + E 1 2
E4 = (E )•(C) 3
We = E / [(0.186)•(V 3 2 )]
EXAMPLE
W = 200 lbs
M = 18 inches
C = 60/hour
s = 3 inches
D = (18) - (3) = 15 inches
V = √(5.4)•(15) = 9 ft/sec
F = 200 = 200 lbs
E 1 = (0.186)•(200)•(9 2 ) = 3,013.2 in lbs
E 2 = (200)•(3) = 600 in lbs
E 3 = 3,613.2 = 3,613.2 in lbs
E 4 = (3,013.2)•(60) = 216,792 in lbs/h
We = 3,013.2 / [(0.186)•(9 2 )] = 239.8 lbs
V1 - Select from Model Rating Chart: MA 4575
V2 Weight Sliding Down Incline Inclined Non-Powered Conveyor, Package Chute, Parts Transfer Ramp
D = (M) - (s)
V = √(5.4)•(D)•SIN(A)
F = (W)•SIN(A)
E1 = (0.186)•(W)•(V2 )
E2 = (F)•(s)
E3 = E + E 1 2
E4 = (E )•(C) 3
We = E / [(0.186)•(V 3 2 D = (15) - (2) = 13 inches
V = √(5.4)•(13)•SIN (30) = 5.9 ft/sec
F = 500 = 500 lbs
E1 = (0.186)•(1,000)•(5.9
)]
2 ) = 6,474.7 in lbs
E2 = (500)•(2) = 1,000 in lbs
E3 = 6,474.7 + 1,000 = 7,474.7 in lbs
E4 = (7,474.7)•(190) = 1,420,193 in lbs/h
We = 7,474.7 / [(0.186)•(5.92 W = 1,000 lbs
M = 15 inches
A = 30°
C = 190/hour
s = 2 inches
)] = 1,154.5 lbs
V2 - Select from Model Rating Chart: MCA 6450-1 or -2
V3 Down Incline with Propelling Force Inclined Conveyor Belt, High Speed Safety Doors
F = (W)•SIN(A)+(Fp)
E1 = (0.186)•(W)•(V2 )
E2 = (F)•(s)
E3 = E + E 1 2
E4 = (E )•(C) 3
We = E / [(0.186)•(V 3 2 )]
W = 100 lbs
V = 2 ft/sec
Fp = 50 lbs
A = 15°
C = 30/hour
s = 0.5 inches
F = (100)•SIN(15)+(50) = 75.9 lbs
E1 = (0.186)•(100)•(22 ) = 74.4 lbs
E2 = (75.9)•(0.5) = 38 in lbs
E3 = 74.4 + 38 = 112.4 in lbs
E4 = (112.4)•(30) = 3,370.5 in lbs
We = 112.4 / [(0.186)•(22 )] = 151.1 in lbs
V3 - Select from Model Rating Chart: MC 150H
V4 Up Incline With Propelling Force Elevator, Inclined Power Conveyor
F = (Fp)-(W)•SIN A
E1 = (0.186)•(W)•(V2 )
E2 = (F)•(s)
E3 = E + E 1 2
E4 = (E )•(C) 3
We = E / [(0.186)•(V 3 2 )]
W = 450 lbs
V = 1 ft/sec
Fp = 600 lbs
A = 90°
C = 60/hour
s = 1 inch
F = (600)-(450)•SIN(90) = 150 lbs
E 1 = (0.186)•(450)•(1 2 ) = 83.7 in lbs
E 2 = (150)•(1) = 150 in lbs
E 3 = 83.7 + 150 = 234 in lbs
E 4 = (234)•(60) = 14,040 in lbs/h
We = 2341 / [(0.186)•(1 2 )] = 1,258.1 lbs
V4 - Select from Model Rating Chart: MA 600 or SC 650-4
V5 Down Incline with Counter Weight Lifting Door with Counter Balance
F = (W)•SIN (A)-Wcw
E1 = (0.186)•(W)•(V2 )
E2 = (F)•(s)
E3 = E + E 1 2
E4 = (E )•(C) 3
We = E / [(0.186)•(V 3 2 )]
W = 1,500 lbs
V = 0.5 ft/sec
A = 45°
Wcw = 500 lbs
C = 1/hour
s = 1 inch
F = (1,500)•SIN(45)-500 = 560.7 lbs
E 1 = (0.186)•(1,500)•(0.5 2 ) = 69.8 in lbs
E 2 = (560.7)•(1) = 560.7 in lbs
E 3 = 69.8 + 560.7 = 630.5 in lbs
E 4 = (636)•(1) = 630.5 in lbs/h
We = 630.5 / [(0.186)•(0.5 2 )] = 13,559.1 lbs
V5 - Select from Model Rating Chart: ML 3325
Inclined and Vertical Sizing Examples
Air-Oil Systems, Inc. www.airoil.com
E 1 = Kinetic Energy (in lbs)
E 2 = Propelling Force Energy (in lbs)
E 3 = Energy per Cycle (in lbs)
E 4 = Energy per hour (in lbs/hour)
We = Effective Weight (lbs)
ACE Controls Inc. · 800-521-3320 · (248) 476-0213 · Fax (248) 476-2470 · www.acecontrols.com · email: shocks@acecontrols.com
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