air springs working and application

AIR SPRINGS

NASEEL IBNU AZEEZAsst. ProfessorMechanical EngineeringEmail: naseel@live.com

Its produces spring action with the help of compressed air

Components Of Air Spring

Types Of Air Springs

Working Of Air Springs

Design Considerations1. Stiffness Of The Spring Change In Pressure Change In Effective area

2.Pressure Inside The Bellow/Diaphragm

3.Stroke

4.Zero Torsion

5.Tilt Angle

Operating Temperature Range Fabric - reinforced Wingprene: - 40°F to 150°F (-40°C to 65°C) Fabric - reinforced Natural Rubber: - 76°F to 150°F (-60°C to 65°C)

Standard Materials Flex Members: Fabric - reinforced Wingprene Fabric - reinforced natural rubber

End Retainers: Forged steel Cast zinc alloy Cast aluminum

ADVANTAGES LOW COSTGenerally, initial cost is one-half or less than conventional pneumatic or hydraulic cylinders of the same force capabilities. This initial cost advantage is many times greater in he larger sizes. WIDE SIZE RANGEAir stroke actuators are available in sizes ranging from 2.2 inches to 37 inches in diameter.The force capability is 100,000 pounds. Strokes of up to 14 inches are possible.

DURABLE FOR LONG LIFE

NO MAINTENANCE OR LUBRICATION REQUIRED

FRICTION FREE FOR IMMEDIATE RESPONSE Since Air stroke actuators have no sliding seals, there is no breakaway friction as with conventional cylinders

FLEXIBLE MEDIA An Air stroke actuator can do its work with either a liquid or gas

ANGULAR CAPABILITYAn Air stroke possesses the unique capability of stroking through an arc without a clevis.Angular motion of up to 30 degrees is possible, along with the design advantage of generally less complex linkages.

Applications

Actuation Spring Vibration Isolation