Enrollment No. 130140119052 Name of Student: PAREKH KISHAN JAGDISHBHAI.

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Presentation transcript:

Enrollment No Name of Student: PAREKH KISHAN JAGDISHBHAI

 What are pneumatics?  What are pneumatics good for?  How pneumatics work  The pneumatic system  Variations on the theme

 Mechanisms which use air pressure to apply mechanical force and displacement (work)  The pneumatic devices we use are basically binary actuators – either retracted or extended Retracted Cylinder Extended Cylinder

 Mechanisms requiring (2) discrete states  Gear shifters  Gripper articulation  Lifters  Brakes  …and a significant force or displacement

 Simple

 Easy to control

 Simple  Easy to control  Can apply a lot of force from a small, light package

 Simple  Easy to control  Can apply a lot of force from a small, light package  Force is limited by air pressure and cylinder diameter

 Simple  Easy to control  Can apply a lot of force from a small, light package  Force is limited by air pressure and cylinder diameter  No adverse consequence if cylinder is stopped (no stalled motors) or reversed – compressed air is a spring

 A significant weight “investment” (~10 lb m ) in a pneumatic system is needed for the first pneumatic device

 Cylinders can be subject to damage

 A significant weight “investment” (~10 lb m ) in a pneumatic system is needed for the first pneumatic device  Cylinders can be subject to damage  Repair impossible

 A significant weight “investment” (~10 lb m ) in a pneumatic system is needed for the first pneumatic device  Cylinders can be subject to damage  Repair impossible  Not well suited for non-binary actuation

 Pneumatic actuators are extensively used by the Chemical Process Industry due to their intrinsic safety and their ability to fail safe (w/ spring return) 2-position pneumatic actuator driving a 4-way ball valve pneumatically driven flow control valves (butterfly type)