Engineering Facts

SOLID ROCKET BOOSTER ( SRB )




 Solid rocket boosters (SRB) , are used to provide thrust in spacecraft launches from the launchpad up to burnout of the SRBs.


The Solid Rocket Boosters (SRBs) operate in parallel with the main engines for the first two minutes of flight to provide the additional thrust needed for the Orbiter to escape the gravitational pull of the Earth.


At an altitude of approximately 45 km (24 nautical miles), the boosters separate from the orbiter/external tank, descend on parachutes, and land in the oceans.


They are recovered by ships, returned to land, and refurbished for reuse. The boosters also assist in guiding the entire vehicle during initial ascent. Thrust of both boosters is equal to 5,300,000 lbs.


CLOSE DIE FORGING OPERATION:
Closed Die Forging is a forging process in which dies move towards each other and covers the workpiece in whole or in part. The heated raw material, which is approximately the shape or size of the final forged part, is placed in the bottom die. The shape of the forging is incorporated in the top or bottom die as a negative image. Coming from above, the impact of the top die on the raw material forms it into the required forged form.


PURPOSE AND FUNCTION OF A CLUTCH
..........................................................
The clutch assembly is located between the engine and the transmission/transaxle. The purpose and function of a clutch include the following:


1-To disconnect the engine from the transmission/transaxle to permit the engine to remain running when the vehicle is stopped and to permit the transmission/transaxle to be shifted
Connect and transmit engine torque to the transmission/ transaxle


2-To dampen and absorb engine impulses and drivetrain vibration


3-To provide a smooth engagement and disengagement between the engine and the transmission/transaxle.




Anti-lock braking system (ABS) :- 


Anti-lock braking system (ABS) is an automobile safety system that allows the wheels on a motor vehicle to maintain tractive contact with the road surface according to driver inputs while braking, preventing the wheels from locking up (ceasing rotation) and avoiding uncontrolled skidding.













Difference between Bolt, Screw and Stud.


 

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