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PRESENTATIONON

SMART BOMBSMART BOMB

BY: SUSHIL KR. YADAV EN - III YEAR 0202921054

CONTENTS

BASIC CONCEPT OF BOMB.FUZE MECHANISM .DUMB BOMB .SMART BOMB. SMART BOMB BASIC .YESTERDAY’S SMART BOMB.TV/IR GUIDED BOMB .REMOTE OPERATION MODE .THE J.D.A.M.

BASIC CONCEPT OF BOMB

Basic concept of a bomb could hardly be simpler

Grenades have played a part in welfare for hundred of year

They were originally developed around 1000AD by the chinese The typical design of these early grenades was a hollow metal container filled with gun powder.

By the 18th century , these weapons had fallen out of favour

FUZE MECHANISM

Material,resulting in an explosion

A target proximity sensor –witch sets the bomb off.

A fuze may be a mechanical or electrical system

A conventional bomb consists some explosive material

When the trigger off ,the fuze

such as a bomb ordetonate an explosive charge or device

into sturdy case with a fuse mechanism .

ignites the explosive

.

packed

SUPPLYCONTROLCIRCUIT

TIMERTRIGGERINGCIRCUIT

IGNITION CIRCUIT

GENERAL COMBINATION OF CIRCUITS FOR IGNITION IN A BOMB

DUMB BOMB

A "dumb bomb" is a bomb with only these elements,

The bomb is considered "dumb" because it simply falls to the ground without actively steering itself Needless to say, it's some feat hitting a target precisely with this type of weapon.

A bomber might have to drop dozens, or even hundreds of dumb bombs to take out a target effectively.

SMART BOMB

“Smart bombs," by contrast, control their fall precisely in order

to hit a designated target dead on.

SMART BOMB BASICS

An electronic sensor system.

A built in control system.

A set adjustable flight fins.

A battery.

The control system and adjustable fins give the bomb

a way to steer itself as it glides through the air.

While the bomb is "in flight," the sensor system

and control system track the designated target on the ground

The sensor system feeds the control system the relative

position of the target, and the control system

processes this information and figures out how

the bomb should turn to steer toward the target.

To actually turn the bomb, the control system sends

a message to actuators that adjust the flight fins.

YESTERDAY’S SMART BOMB

-TV/IR guided bomb -Laser guided bomb

Both use visual sensors to locate Ground targets

This smart bomb, enhanced guided bomb unit -27,Has an optical sensor system ,an on board computer,Adjustable flight fins and a battery that power everything.

YESTERDAY’S SMART BOMB

(Both use visual sensors to locate Ground targets .)

TV/IR guided bomb.

Laser guided bomb.

A TV/IR-guided bomb has either a conventional television video camera or an infrared camera (for night vision) mounted to its nose.

In remote-operation mode, the controller relays information through radio signals to a human operator

who is usually onboard the bomber plane.

The remote operator relays commands to the control system

to steer the bomb through the air -- the bomb acts

something like a remote-control plane.

In this mode, the operator may launch the

bomb without a specific target and sight, and then

pick up the target from the video as the bomb gets closer to the ground

In automatic mode, the pilot locates a target through

the bomb's video camera prior to launch and

sends a signal to the bomb telling it to lock on to the target.

The bomb's control system steers the bomb

so that the indicated target image always stays near the

center of the video display. In this way,

the bomb zeros in on the locked target automatically.

Laser-guided smart bombs work a little differently

Instead of a video camera sensor, the bomb has

a laser seeker -- an array of photo diodes.

As you might expect, the photo diodes are sensitive

to a particular frequency of laser light. For the bomb to see

its target, a separate human operator, either on the ground or in the air, has to "paint" the designated target with a high-intensity laser beam.

The laser beam reflects off the target, and the laser seeker picks it up.

The GBU-15,A TV/IR SMART BOMB

The GBU -10 LASER GUIDED BOMB

THE J.D.A.MJoint direct attack munition

Adjustable tail fins.

control computer.

inertial guidance system.

GPS system.

The JDAM

The preeminent smart-bomb technology of the day is Boeing's JDAM,

which stands for Joint Direct Attack Munition.

The basic idea behind the JDAM program is to outfit existing

"dumb" bombs with sophisticated rear guidance sections.

The JDAM "tail kit" includes adjustable tail fins, a control computer, an inertial guidance system and a GPS receiver.

Both the GPS receiver and the inertial guidance system allow the bomb to locate itself in space. The GPS receiver figures out its position by interpreting GPS satellite signals while the inertial guidance system monitors the bomb's movements, tracking its path from its launch position.

The JDAM Bomb

SMART BOMB DURING EXPLOSION

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