Rectrix (January 2015)

8/9/2019 Rectrix (January 2015)

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RECTRIX1Volume 3,Issue1

From the Department of Aeronautical Engineering

Rajalakshmi

Engineering

College

In Short

Future Tech of A380 Pg.1

Grounded Wrights? Pg.2&3

Noise Reduction Pg.4

Crossword Pg.4

News Pg.5

News From the Department

3rd Year Students Anitha M., Jeevan

Prabhakaran, Jothi A., Keerthana R.

S., Vimalarasan N., and Yamini P.

had underwent an internship program

at Taneja Aerospace & Aviation Ltd,

Hosur on fabrication procedures of

utility aircrafts.

Vigneshwaran P. and Poorvika R.

presented a technical paper on

hybrid nano particles infused poly

urethane foam for re entry vehicle in

Advanced materials for defense and

aerospace application, AMDA 2014held at BITS (Pilani), Hyderabad.

Greener, cleaner, quieter and

smarter, the A380 is setting new

benchmarks for the global aviation

industry with its superior efficiency,

profitability and operational

effectiveness. Not only setting new

passenger comfort standards, it is

also is raising the bar for

environmental standards with its low

fuel consumption and noise levels, as

well as reduced CO2 and NOx

emissions.

Future aircraft could be built

using a bionic structure that mimics

the bone structure of birds. Bone is

both light and strong because its

porous interior carries tension only

where necessary, leaving space

elsewhere. By using bionic structures,

the fuselage has the strength itneeds, but can also make the most o

extra space where required. This not

only reduces the aircraft's weight and

fuel burn, but also makes it possible

to add features like oversized doors

for easier boarding and panoramic

windows.

The cabin's bionic structure will be

coated with a biopolymer membrane,

which controls the amount of natural

light, humidity and temperature,

providing opacity or transparency on

command and eliminating the need

for windows. This smarter structure

will make the aircraft lighter and

more fuel-efficient while giving

passengers 360 degree views of the

skies. This will offer unparalleled,

unobstructed views of the wonders

of the five continents - where you will

be able see the pyramids or the Eiffel

Tower through the transparent walls

of the aircraft.

Future materials may not even be the

materials we see and use today.

'Composite' materials (new matter

made of a combination of differentmaterials) will be used. In the future

materials may not even take a solid

state, but could be a composition o

fluid and gas.

Materials that change shape and

return to their initial form, growing

like the leaves of a plant, are a very

real possibility. Morphing materials

might be metals or polymers that

have a 'memory'; or are covered with

a 'skin' that will instigate a shape

change. A memory is created using

sensor and activator systems that

give materials a certain level of

artificial intelligence, allowing them

to adapt to the passengers' needs.

Materials will be self-cleaning.

Think of the leaves of a lotus plant,

which water rolls off in beads, taking

contaminants with it. Today, coatings

inspired by this are used on the

surfaces of cabin bathrooms. In the

future they will be found on the

fabric of seats and the carpets.

These intelligent materials could also

be self-repairing, which is alreadyused today in surface protection.

Certain paints can seal a scratch by

themselves, just as the human skin

does.

Future Technologies of Airbus A380- M. Saravanan (3rdYear)


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RECTRIX2Vol3. Issue 1

On December 17, 1903, the

Wright brothers launched their

fragile first plane, catapulting us

into the Century of Flight. Starting

with a linen-and-fabric machine

barely controllable aloft,

aviations giants has given us

routine jet travel as an everyday

conveniencea necessity even.

The pioneers we celebrate today

would be thrilled at the extent to

which flight has transformed the

world. But they would also be

shocked at the extent to which

our culture has abandoned the

values and attitudes that madetheir feats possible. Where the

world once embraced progress

and admired the innovators who

brought it, today we want the

benefits of progress without its

costs or risks, and we condemn

the profit motive that drives

innovation.

A century ago all understood that

progress comes at a price andwere willing to pay it. Orville

Wright was hospitalized after a

crash that killed his first

passenger; Clyde Cessna, the

founder of Cessna Aircraft

Company, only earned his wings

after 12 crashes. If you are

looking for perfect safety, you will

do well to sit on the fence and

watch the birds, wrote WilburWright. But the risks these early

aviators took were calculated and

deliberately accepted. They

stemmed not from irrational folly,

but from their willingness to

accept the responsibility of

independent judgment.

Today we seek to escape the

responsibility of judgment while

demanding that progress be risk-

free. New products are expected

to be instantly perfect, to last

forever and to protect us from

our own failings. By the late

1970s, general aviation accidents

reached their lowest point in 29

yearsyet liability lawsuits were

up five-fold, and manufacturers

were sued for even such obviouspilot errors as running out of fuel.

Aviation was born in a culture

that valued the entrepreneurial

spirit of its pioneers, and

respected their right to pursue

their work unhindered bygovernment controls. The Wrights

and the innovators who followed

themgiants like Boeing, Cessna,

and Learwere motivated by

more than just the challenge of

overcoming scientific obstacles:

they sought to make money and

profit from their achievements.

Courts protected the pioneers

intellectual property rightsgranting the Wright brothers a

Have We Grounded The Wright Brothers ?- Niveditha B. ( 2ndYear)

The dynamic brake test in the testing phase of this aircraft'sdevelopment cost more than $1,000,000 per test.

Airports in US alone cater to about 29000 domestic andinternational flights each day.

Under most circumstances it is prohibited to carry mercury onboard a flight. This restriction is because a very small amount ofmercury can cause a serious damage to aluminium and mostairplanes are made of aluminium.

- Krishnarjun D. (3rdYear)

FACTSC

ORNER

Quote of the Month


4/7


Have We Grounded The Wright Brothers ?(Continued)

broad patent for theirinventionandgovernment left thefield of aviation freeto innovate. Prior to

1926 there were nopilots licenses, noaircraft registrations,not even any rulesgoverning the carryingof passengersand theaviation industry tookoff.

In this climate ofpolitical freedom,airplanes evolved

from wooden, scarydeathtraps to capabletraveling machines.The pace ofinnovation was rapidas planes improved, inunder 25 years, fromthe Wright brothersrickety contraption,which flew 852 feet,to Lindberghs plane,which crossed anocean.

Yet by the 1930s thegovernment hadbegun regulating theairlines, masterplanning routestructures andsuppressingcompetition. Today,innovation has groundto a halt under theweight of governmentcontrol. Unlike the

first 25 years of flight,the last 25 have seenfew major advancesand regulatorybarriers suppress the

adoption of newtechnology. Forinstance, most FAA-certified aircraft todayare still the samealuminum-and-rivetsconstructionpioneered more than50 years ago, while forat least a decade non-certified experimental

aircraft builders havepreferred compositematerials, which maketheir aircraft stronger,roomier, cheaper, andfaster at the sametime.

Even after thesupposed airlinederegulation in the1970s, FAArequirements, TSAstandards,

antitrust regulation,municipal airportregulations,environmentalrestrictions, and amultitude of taxes andfees have crippledworld aviation.Instead of the growthand innovation one

might expect from adynamic industrysafely providing an

invaluable service,aviation hasstagnatedmired inbillion-dollar lossesand bankruptcy.

Where once wevenerated the boldexploration of newfrontiers, we nowcondone bureaucratsputting shackles onanyone who seeks totest the untriedtosoar too high orsucceed too well.

On this historic 111-year anniversary offlight, we shouldrededicate ourselvesto the cultural valuesthat made aviation. Ifwe truly want to seecontinued progressinaviation andelsewherewe mustembrace it

wholeheartedly, andwe must leave ourgiants of industry freeto innovate withoutbeing taxed,regulated, and usedout of existence.

Once Muhammad Ali (TheBoxing Legend) was on an

airplane. The flight attendant

came and asked him to buckle

his seatbelt.

He replied, Superman don't

need no seatbelt.

She responded, Superman

don't need no airplane.

Follow us on FACEBOOK

www.facebook.com/RectrixMagazine

Joke Corner


5/7


Do you have articles?

Email to : [email protected]

TWO SCIENTISTS FROM IISc EVOLVE DEVICE

TO CUT NOISE FROM PLANES

S. Manivannan (3rdyear)Millions of people around the world who stay close to

airports, and have to suffer every time a plane lands

or takes off because of the unbearable noise, could

finally get some peace. Scientists at the Indian

Institute of Science (IISc) are developing a new

'nozzle', a device used in aircraft that can reduce the

noise levels as well as boost the performance o

aircraft engines.

A two-member research team from IISc has

developed a couple of such nozzles that can reduce

noise emitted by the engines while providing better

thrust to the aircraft.

Prof Gopalan Jagadeesh, professor at Department for

Aerospace Engineering, IISc, and Dr.Srisha Rao, a PostDoctoral Fellow at Muroran Institute of Technology,

Muroran, Hokkaido, Japan, have been working on

developing the two nozzles for four years since the

latter was a PhD student under supervision of the

former.

The two are working on nozzles which promote

mixing of different gases. Jagadeesh, who is also

associated with the laboratory of hypersonic and

shock waves, explained to Bangalore Mirror thatthese nozzles are simple tubes designed for specific

applications. Nozzles kept inside specially designed

ducts, as in a jet engine, function as ejectors which

control the velocity of hot gases produced, which in

turn ultimately control the thrust developed by the

engine. The speed generated by an aircraft directly

depends on the thrust generated by its engine.

He said the noise generated by an aircraft is due to

the engine's hot exhaust - the faster the exhaust, the

higher the decibels. The nozzles that the tworesearchers have developed enhance the mixing o

the hot exhaust coming out of the engine with the

cold air surrounding it. They found that this not only

made engines quieter, but also improved their ability

to push the aircraft.

"In aeroplane engines, ejectors are used to control

the velocity of hot gases produced, which ultimately

Professor G Jagadeesh answering a query by our student

Deepak Prem (IV year) at a recent conference at BRAU,

Chennai.

control the thrust developed by the engine," said

Jagadeesh. Their study is still figuring out how toquantify the exact measurement of sound reduction.

"One of the key concerns of the aircraft industry is

noise from jet exhaust. There is a tremendous push

towards design of quieter engines. Busy airports

experience very high noise levels that can be harmful

to human hearing over long run and affects residents

close to such airports", said Dr. Srisha Rao.

Interestingly, these nozzles will similarly benefit

refrigerators and air conditioners. The two

researchers said the nozzles have potentialapplications in next generation eco-friendly

refrigerators and fuel cells.


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Crossword Puzzle- Saravanan M. (3rdYear)

Across

2. Landing gear located under

the orbiters belly.

3. A control system using a

set of engines located on

each side of the aft fuselage

during re-entry. First word only.

4. A control surface located on the

vertical stabilizer controlling yaw.

6. This engine system is used to

move

the orbiter into orbit and out of

orbit. Middle word used.

7. Triangular shaped wings.

11. A control surface that combines

the work of an aileron and an

elevator.

13. The center of orbiters fuselage

that holds the payload.

14. The 3 Space Shuttle Main Engines

(SSME) gives this.

Down

1. Part of the crew compartment.

4. Located on the tail section it

slows the orbiters speed.

5. These doors open the cargo bay.

8. These small rocket engines

located around the orbiters nose

are the forward control.

9. Landing gear located under this

front end of the orbiter.

10. A hinged control surfaceconnected to the aft fuselage.

12. Commander of STS-93

WORLDS FASTEST

Official records point to the

Lockheed SR-71 Blackbird

as the worlds fastest,

manned jet aircraft.

It can travel with a speed

of 2194 mph or 3530

kmph.

The record was set on July

28, 1976 near Beale Airforce base, California, USA

with Eldon W. Joersz and

George T. Morgan Jr. as

pilots.


7/7

RECTRIX 6Vol3. Issue 1

ISRO's Mars Mission team has won the

prestigious 2015 Space Pioneer Award in thescience and engineering category in recognition

of achieving the rare feat in its very first attempt.

Distinguished scientist AS Kiran Kumar assumed

office as Chairman of Indian Space Research

Organization and Space Commission, and also

as the Secretary of Department of Space. After

spearheading the Indian Space Research

Organization triumphantly through severalmilestones, its Chairman K Radhakrishnan

retired today carrying the crowning glory of the

much-hailed India's mission to Mars.

Japan Airlines (JAL) has firmed up an order with

Mitsubishi Aircraft for 32 MRJ regional jets,

Having signed a letter of intent in August 2014.

Aerospace company Bombardier offered 65m

from Invest NI (Northern Ireland), the aid hascreated or safeguarded more than 2,300 jobs.

Boeing Nabs Sole Source Prime On Next Air

Force One. Boeing Nabs Sole Source Prime On

Next Air Force One. The U.S. Air Force has

chosen Boeing as the sole-source provider and

prime integrator for the multibillion dollar program

to develop the next U.S. presidential transport,

based on the companys747-8.

Chairman

Prof. Yogesh Kumar Sinha

HOD (AERO)

Coordinator

Mr. Surendra Bogadi

(Assistant Professor)

Student Editorial Board

SARAVANAN M. (2012)

KRISHNARJUN D. (2012)

SELVAKUMAR L. (2012)

NIVEDHITHA B. (2013)

RENUKA RAJAN (2013)

[email protected]

[email protected]

www.facebook.com/RectrixMagazine

+91-9381981009

+91-8056276047+91-9789028091

(Left to right in clockwise direction)

GSLV MK3 on rails to its launch pad

First successful (heavier than air aircraft)

flight by Wright brothers in 1903

Fabricated (scaled) model of Wright flyer at

REC

IL-78 tanker aircraft refueling Su30MKI

DASSAULT RAFALE omnirole fighter aircraft

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