Mech’o Facts: Brain Waves · Events IAETSD Vijay-awada 18th Jul 2015 International Confer-ence on Developments in Engineering Re-search ICDER 2015 Events IAETSD Goa 23rd Jul 2015

Brain Waves Department of Mechanical Engineering JEPPIAAR INSTITUTE OF TECHNOLOGY

Chennai www.jeppiaarinstitute.org

Inside this issue:

ASME Activities in JIT 1

Article’s corner 6

Stair Climbing Robot 8

New Ford Car Tech Makes Traffic Jams More Bearable

12

New Camera Sensor Elimi-nates Need for Flash

13

Ivanpah – The World largest Solar power plant

15

Editorial Board 16

1.Mechanical engineering emerged as a field during the industrial revolution in Europe in the 18th century; however, its development can be traced back several thousand years around the world. 2. The engineering field requires an understanding of core concepts including mechanics, kinematics,thermodynamics, materials science, structural analysis, and electricity. 3.Many mechanical engineering companies, especially those in industrialized nations, have begun to incorporate computer-aided engineering (CAE) programs into their existing design and analysis processes, including 2D and 3D solid modelling computer-aided design (CAD)

Mech’o Facts:

Volume 2, Issue 1 , July 2015

Achiever’s Day 2015

JEPPIAAR INSTITUTE OF TECHNOLOGY had its Achiever’s Day 2015 Prizes Worth Rs.55 Lakh was being given to achiever’s and also Placement Offer letters distributed to the students by Mr.V.Viswanathan, Head – Engineering Hiring, Wipro Technologies Ltd., Chennai., & Mr.M.Sivakumar Senior project Manager, Infosys-Chennai with Dr.N.Marie Wilson, Director of Jeppiaar Institute of Technology. On that occasion our Beloved Director Released our ASME Newsletter Brain waves Volume 1 Issue IV.

Page 2 Brain Waves– The Mechanical Newsletter

ASME—BEST EDITOR AWARD

Our ASME student member SATYANARAYEN R receiving “ THE BEST EDITOR “ AWARD

from Mr.V.Viswanathan,Head – Engineering Hiring, Wipro Technologies Ltd., Chennai .

Achievements of students :

1 S.Arul Kumaran 9.06

2 V.Ashley Stephen 8.88

3

S.A.Renald Remo

M.Shree Saravanan

M.S.BalaGuru

8.69

VIII Sem Toppers

1 S.RaviKumar 8.74

2 S.Suriya raja kumaran

S.Senthikumar

8.7

3 V.Deepak 8.56

1 K.Gokul 8.40

2 P.Sai Ganesh 8.28

3 K.Senthilkumar

S.Gokulnath

8.24

IV Sem Toppers VI Sem Toppers


EVENTS:

SAE AERO MODELLING COMPETITION “ Gliders, sail planes, they're wonderful flying machines. It's the closest you can come to being a bird.”

-Neil Armstrong

The SAE Aero modelling Competition held in our collage by SAE Collegiate Club on 3 rd july 2015 has really checked the ability of our young designers and it sure did motivate many others to take and consider the design field as their own area of interest.

The Winner’s are:

First Place : Senthil Kumar K (Pre-Final year)

Shreeram S (Pre-Final year)

Second Place : Anbuselvan M (Final year)

Tamilarasan S (Final year)

Jules Antony S (Final year)

Third Place : Deepak V (Final year)

Harsha Kumar B (Final year)

Praveen Kumar S (Final year)

Page 4 Volume 2, Issue 1 , July 2015

WINNERS!!!

First Place : Anbuselvan M ,Tamilarasan S & Jules Antony S (Final Year)

Second Place : David Lamington L , Gowtham N & Dinesh R (Pre-Final Year)

Third Place : Arun V , Ashif Ahamed M & Benclinton B (Pre-Final Year)

Quiz Competition

“Agility means that you are faster than your competition. Agile time frames are measured in weeks and months , not in years.” -MICHEAL HUGOS

Quiz is the most fascinating event in our SAE Collegiate Club which test the technical knowledge of students. In order to hunt the best technically

Brain Waves– The Mechanical Newsletter


S.No Proposed Date Name of the Event

1 15/07/2015 Release of Department Newsletter (Quarterly) Volume II Issue I.

2. 22/07/2015 IAM3D Challenge –using 3D modelling software.

3. 05/08/2015 Paper presentation on recent trends in Automobile Industry

4. 19/08/2015 Technical Quiz

5. 02/09/2015 Workshop/Guest lecture

6. 16/09/2015 Group discussion Competition

7. 09/10/2015 Release of department Newsletter Volume II Issue II

Proposed calender 2015 -2016 (Odd sem)


Article Name : Upcoming Events

Article by : Niranjan Kumar R (Final Year)

Article’s Corner

Start Date Fest Name Fest Type College Name City

15th Jul 2015 International Confer-ence on Sustainable Technologies in Build-ings and Environment 15

Conference Events Sathyabama University Chennai

15th Jul 2015 ENERGEECE 2k15 Technical, Sympo-sium Events

JNN Institute of Engineering Thiruval-lur

16th Jul 2015 Enthusia '15 Cultural, Manage-ment, Literary, Other Events

MIT SOM College Pune

16th Jul 2015 Fundamentals of Lab-view & It's Application

Technical Events Jeppiaar Engineering College Chennai

18th Jul 2015 Pegasus 2015 Cultural, Sports, Literary, Sympo-sium Events

Christian Medical College CMC

Vellore

18th Jul 2015 International Confer-ence on Advances in Engineering Research ICAER 2015

Events IAETSD Vijay-awada

18th Jul 2015 International Confer-ence on Developments in Engineering Re-search ICDER 2015

Events IAETSD Goa

23rd Jul 2015 Hands-on Training on Network Simulator (NS-2)

Workshop Events Kongu Engineering College Erode

23rd Jul 2015 TATS 2015 Workshop Events Velammal Engineering

College

Chennai


Start Date Fest Name Fest Type College Name City

24th Jul 2015 International Con-ference on Com-puter & Commu-nication Tech-nologies 2015

Technical, Work-shop, Confer-ence, Seminar Events

CMR Technical Campus Hyderabad

24th Jul 2015 International Con-ference on Com-puting Paradigms (ICCP-2015)

Conference Events

Don Bosco College Yelagiri

25th Jul 2015 Meacon 15 Technical Events Velammal Engineering Col-lege

Chennai

25th Jul 2015 International Con-ference on Emerging Trends in Engineering Research ICETER 2015

Events IAETSD Hyderabad

25th Jul 2015 International Con-ference on Cur-rent Innovations in Engineering and Technology ICCIET – 2015

Events IAETSD Bengaluru

27th Jul 2015 SINTACS '15 Symposium Events

Sri Sairam Institute of Tech-nology

Chennai

28th Jul 2015 MESSI 15 Technical, Sym-posium Events

Sri Sairam Institute of Tech-nology

Chennai

1st Aug 2015 International Workshop on Automotive IC Engines - Horse Power 2015

Workshop Events Top Engineers Pvt Ltd Chennai

1st Aug 2015 International Workshop on Ethical Hacking IWEH '15

Technical, Work-shop Events

Coimbatore Institute of Technology

Coimbatore

1st Aug 2015 International Con-ference on Ad-vances in Engi-neering Research ICAER 2015

Events IAETSD Chennai

Page 8 Brain Waves– The Mechanical Newsletter Volume 2, Issue 1 , July 2015

Stair Climbing Robot

The objective of this project was to build a machine capable of climbing stairs. The machine called “Sojourner” was built to meet the requirements of “Bulk Material transporter” student design contest organized by the ASME. The structure of the machine was based on the Tri-wheel configuration patented on October 24th, 1967 by Robert W. Forsyth and John W. Forsyth, assignors to Lockheed Aircraft Corporation, California, USA. The transporter is driven by four sets of wheels - two tri-wheels in the front and two normal circular wheels at the rear. Tri-wheels here refer to a system of three wheels sandwiched between two Y-frames. This design allows for two kinds of motion of the wheels of the tri-wheel system – first, about the axis through the centre of each of the wheels and second, the rotatory motion about the axis of the tri-wheel system itself. This flexibility empowers he transporter to climb steps easily. A well functioning prototype has been designed and manufactured in our lab. This transporter is able to passively overcome unstructured obstacles and climb steps (more specifically) up to 12 cm in height.

One of the most important constraints was to fit the entire machine within a given volume of 30 cm*25 cm*25 cm. In order to accommodate constraint, we could provide the triwheel system on the front of the transporter only. A machine with tri-wheel systems replacing all four conventional wheels of a four-wheeled car provides an ideal demonstration of concept. The entire project was funded by Umesh Mashruwala Innovation Cell (UMIC), IIT Bombay.

The functional part of this design is the tri-wheel system replacing the conventional front wheels of a car. Each Tri-wheel system comprises of three wheels of diameter 10 cm and two Y-frames, each with an arm length of 12 cm. The wheels are mounted onto the frames at a distance of 6.67 cm from the centre of the Y. The frames basically function as supports sandwiching the wheels between them. A sunplanet system of gears is provided in order to drive the wheels of a tri-wheel system. The sun-planet arrangement ensures equal torque transmission to each of the wheel while also forcing them to rotate in the same direction with equal rpms.

Article by : ARUN V (Pre-Final Year)

Page 9 Brain Waves– The Mechanical Newsletter Page

Supercharger for motorcycle & small automobile

Supercharger dramatically improves, up to 75%, performance of an internal combustion engine used for motorcycles, mopeds, scooters, and small cars with a displacement of 50cc to 1,500cc. The Supercharger is an easily manufactured positive displacement air pump. This inexpensive "true" air compressor has a simple design, acceptable reliability and light weight.By supplying compressed fresh air the proposed Supercharger dramatically

improves performance of an internal combustion engine used for motor-cycles, motor bikes (monkey and ape like), scooters, and even small cars.

The Supercharger is a positive displacement pump. This "true compressor" has a simple design, acceptable reliability and light weight. Easily manufactured, mass production of the device creates an inexpen-sive air pump which offers power boosting and torque increase of up to 75%. Motorcycle and small car engines with a displacement of 50cc to 1,500cc enjoy the greatest benefit from the Supercharger running at 500rpm through 12,000rpm. Optimal benefit is in 50-350cc displacement

engines – continuous use and 400-1,500cc displacement engines – for short-term implementation like street rac-ing. Also the Supercharger may be used to improve performance of some two-stroke engines.

Significant features of the technology: 1. Engines equipped with this Supercharger have higher (40% to 75%) torque at lower RPM 2. Manufacturing cost is 5 to 10 times lower than similar products available on the market 3. The Supercharger is easily adapted to a broad range of power train designs, requiring simple installation to pro-vide an optimal fresh air supply

Article by : SENTHIL KUMAR K(Pre-Final Year)



Sci-Fi Cloaking Device Could Protect Soldiers from Shock Waves

A researcher at the defense company Boeing has filed a patent for a sci-fi-esque cloaking device that would protect soldiers from intense shock waves generated by explosions. The just-issued patent (No. 8,981,261) to Boeing envisions stopping shock waves using a veil of heated, ion-ized air. Such a "shield" would damp the force of explosions. It doesn't build an invisible wall of force, but rather makes shock waves bend around objects, just as some high-tech materials bend light and make things invisible. Brian J. Tillotson, a senior research fellow at Boeing, said the idea occurred to him after noticing the kinds of inju-ries suffered by soldiers who served in Iraq and Afghanistan. "We were doing a much better job of stopping shrap-nel," Tillotson told Live Science. "But they were coming home with brain injuries." Though the armor plating on a military vehicle might stop the debris from a roadside bomb from injuring a soldier, it can't shield against theshock waves generated by such explosions. The blast wave goes right through a

human body and causes massive trauma.

Tillotson's invention is a device that would heat the air in front of the spot where the bomb goes off. In one version, a detector "sees" an explosion before the shock wave hits. The detector is connected to an arc generator, basically two ends of a circuit connected to a large power source. When the system generates enough current, an arc of electricity jumps between the two ends of the circuit, like a bolt of lightning. That arc heats and ionizes, or charges, particles of air. The heated air would work as a shield by changing the speed at

which shock waves travel, and therefore bending them around a protected soldier, Tillotson said. Sound waves propagate faster in hot air, Tillotson said. For that reason, the shock wave would speed up when it hits the heated air around the electrical discharge. As the shock wave speeds up, it would change direction slightly, or refract, away from the person or object behind the arc. That bending occurs because of the change in speed of the wave, and the shape of the area of hot air the shock wave hits determines the exact direction. The process resembles the way lenses bend light, Tillotson said."With a convex lens you focus the light," he said. "A concave lens spreads it out." Light waves move slower in glass, so when light hits a glass surface it bends. The lens must be concave to spread out that light. Be-cause shock waves move faster in hotter air, a spherical or cylindrical area of hot air will cause the shock wave to bend, this time spreading out just like the light through a concave lens, becoming weaker. In doing so that hot-air shield could deflect shock waves. Arc generators aren't the only way to ionize air. Lasers would also work, Tillotson said. A laser fired across the path of an explosion would ionize and heat the air around the beam, creating the lensing effect. In another method, a strip of some metal could be placed on the side of a truck, for example. "Put a couple of kilo-amps [thousands of amperes] through a strip of metal, and it will vaporize," he said. The vaporized metal once again heats the surrounding air.

Article by : SENTHIL KUMAR K(Pre-Final Year)

Page 11

3D-Printing a Low-Cost Satellite


seeking a low-cost way to launch their experiments into space, a team of scientists has designed a space-Eeady, 3-D printed CubeSat.CubeSats are standardized, tiny satellites, often only 10 centimeters (3.9 inches) on each side and weighing less than 1.33 kilograms (just under 3 lbs). They are so small that they have room for only a few sensors, and burn up in the Earth's atmosphere after just a few months. Kits cost under $10,000, which is con-sidered cheap for the space industry. But Jacopo Piattoni of the University of Bologna and his team aim to drive the satellites' price down even further, while making the devices easier to customize. In 3D printing, a computer-directed nozzle "prints" a three-dimensional object in plastic. Often, engineers use this method to design a prototype for a product that will then be built out of metal or another, sturdier medium. But Piattoni’s team hopes their plastic CubeSat could survive launch and low-Earth orbit. Using 3-D printers, researchers can automate the CubeSat production process. “We don’t need a technician,” Piat-toni said, adding that this also makes the process faster. In fact, ABS plastic was famously indicted in a massive seat-belt buckle recall in the mid-90s because UV radiation weakened buckles made from the material. But such radiation, even at elevated levels, won't pose a prob-lem for the CubeSat, due to its short lifetime. With one successful satellite constructed, the team can now use the 3-D printer to crank out another copy each night. They can also test new designs or build support for other sensors or modules, just by clicking a few buttons on a computer. The final product passed its tests with flying colors. Now, like most other CubeSats, it will hitch a ride into space as secondary cargo on a rocket already headed to its preferred orbit. Piattoni's team is working with QB50, which will put 50 CubeSats into orbit at once on a Russian Shtil-2.1 scheduled to launch in 2014. The satellite was designed and tested by Piattoni and researchers in the University of Rome's Department of Astronautical, Electrical and Energy Engineering and the Department of Mechanical and Aerospace Engineering.

Article by : ANBUSELVAN M(Final Year)

NASA Turns to 3D Printing for Self-Building Spacecraft The CubeSat’s sensors and computer chips, of course, weren't printed in the lab, and the team had to add a small, metal heat sink to disperse the electronic compo-nents' heat. The method holds promise, though. When the researchers tested the chassis in near-space con-ditions, "it did really well," Piattoni said.



New Ford Car Tech Makes Traffic Jams More Bearable

The evolution of cruise control led to adaptive cruise control, which enables drivers to maintain a safe dis-tance behind a vehicle in front based on the leader's variable speed, and in some cases to do this all the way to a stop. Now, Ford Motor Co. says it is working on the next step beyond this––an adaptation of adaptive cruise control and related technologies that will keep the car moving the same way in a traffic jam––along with other car tech inno-vations aimed at reducing driver stress levels and letting the car take on even more of the driving task than it can already. Ford’s new auto tech includes, for example, a system that could warn a driver about an impending collision sooner if it senses that the driver is tired, giving him more time to respond, and an automatic perpendicular parking system that complements the automatic parallel parking system available from Ford and other automakers today. How it all works:

• Traffic Jam Assist employs the radars and cameras already used by Ford's "active park assist" automated par-allel parking system, adaptive cruise control and Lane Keeping Aid, as well as the company's PowerShift transmis-sion, to both maintain pace and distance and provide automated steering control in congested traffic. • Active park assist for perpendicular parking uses the vehicle's rear parking distance control sensors to moni-tor obstructions not seen by the driver while it automatically backs the vehicle into a parking space. • Workload Estimator "health and wellness" monitoring technology uses biometric feedback sensors––such as heart rate and body temperature sensors built into the steering wheel and a breathing rate sensor built into the driver's seatbelt––as well as a cabin temperature sensor, plus data gleaned from the sensing systems of the car's driver-assist technologies, to figure the driver's cognitive workload (his mind's ability to deal with everything going on around him). Thus, for example, if the driver is cognitively stressed or otherwise health-impaired while merging into a congested highway, the car may dynamically adjust the alerts it sends and also autonomously block incoming

Article by : SENTHIL KUMAR K(Final Year)

Page 13


New Camera Sensor Eliminates Need for Flash

No flash? No problem. A new imaging sensor could soon make it possible for photographers to take clear, sharp photos, even in dim lighting. Created by a team of researchers at Nanyang Technological University (NTU) in Singapore, the new sensor is highly sensitive to both visible and infrared light, which means it could be used in everything from the family Nikon to surveillance and satellite cameras.

Graphene, which is a one atom-thick layer of the mineral graphite, has already earned a reputation as the building material of the future. Andre Geim and Konstantin Novoselov took home the Nobel Prize in physics in 2010 for their work with the compound. The inventor of the new sensor, Wang Qijie, an assistant professor at NTU's School of Electrical and Elec-tronic Engineering, said this is the first time that a broad-spectrum, high photosensitive sensor has been made us-ing pure graphene. We expect our innovation will have great impact not only on the consumer imaging industry, but also in sat-ellite imaging and communication industries, as well as the mid-infrared applications." Wang said the key to his new sensor is the use of "light-trapping" nanostructures that use graphene as a base. The nanostructures hold onto light-generated electron particles for much longer than conventional sensors. This results in a stronger than usual electric signal, which can be processed into an image, like a photograph cap-tured by a digital camera. Most of today's camera sensors use a complementary metal-oxide semiconductor as a base. But Wang said that his graphene base is far more effective, producing clearer, sharper photos. And, according to Wang, he even took current manufacturing practices into account when designing this new sensor. In principle, the camera industry will be able to keep using the same process to make its sensors, but simply switch out the base materials for graphene. If the industry chooses to adopt his design, Wang said it could lead to cheaper, lighter cameras with longer battery


Article by : ARUN V( Pre-Final Year)

The sensor, which is 1,000 times more sensitive to light than the imaging sensors of most of today's cameras, gets this high photo-response from its innovative structure. It's made of graphene, a super strong carbon compound with a honeycomb structure that is as flexible as rubber, more conductive than silicon and which resists heat better than a diamond.


Robots Designed Only To Feel Pain

T his robot dental patient screams "Ouch!" when a trainee dentist screws up. The Simroid dental therapy simulator has sensors in its mouth and an optional gag reflex, in case the dentist goes too far. Forget robots that selflessly care only about your pain the cutting edge is robots that feel pain, and model it for humans. New robots are designed to sense your moods or to freak out when you grope them.

And then there's the Korean robot called Haemi (Korean for "Hamster") which senses your emotional state and tries to mirror it with body language and expression. Korean Ph.D student Kwak So-Na won first prize in the Institute of Electrical and Electronics Engineers' 2006 Robot Companion Design Contest for Students. She says future versions of Haemi could change colour depending on your feelings, like mood rings. Who wants a robot dog that doesn't like being petted? The Mio, which comes out soon, shows its pleasure when you stroke it. The robot has touch sensors behind its ears, under its chin, on its back. What happens if you try to hurt it? Probably nothing, but we'll find out in October. You know there has to be a market for pets that you can torture without guilt. Robots won't really be able to interact with their environment unless they have some sense of "bad touch." A real-istic pain sensor is probably one a crucial step towards real world.

ARTIFICIAL MAN IS THE NEXT!!!

Page 15 Brain Waves– The Mechanical Newsletter Page 15

IVANPAH - The largest solar power plant in the world

T he $2.2 billion Ivanpah Solar Electric Generating System, owned by NRG Energy Inc., Google Inc. and Bright Source Energy, can produce nearly 400 megawatts enough power for 140,000 homes. Some of the 300,000 computer-controlled mirrors, each about 7 feet high and 10 feet wide, reflect sunlight to boilers that sit on 459-foot towers.

A windy stretch of the Mojave Desert once roamed by tortoises and coyotes has been transformed by hundreds of thousands of mirrors into the largest solar power plant of its type in the world, a milestone for a growing industry that is testing the balance between wilderness conservation and the pursuit of green energy across the American West. The Ivanpah Solar Electric Generating System, sprawling across roughly 5 square miles (13 sq. kilometers) of federal land near the California-Nevada border, formally opens on Thursday after years of regulatory and legal tangles ranging from relocating protected tortoises to assessing the impact on Mojave milkweed and other plants. The opening of Ivanpah is “a dawn of a new era in power generation in the United States,” said Rhone Research, president of the Solar En-ergy Industries Association, a trade group. “We are going to be a global leader in solar generation.” The plant’s dedication comes as government continues to push for development of greener, cleaner power. According to U.S. Energy Information Administration data, the cost of building and operating a new solar thermal power plant over its lifetime is greater than generating natural gas, coal or nuclear power. It costs a conventional coal plant $100, on average, to produce a megawatt-hour of power, but that figure is $261 for solar thermal power, according to 2011 estimates. The figures do not account for incentives such as state or federal tax credits that can impact the cost.

Jeppiaar Institute of Technology

Editorial Board

1. Chief Mentor : Dr.N.MARIE WILSON B.Tech., M.B.A., Ph.D.

Director, Jeppiaar Institute of Technology.

2. Coordinator : Dr.T.VENKATAMUNI, HOD Mechanical Dept.

3. Chief Editor : NIRANJAN KUMAR R (Final Year)

4. Co-Editors : ARUN V (Pre-Final Year)

Senthil Kumar K (Pre-Final Year) NEWSLETTER PUBLICATION SCHEDULE : JULY, OCTOBER, JANUARY, APRIL.

Mail your articles and Feedback to [email protected]

BRAIN WAVES, MECHANICAL DEPARTMENT, JIT, CHENNAI

Jeppiaar Nagar, Kunnam, Sriperumbudhur tk,

Chennai-631 604

Ph. No: 044-27159000

www.jeppiaarinstitute.org

What’s in our next issue?

1. ASME Activities

2. Smart Energy for a Brighter Future

3. Wearable Technology

4. Largest power producing facilities

5. Smart Cities

"Self Belief. Self Discipline. Self Respect"

Documents

Mech’o Facts: Brain Waves · Events IAETSD Vijay-awada 18th Jul 2015 International Confer-ence on Developments in Engineering Re-search ICDER 2015 Events IAETSD Goa 23rd Jul 2015