G for Geniou$

Space elevator

noreply@blogger.com (Gavin) — Sat, 04 Feb 2012 18:29:53 PST

A space elevator is a proposed non rocket space launch structure. A space elevator made of a carbon nanotubes composite ribbon anchored to an offshore sea platform would stretch to a small counterweight approximately 62,000 miles (100,000 km) into space.

Hydraulic Pipe Bender

noreply@blogger.com (Gavin) — Wed, 25 Jan 2012 08:33:33 PST

Introduction:

Hydraulic pipe bender is used for bending almost all types of pipes except conduit pipes. The pipe benders are ideal for pipe fitters and general engineering applications. The bending capacity of hydraulic pipe bender varies as per the strength, power and performance. They are designed with extra power for large jobs and are suited for various types of bending and forming operations.

Construction:

The hydraulic pipe bender setup consists of a hydraulic jack, die of required angle, supporting blocks, pins for supporting blocks, and plates of required shape and size which are drilled with holes of required diameters. A lever having a cut slot at one end is used to loosen or tighten the pin of the jack and also to move the piston up or down by pimping action. The whole assembly is mounted on a base plate, and the plate having drilled holes is attached to the base plate by welding.

Working of Hydraulic Jack:

This system uses a piston type hand pump to power a single hydraulic cylinder and the operation is as explained:

A manual force is applied at a point A of handle ABC, which is pivoted about point C. The piston of the hand is pinned to the input handle at point B. The hand pump essentially consists of a cylinder containing a piston, which is free to move up and down. The piston and rod are rigidly connected together. When the handle is pulled up, the piston raises and creates vacuum in the space below it. As a result the atmospheric pressure forces the oil to leave the tank and flow through the check valve 1 and this is the suction process, where a check valve is a component that allows the fluid flow in only one direction as indicated by the arrow.

When the handle is then pushed down, the oil is released from the hand pump and flows to check valve 2 which enters the bottom of the load cylinder. The load cylinder is similar in construction to the pump cylinder and contains a piston. From Pascal’s law we know that the pressure acting on the load piston equals the pressure generated by the pump below its piston. Thus each time the input handle is cycled up and down; a specified volume of oil is ejected from the pump to raise the load cylinder to a given distance against its load resistance. The below valve is hand operated valve which, when opened allows the load to be lowered by bleeding oil from the load cylinder back to the oil tank. It should be noted that oil enters and exits from each cylinder at only one end.

Working:

The whole assembly is first placed on a flat surface and the pin of the jack is tightened. The piston of the jack is retracted with the help of a lever; the die is mounted on the piston and the supporting blocks are placed in between the two plates using a pin, which is for the support.

The holes in the plate are provided so that the supporting blocks can be adjusted as per the requirement. If the diameter of the pipe which is to be bent is more than the supporting blocks, then the positioning of the block will depend on the diameter and the angle to which the pipe has to be bent. As the die and the piston reciprocates, the pipe which is placed on the support will be pushed towards the supporting block and the further pushing of the block will result in bending of pipe. After the desired angle of bending is attained, giving 3 revolutions to it loosens the pin of the hydraulic jack. A special care should be taken while tightening and loosening the pin. When the pin is half loose, the piston shouldn’t be pressed which will apply pressure on the seals and they may fail and leaking of oil might occur, which is undesirable

Hydraulic Pipe Bender angle plate

noreply@blogger.com (Gavin) — Mon, 16 Jan 2012 06:26:03 PST

Samsung buys Sony's entire stake in LCD joint venture

noreply@blogger.com (Gavin) — Mon, 26 Dec 2011 00:51:41 PST

Samsung Electronics has agreed to buy out Sony's entire stake in their liquid crystal display (LCD) joint venture.

The Korean electronics maker said it will pay Sony 1.08tn won ($939m; £600m) in cash for its stake.
The move comes as Sony has been restructuring its TV business, which has been making a loss for the past seven years.
Samsung, meanwhile, has gone on to become the world's largest maker of TVs and flat screen panels.
"Under the agreement, Samsung will acquire all of Sony's shares of S-LCD Corporation, the two companies' LCD panel manufacturing joint venture, making S-LCD a wholly owned subsidiary of Samsung," Samsung Electronics said in a statement.
Tough times The joint venture between two companies was established in 2004, when a boom in the global economy saw a surge in demand for consumer electronics.
However, things have take a dramatic turn in the last three years.

Qingdao Haiwan

noreply@blogger.com (Gavin) — Wed, 16 Nov 2011 05:56:24 PST

China has unveiled the worlds longest sea bridge, which stretches a massive 26.4 miles five miles further than the distance between Dover and Calais and longer than a marathon. The Qingdao Haiwan Bridge was completed on December 27, 2010 and is 26.4 miles long - the equivalent of 174 Tower Bridges, links the main urban area of Qingdao city, East Chinas Shandong province, with Huangdao district, straddling the Jiaozhou Bay sea areas. The road bridge, which took four years and cost a cool 5.5 billion pounds to build, will be open for use in the New Year and is almost three miles longer than the previous record-holder, the Lake Pontchartrain Causeway in Louisiana.

Stars congratulate the Bachchans on baby girl

noreply@blogger.com (Gavin) — Tue, 15 Nov 2011 23:56:19 PST

Mumbai: As soon as Amitabh Bachchan announced that Aishwarya Rai has given birth to a baby girl, congratulatory messages from Bollywood stars started pouring in, welcoming the new arrival in the Bachchan family.

"Congratulations!! Baby B had a baby girl!! @juniorbachchan!!! All the love and happiness...am sure she will be the prettiest girl ever!!! (sic)," filmmaker Karan Johar wrote on twitter.

"OMG! So excited Baby B is Daddy to a little Angel! Congrats Ash n @juniorbachchan and to the entire family! Welcome sweet baby girl:)," actress Bipasha Basu said.

Javed Akhtar: "Congratulations Amitabh ji, this has evoked my memory of the day when Shweta was born. Time flies and how swiftly !!"

Anupam Kher: "CONGRATULATIONS @juniorbachchan and Ash. So so Happy. May the new arrival in the family bring more happiness, joy and peace. Love."

Petrol prices may change every 15 days: BPCL

noreply@blogger.com (Gavin) — Tue, 15 Nov 2011 23:55:06 PST

Mumbai: In a new development, oil distribution company BPCL has suggested that petrol prices are likely to change again over the next few days.

According to the company, a regular fortnightly revision is likely to happen in petrol prices.

It has further said that rupee depreciation and crude prices would be reflected in petrol in the next fortnight.

This comes a day after petrol prices were slashed by Rs 1.85 per litre, which was the first cut in the last 33 months.

Reacting to the cut, Minister of State for Petroleum and Natural Gas RPN Singh had said, "Crude oil have come down by $4 and we have passed it on to consumers. Petrol prices are deregulated."

Cyan Nokia Lumia 800 hitting UK in December, pink in early 2012

noreply@blogger.com (Gavin) — Sat, 12 Nov 2011 23:22:45 PST

As you probably know the Nokia Lumia 800 will be offered in three color versions - black, cyan and pink. However, it turns out that only one of those will be available at the launch of the smartphone next week with the other two colors arriving in the following months.
According to the latest bit of online gossip, the first Nokia Lumia 800 adopters in the UK will have no choice, but to get the black version. The cyan units will be arriving shortly after that - in the first week of December, while the pink edition will hit the shelves after Christmas.
So if you were a lady looking to buy herself a cute pink smartphone for Christmas, you might have to look elsewhere. Or settle for another color - the non-painted unibody is making this one a great looker no matter the color, really.
If you are still undecided on whether or not to jump on the Nokia Windows Phone bandwagon, you might want to check out our Nokia World 2011 coverage for plenty of live shots, videos, benchmarks and impressions of the Lumia duo.

Apple iPhone 4S

noreply@blogger.com (Gavin) — Sat, 12 Nov 2011 23:17:28 PST

Apple iPhone 4S

Hydraulic Pipe Bender

noreply@blogger.com (Gavin) — Sat, 12 Nov 2011 22:47:56 PST

http://www.youtube.com/watch?v=-Ct-XrXX2vc

Just-In-Time Manufacturing

noreply@blogger.com (Gavin) — Sat, 12 Nov 2011 18:37:51 PST

JIT is a philosophy of continuous improvement in which non-value-adding activities are identified and removed for the purposes of
Reducing Cost
Improving Quality
Improving Performence
Improving Delivery
Adding Flexibility
JIT is not about automation. JIT eliminates waste by providing the environment to perfect and simplify the processes. JIT is a collection of techniques used to improve operations It can also be a new production system that is used to produce goods or services.

Waste from Overproduction

Waste from Product Defects

Processing Waste

Transportation Waste

Hydraulic Elevators

noreply@blogger.com (Gavin) — Thu, 07 Jul 2011 22:56:15 PDT

http://www.isr.umd.edu/~austin/ense621.d/projects04.d/project-elevator.html

Wall climbing ROBOThttp://www.mechanicalengineeringprojects.net/wall-climbing-robot-wcr/2010/

noreply@blogger.com (Gavin) — Thu, 07 Jul 2011 22:42:50 PDT

Rocket plane

noreply@blogger.com (Gavin) — Thu, 07 Jul 2011 06:11:30 PDT

Exhaust Brakes

noreply@blogger.com (Gavin) — Wed, 23 Feb 2011 00:54:59 PST

Exhaust brakes slow light duty, diesel-powered vehicles quickly. They also prevent the brakes from overheating on downhill grades, as this causes brake fade and possibly even failure. Using your exhaust brakes properly can help brakes last up to three times longer
Exhaust brakes retard power in a diesel engine, but in an different way than engine brakes. Engine brakes release compressed air through an exhaust valve, but exhaust brakes hold the compression in the engine and slow the crankshaft's rotation, which reduces vehicle speed.
An exhaust brake is typically mounted on the outlet side of the turbocharger and retards the engine's ability to push out or exhaust compression. A butterfly valve in the exhaust brake stays open until it's activated. Then it closes and restricts exhaust flow by keeping it in the cylinder. This causes the piston to force the compression into the exhaust brake, which absorbs the energy

A little confusing? Think of it this way: Take a deep breath and hold it in. Now force the air into your mouth and cheeks, but don't let it out. You've just created your own little exhaust brake.

The History of Mechatronics

noreply@blogger.com (Gavin) — Wed, 23 Feb 2011 00:27:06 PST

The name "mechatronics" was originated in 1969 by senior engineer Tetsura Mori.
He was working for a Japanese company called Yaskawa Electric Corporation that was famous for building mechanical factory equipment.
At that time, Yaskawa Electric Corporation was using some electronic features for manufacturing mechanical equipment. Mori wanted to introduce a technical term for that new technology, so he combined the two technical words ‘mechanical’ and ‘electronics’ and created the new word "Mechatronics."
In 1970, Yaskawa applied to make this word a registered brand and got the rights in 1973. But, at that time this term didn’t gain much popularity. After the 1980s, the term started gaining popularity because of its useful features.
Earlier, this term was based on only some electrical and electronic computers, but after the 1980s, the use of computer technology was integrated. The controlling and functioning of machines became much easier by use computer hardware and software. This allowed the start of manufacturing of a variety of products of any size with very high accuracy and comparatively low cost.
Mechatronics, although still a new term as compared to other well established branches of engineering, now seems to be firmly established. Now, individuals and industries around the world use the term freely.
At the research and development level, mechatronics is classified into ten technical areas: Motion Control, Robotics, Automotive Systems, Intelligent Control, Actuators and Sensors, Modeling and Design, System Integration, Manufacturing, Micro Devices and Optoelectronics, and Vibration and Noise control.

Pneumatic engine

noreply@blogger.com (Gavin) — Wed, 18 Aug 2010 21:57:13 PDT

A compressed air engine having a throttle with compressed air being supplied to the throttle. The engine includes at least two cylinders each having a reciprocating piston therein. Air is supplied from the throttle to the cylinders to drive the pistons within the cylinders. A crankshaft is coupled to the pistons and is rotatably driven in response to the reciprocating motion of the pistons. Each cylinder includes an inlet valve for allowing compressed air into the cylinder during a power stroke and preventing compressed air from entering the cylinder during an exhaust stroke, and includes an exhaust valve connecting the cylinder to atmosphere during the exhaust stroke and closing the connection to atmosphere during the power stroke. The inlet and exhaust valves are auger type valves with the inlet auger valves remaining open for approximately 180 degrees of crankshaft rotation and the exhaust auger valves remaining open for approximately the remaining 180 degrees of crankshaft rotation. Operatively connected between the throttle and the cylinders are valves for selectively interrupting the flow of compressed air to at least one of the cylinders while allowing compressed air to at least one other cylinder. The valve, which interrupts the flow of compressed air to the one cylinder, allows the inlet valve of the one cylinder to communicate with atmosphere when the compressed air is disconnected from the one cylinder.

new wagon r

noreply@blogger.com (Gavin) — Wed, 14 Jul 2010 05:33:35 PDT

The much awaited best selling family car from maruti suzuki has arrived. India's largest carmaker Maruti Suzuki just launched the new WagonR. Introductory prices of new Wagon R are Rs 3.28 lakh for the base Lx variant, Rs 3.57 lakh for the mid-level LXi and Rs 3.81 lakh for the fully loaded VXi variant.

Beijing

noreply@blogger.com (Gavin) — Tue, 08 Jun 2010 23:25:06 PDT

The world's biggest airport is now finished and ready for the 2008 Beijing Olympics. The $3.5 billion gigantic dragon terminal, which is the centerpiece of the 501-square-mile complex capable of allowing 50 million passengers per year, looks even more impressive in the amazing, almost unreal photos.
The new Terminal 3 has been designed to be energy efficient, allowing for natural lightning—whenever it is possible and the city smog allows, I guess—and packing all the facilities into a single structure, rather than fragmenting them in separate buildings, the building is 17% bigger than London Heathrow T1, T2, T3, T4 and the new T5 put together.
With a total of five floors—two underground— the dragon terminal is divided into three parts: the 3C is the domestic hall, and the main passenger terminal, 3D is the Olympics hall, used for charter flights during the celebrations, and 3E is the international hall

noreply@blogger.com (Gavin) — Thu, 08 Apr 2010 22:26:47 PDT

PAYERNE, Switzerland - A solar plane with wings as wide as a 747 and the power of a small motorboat took to the skies for the first time Wednesday, cruising a mile high at low speeds for nearly 1½ hours in a step toward becoming the first sun-powered aircraft to circle the world.

In its maiden test flight, "Solar Impulse" — designed by Swiss adventurer Bertrand Piccard's team — completed a series of turns, slip maneuvers and bank angles reaching 5 degrees. Most importantly, it proved able to take off and land.

The team plans to fly it around the world in 2012, the goal being to show that renewable energy can replace fossil fuel.

noreply@blogger.com (Gavin) — Wed, 24 Mar 2010 22:38:11 PDT

When people talk about race cars or high-performance sports cars, the topic of turbochargers usually comes up. Turbochargers also appear on large diesel engines. A turbo can significantly boost an engine's horsepower without significantly increasing its weight, which is the huge benefit that makes turbos so popular!

In this article, we'll learn how a turbocharger increases the power output of an engine while surviving extreme operating conditions. We'll also learn how wastegates, ceramic turbine blades and ball bearings help turbochargers do their job even better. Turbochargers are a type of forced induction system. They compress the air flowing into the engine . The advantage of compressing the air is that it lets the engine squeeze more air into a cylinder, and more air means that more fuel can be added. Therefore, you get more power from each explosion in each cylinder. A turbocharged engine produces more power overall than the same engine without the charging. This can significantly improve the power-to-weight ratio for the engine.
In order to achieve this boost, the turbocharger uses the exhaust flow from the engine to spin a turbine, which in turn spins an air pump. The turbine in the turbocharger spins at speeds of up to 150,000 rotations per minute (rpm) -- that's about 30 times faster than most car engines can go. And since it is hooked up to the exhaust, the temperatures in the turbine are also very high. Keep reading to find out how much more power you can expect from your engine if you add a turbocharger.

Jet engine

noreply@blogger.com (Gavin) — Wed, 24 Mar 2010 22:27:36 PDT

This is a picture of how the air flows through a jet engine. Jet engines move the airplane forward with a great force that is produced by a tremendous thrust and causes the plane to fly very fast.
All jet engines, which are also called gas turbines, work on the same principle. The engine sucks air in at the front with a fan. A compressor raises the pressure of the air. The compressor is made up of fans with many blades and attached to a shaft. The blades compress the air. The compressed air is then sprayed with fuel and an electric spark lights the mixture. The burning gases expand and blast out through the nozzle, at the back of the engine. As the jets of gas shoot backward, the engine and the aircraft are thrust forward.

Submarines

noreply@blogger.com (Gavin) — Mon, 22 Mar 2010 01:25:36 PDT

The ability to stay hidden deep under the waves makes the submarine a powerful and effective warship. To travel underwater, a submarine needs a strong hull to resist high water pressure, and engines for both surface and underwater use. Submarine were used effectively as deadly weapons for the first time in world war 1.Today there are two main types of military submarines in operation. A patrol submarine searches for and atttacks enemy vessels. A missile submarine carries long-range nuclear missiles

the most powerful submarines are those that carry nuclear missiles, and are driven by nuclear engines.Each missile can destroy a large city, killing thousands of people.
Nuclear engine allow a submarine to stay submerged for much longer than other submarines, which have to return to the surface to recharge thier batteries.

Hovercraft

noreply@blogger.com (Gavin) — Mon, 22 Mar 2010 01:25:36 PDT

A hovercraft reduces water resistance by riding just above the surface on a cushion of air. the cushion is made by large fans blowing air under the hovercraft. the air is held in place by a flexible "skirt". the hovercraft is pushed along by propellers in the air.

Hovercraft can travel on to land for loading and unloading.

Pillars of Islam.

noreply@blogger.com (Gavin) — Sat, 20 Mar 2010 01:42:03 PDT

There are five duties that every muslim must obey.These are Known as five pillars of Islam.The First is Shahadah, the sincere delaration of faith that there is " no other God but Allah and the Muhammad is his prophet".

The second, Salat, means that muslim sholud pray five times a day. The third pillar, Zakah, is the gift of moneyto the poor.The fourth, Sawm,is to fast during Ramadan. The final pillar, Hajj, is the duty to make the pilgrimmage to Mecca.