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Saturday, July 2, 2011

Toyota recalls more than 110,000 hybrid cars
 


                         Toyota said Wednesday it will recall more than 110,000 hybrid vehicles in the United States, Japan and Europe because of faulty transistors in electrical power control boards.
The US market is the most affected, with the Japaneseauto giant recalling 45,500 units of its Highlander Hybrid and 36,700 Lexus RX 400h vehicles due to "inadequate soldering".
Toyota said certain transistors could be damaged from heat caused by a large current flow during high-load driving due to the defect.
In most cases the vehicle will enter a fail-safe driving mode, resulting in reduced power in which the vehicle can still be driven for short distances. In the worst case the vehicle could stop, Toyota said.
Roughly 3,000 of the same vehicles are also being recalled in Canada, a Toyota spokeswoman told AFP. Toyota is also recalling 11,164 of the same vehicles in Japan for the same defect.
In Europe, the recall will cover roughly 15,000 vehicles, the spokeswoman said. Toyota said it is "working on" obtaining replacement parts and will notify owners when available.
The latest global recall is a another blow for the company struggling to restore its reputation as a quality automaker, having recalled millions of vehicles since 2009 over safety defects and paid US authorities nearly $50 million in penalties.
                           Toyota earlier this month also had to recall some 139,000 vehicles globally, including 106,000 first-generation Prius hybrid vehicles, because of a problem with the steering system.
Ratings agency Moody's on Tuesday said it had downgraded Toyota and its affiliates by one notch to Aa3, citing concerns for its profitability against a strong yen and materials costs.
It said the ratings remain on review for possible further downgrade.
Toyota had said it expected net profit in this fiscal year to drop 31 percent on-year to $3.5 billion on a strong yen and the effect on production of the March earthquake and tsunami.
The company expects to stage a recovery in the second half as supply problems caused by the earthquake fade

Top 10 best Mechanical Engineering Universities 2011

           Mechanical engineering is the mother of all engineering disciplines. Mass, motion, force, energy, design, and manufacturing – these comprises the world of mechanical engineering. It encompasses the research, design, development, construction and testing of tools, machines and other mechanical equipment. Education from a proper well recognized university, college or school of engineering is vital for all the mechanical engineers due to the highly technical nature of mechanical engineering. According to the ranking of mechanical engineering universities, the top 10 best universities or colleges for mechanical engineering in the year 2011 are MIT, Stanford university, UC Berkeley, University of Cambridge, California Institute of Technology (Caltech), Imperial College London, University of Tokyo, ETH Zurich (Swiss Federal Institute of Technology), University of Oxford and National University of Singapore (NUS).
1. MIT (Massachusetts Institute of Technology):
MechE, MIT (Massachusetts Institute of Technology) is perhaps the most renowned and the top best mechanical engineering university in the world, and is well known for its cutting edge ideas and philosophies on engineering education. When we talk about mechanical engineering then MIT is the best institute for it. Their mechanical engineering department offers three different undergraduate programs, all with specific occupational trajectories in mind and eight different graduate programs, including doctorate of science. MechE attracts and features an extraordinarily rich diversity and quantity of talented individuals, including 400 undergraduates, 500 graduate students and about 75 faculty members.
Website: meche.mit.edu
2. Stanford University:
California’s Stanford University is another high ranked among top 10 best mechanical engineering university in the world. Mechanical engineering at Stanford University is best known all over the world for its entrepreneurially oriented engineering achievements. Department of mechanical engineering at Stanford university offers degrees at bachelor’s, master’s and doctorate levels.
Website: me.stanford.edu
3. University of California, Berkeley (UCB) (UC Berkeley):
According to many reports and world rankings, UC Berkeley is another top mechanical engineering school in the world. In the world ranking of 2011, it stands at third position in the field of mechanical engineering. UCB offers undergraduate as well as graduate programs in the field, with specializations and more focuses in ocean engineering, mechatronics, energy and environment, manufacturing, bioengineering, computation and MEMS and NANO.
Website: me.berkeley.edu
4. University of Cambridge:
University of Cambridge is one of the best mechanical engineering institutes in the world. The University of Cambridge is one of the oldest universities in the world and one of the largest in the United Kingdom. Its reputation for outstanding academic achievement is known world-wide and reflects the intellectual achievement of its students, as well as the world-class original research carried out by the staff of the University and the Colleges. They aim at providing young mechanical engineers with all the analytical, design and computing skills that underpin modern engineering practice, while encouraging the creativity and problem-solving skills that are so important to a good mechanical engineer.
Website: eng.cam.ac.uk
5. California Institute of Technology (Caltech):
California Institute of Technology (caltech) is well known best mechanical engineering university. Mechanical Engineering at Caltech has a century-long record of excellence. It brings together three simple elements: exceptionally talented individuals; an emphasis on fundamentals principles of thermal sciences, fluid and solid mechanics, and mechanical systems; and an atmosphere that inspires one to address the critical technological challenges of the day. their particular interests evolve with time, but their core mission of training the leaders of tomorrow and conducting fundamental research to address major technological roadblocks remains constant. Today, you will find students and faculty working on nanostructured fuel cells, laboratory earthquakes, active ferroelectric materials and devices, neural prosthetics, debris flows, response of structures against accidental explosion, quantum mechanical origins of the strength of materials and genetic algorithms for design.
Website: me.caltech.edu
6. Imperial College London:
Another best college for mechanical engineering in the world is Imperial College London. It remains in the list of top ten mechanical engineering colleges of the world since many years. The Department of Mechanical Engineering at Imperial College London is one of the largest and most advanced departments in mechanical engineering in the UK and across the world. They were the top-rated Department of Mechanical Engineering in the recent Research Assessment Exercise 2008, held by the UK Government. The overall mission of the Department is to deliver world-class scholarship, education and research in Mechanical Engineering, with particular regard to their application in industry, healthcare and commerce. Imperial college offers mechanical degrees at undergraduate, graduate and doctorate levels.
Website: imperial.ac.uk/mechanicalengineering
7. University of Tokyo:
University of Tokyo has a long history of providing best mechanical engineering degrees hence producing highly outstanding and technical mechanical engineers in the world. University of Tokyo offers mechanical engineering degrees at undergraduate as well as graduate level. University of Tokyo is the best engineering university in a country like Japan which is considered to be heart of technology all over the world. Mechanical engineers in Japan are considered to be the best technical innovators. So getting admission in University of Tokyo is like a dream come true for every student.
Website: mech.t.u-tokyo.ac.jp/english
8. Zurich (Swiss Federal Institute of Technology):
Zurich (Swiss Federal Institute of Technology) has one of the best Department of Mechanical and Process Engineering. They offer best engineering degrees well recognized all over the world. The Department of Mechanical and Process Engineering educates students for excellence and leadership in science and industry through cutting edge research on an international platform to face the challenges of the Swiss and global society and economy by engineering innovation in its technology fields. Their vision is to Reach and maintain excellence and leadership in fulfilling its mission as recognized (e.g. among the top five departments worldwide) by students, industry, peers and the board of ETH Zurich.
Website: mavt.ethz.ch
9. University of Oxford:
Oxford is the oldest university in the English-speaking world and lays claim to nine centuries of continuous existence. As an internationally renowned centre for teaching and research, Oxford attracts students and scholars from across the globe, with almost a quarter of our students from overseas. More than 130 nationalities are represented among a student population of over 18,000. University of oxford produces world’s best mechanical engineers who are well appreciated and well recognized in all of the industries worldwide. So University of oxford is one of the best mechanical engineering university in the world.
Website: eng.ox.ac.uk
10. National University of Singapore (NUS):
Acknowledged as one of the finest universities in the world, National University of Singapore (NUS) is a comprehensive university offering a broad-based curriculum underscored by multi-disciplinary courses and cross-faculty enrichment. Department of mechanical engineering at National University of Singapore is known to be one of the best in the world. It remains in top ten best mechanical engineering colleges of the world since a long time. Besides undergraduate, a graduate and doctorate degree, NUS also offers mechanical engineering internships for mechanical engineers during summer vacations. These are research based internships for national as well as international students.
Website: me.nus.edu.sg

Friday, July 1, 2011

Animation Of Mechanical Parts


Lobe Pump Animation


External Gear Pump - Animation


Internal Gear Pump - Animation


Rotary Engine

Also called as Wankel engine is a type of internal combustion engine has a unique design that converts pressure into rotating motion instead of reciprocating pistons


Torpedo-Boat destroyer System

This system is used to destroy fleet in naval military operations

Constant Velocity Joint

This mechanism is used in the front wheel drive cars

Manual Transmission Mechanism

The mechanism also called as “stick shift” is used in cars to change gears mannually.
 Change over of gears between 1st, 2nd, 3rd, 4th and reverse.

Maltese Cross Mechanism

This type of mechanism is used in clocks to power the second hand movement

Sewing Machine




Steam engine Principle

Steam engine once used in locomotives was based on the reciprocating principle

Radial Engines

Radial engines are used in aircrafts having propeller connected to the shaft delivering power in order to produce thrust