of Products and services‚ they have mainly 8 business sectors‚ they are information technology and communications‚ engineering‚ Materials‚ Services‚ Energy‚ Consumer products‚ Chemicals. My project is on the India’s largest automobile company Tata Motors Ltd which comes under engineering sector of Tata Company. The purpose of Tata motors is to “Improve the quality of life Improve the quality of life of the communities we serve of the communities we serve through leadership in through leadership
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Tata’s Nano: A Small Car with Large Consumer Surplus? Ref. No.: ME0012 op y Tata’s Nano: A Small Car with Large Consumer Surplus? “Since‚ promise is a promise the standard dealer version will cost Rs 1 lakh‚”1 – Ratan Tata‚ Chairman‚ Tata Sons “We designed the Nano to offer a new form of transport to the people of India and maybe later‚ to the rest of the world.”2 – Ratan Tata‚ Chairman‚ Tata Sons “…if economists are to play their part in shaping the canons of economic policy
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TESLA Motors IPO June 2010 By: Brad Taylor Tesla Motors‚ Inc. was formed in 2003 to design and produce affordable EV’s (electric vehicle) and sell into the mainstream market place. The company is in the auto manufacturing industry and the consumer goods sector. To sustain its significant cash flow needs to support its heavy research and development spending and growing infrastructure needs (dealerships)‚ the company completed a public offering in June of 2010 where it sold 13.3 M shares
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Effects of curing condition of solution cast Nafion® membranes on PEMFC performance Korean J. Chem. Eng.26(3)‚ 679-684 (2009) Thickness of membrane ~ 50µm There are some disadvantages of the solution casting method that the cold cast films are generally mechanically weak‚ susceptible to crack formation and soluble in many polar solvents‚ especially in water at room temperature. Generally‚ the annealed films undergo morphological changes when heated above the glass transition temperature (Tg=109oC
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Chapter 1 kin 4315 1.The dynamic systems theory of motor control is able to account for the four characteristics of human movement through the process of: none of the above 2. The reflex theory of motor control cannot account for which characteristic of human movement uniqueness 3. Open-loop motor control relies on sensory feedback to guide the completion of the movement. False 4. One weakness of the reflex theory of motor control is that: it cannot explain how humans can perform unique
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A DC motor is a mechanically commutated electric motor powered from direct current (DC). The stator is stationary in space by definition and therefore so is its current. The current in the rotor is switched by the commutator to also be stationary in space. This is how the relative angle between the stator and rotor magnetic flux is maintained near 90 degrees‚ which generates the maximum torque. DC motors have a rotating armature winding but non-rotating armature magnetic field and a static field
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The speed of an asynchronous motor rotating field and thus its rotor speed depends on the number of pairs of poles in the stator field .the rotor speeds n are lower than the table values by the amount of the relevant slip speed ns. Motors are designed with up to three stators windings‚ which have different number of pairs of poles. They can therefore run at up to pairs of poles. They can be in any desired ratio to one another. A pole-changing switch is used to changing poles for the desires speed
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GROUP 4 JULY 26‚ 2013 EE 4101 ENGR. KENNETH F. FAJILAN Reluctance Motor Introduction A reluctance motor is a type of electric motor that induces non-permanent magnetic poles on the ferromagnetic rotor. Torque is generated through the phenomenon of magnetic reluctance. There are various types of reluctance motor: Synchronous reluctance Synchronous reluctance motors have an equal number of stator and rotor poles. The projections on the rotor are arranged to introduce internal flux “barriers“
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AC Motors vs DC Motors DC Motors Prof. Dr. M. Zahurul Haq zahurul@me.buet.ac.bd http://teacher.buet.ac.bd/zahurul/ Department of Mechanical Engineering Bangladesh University of Engineering & Technology e316.eps ME 475: Mechatronics AC motors are smaller in size‚ reliable and less costly. AC motors run at fixed speed set by the line frequency. Easy speed‚ torque & direction controls in DC motors. DC motors are generally operate at lower voltages which makes these easier to interface with control
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ELECTRIC MOTOR CONTROLS Once the proper motor is selected‚ understanding the many various control devices available and their uses and limitations becomes an important part related to reliable operation and protection of the motor and the personnel using the motor. Motor Control Topics There are four major motor control topics or categories to consider. Each of these has several subcategories and sometimes the subcategories overlap to some extent. Certain pieces of motor control equipment can accomplish
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