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Types of Flexible Coupling – Bibby Resilient Couplings

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Types of Flexible Coupling – Bibby Resilient Couplings                  Named after its Inventor Dr. James Bibby in 1917, this coupling is still one of the most sought after flexible couplings for heavy shock applications. Let us now look at the constructional features of the coupling. 1.       The Coupling consists of two flanges or hubs specifically mounted on the drive and the driven shafts respectively. These hubs contain axial grooves cut on their circumference. 2.       The two couplings are joined or held together by means of a specially designed grid spring. 3.       The total assembly is enclosed in a casing or shell filled with grease for low-speed applications or, in high-speed applications with high viscosity oil. Now let’s look at the working aspect of the coupling and how it tends to reduce vibration and prevents the build-up of resonance in the system. a.) The specially designed spring is wound up through the grooves forming a series of resilient bridges throughout the p
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Technology of Hydrogen Fuelled Rotary Engine

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The technology of Hydrogen Fuelled Rotary Engine                This hydrogen engine takes advantage of the characteristics of Mazda’s unique rotary engine and maintains a natural driving feeling unique to internal combustion engines. It also achieves excellent environmental performance with zero CO2 emissions.                Further, the hydrogen engine ensures performance and reliability equal to that of a gasoline engine. Since the gasoline version requires only a few design changes to allow it to operate on hydrogen, hydrogen-fueled rotary engine vehicles can be realized at low cost. In addition, because the dual-fuel system allows the engine to run on both hydrogen and gasoline, it is highly convenient for long-distance journeys and trips to areas with no hydrogen fuel supply. The technology of the RENESIS Hydrogen Rotary Engine:                The RENESIS hydrogen rotary engine employs direct injection, with electronically-controlled hydrogen gas injectors. This system draws in a
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Energy is Stored using a Flywheel

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How Energy is Stored using a Flywheel                Flywheel Energy Storage is a potential energy storage system of the future. They leave a smaller carbon footprint and are one of the most important upcoming technologies of the future in the field of mechanics. Energy Storage Using Flywheels What is Flywheel Energy Storage?                Flywheel Energy Storage is a technique in which energy in the system is stored for future use, just as batteries are used to store energy for future use today.                In batteries, initially, energy is stored by other electrical energy sources or energy is stored from a result of some chemical reaction.                Flywheel energy storage can be compared to the battery in the same way. The flywheel energy storage system uses electrical energy and stores it in the form of kinetic energy. When energy is required from the flywheel energy storage system, the kinetic energy in the system is transformed into electric energy and is provided as o
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Tire

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Tire The tire’s  INNERLINER  -- keeps air inside the tire. The  CASING  (or CARCASS) – the internal substructure of the tire. The tire’s  BEAD  -- assures an airtight fit with the wheel and efficient transfer of forces from the wheel to the carcass of the tire. BEAD FILLER  – reduces flex and aids in deflection. A Tire’s  BODY PLIES  – withstands the forces of the tire’s inflation pressure, provides the mechanical link from the from the wheel movement to the tread are and flexibility to supplement the vehicle’s suspension system. The  SIDEWALL  -- protects the side of the tire from road and curb attack from atmospheric degradation. A tire’s  BELTS  -- stabilize and strengthen the tread, allowing forces to be efficiently transferred to thetread area. Its  BELT EDGE INSULATION  – helps to reduce friction. The  TREAD  -- provides the frictional coupling to the road surface to generate traction and steering Forces. Ribs  are a pattern that includes grooves around the tire in the direction
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Electromagnetic Brake

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Electromagnetic Brake                Electromagnetic brakes are the brakes working on the electric power & magnetic power. The works on the principle of electromagnetism. These are totally frictionless. Due to this they are more durable & have a longer life span. Less maintenance is there. These brakes are an excellent replacement on the convectional brakes due to their many advantages. The reason for implementing this brake in automobiles is to reduce wear in brakes as it frictionless. Therefore there will also be no heat loss. It can be used in heavy vehicles as well as in light vehicles.                The electromagnetic brakes are much effective than conventional brakes & the time taken for the application of brakes are also smaller. There is very few need for lubrication. Electromagnetic brakes give much better performance with less cost which is today’s need. There are also many more advantages of Electromagnetic brakes. That’s why electromagnetic brakes are an excel
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What Is Nvh ???

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What Is Nvh ? Noise:                Noise is defined as an unpleasant or unexpected sound created by a vibrating object. Vibration:                Vibration is defined as any objectionable repetitive motion of an object, back-and-forth or up-and-down. Harshness:                Harshness is defined as an aggressive suspension feel or lack of “give” in response to a single input. Noise and Vibration Theory:                A vibrating object normally produces sound, and that sound may be an annoying noise. In the case where a vibrating body is the direct source of noise (such as combustion causing the engine to vibrate), the vibrating body or source is easy to find. In other cases, the vibrating body may generate a small vibration only. This small vibration may cause a larger vibration or noise due to the vibrating body’s contact with other parts. When this happens, attention focuses on where the large vibration or noise occurs while the real source often escapes notice.                 A
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Safety Systems in Vehicles | Seat Belts | Air Bags

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Safety Systems in Vehicles | Seat Belts | Air Bags Seat belts                The function of the seat belts is to restrain the occupants of a vehicle in their seats when the vehicle hits an obstacle:                Three-point seat belt: In motoring history, this is the single most significant advance. All credit goes to Volvo’s Nils Bolin for devising it and to Volvo for introducing it in 1959. The three-pointer afforded unrivaled restraint. Its use was a quick, easy one-handed operation. Many improvements have been made to the webbing, mountings, latches, and inertia reels and belts have got smarter in relating to accident severity and occupant weight. In the present day vehicles, seat belts have become mandatory for the driver and front passenger. Some vehicles have seat belts for rear passengers also.                Seat belt pre-tensioner: A spring-loaded or explosive device that reacts to a severe frontal impact by automatically snugging the seat belt tight for fully effective re
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