MD2:C1
Cards (42)
- A heavy wheel attached to a rotating shaft to smooth the transfer of power from an engine to a machine
- Acts as an energy reservoir, which stores energy during the period when the supply of energy is more than the requirement and releases energy during the period when the requirement is more than the supply.
- A mech'l device that uses conservation of angular momentum to store rotational energy
- A form of KE that is proportional to the product of its moment of inertia and the square of its rotational speed.
- Common Uses of Flywheels
- Types of Keys
- The diameter of the shaft should be _____ enough to prevent from failure due to the torque on it.
- It can be designed as specified in Mech'l Engineering Handbooks or any acceptable standards.
- Is solid and sits outside the flywheel.
- A part of the engine that turns and supplies power to the alternator.
- The flywheel consists of two-phase springs bent in parallel. The outer arc is adjusted to raise the spring when the engine is running. The soft outer bow spring is only used to improve the unsafe resonance frequency range.
- It is consists of many planet gears that are attached to a flywheel holder. When the flywheel mount is screw actuated and rotates, the engagement with the outer ring gear creates a compound motion made up of each planet gear revolution and rotation.
- _______ only serves to balance the weight. The imbalances or parasitic radial forces introduced by the motor or generator unit must be compensated by ______.
- Attached to the outside diameter of the flywheel. The fixation on the flywheel usually done with the help of interference fit, which is created by heating it (the unknown). So the thermal expansion allows it to be placed around the flywheel.
- It is placed in the flywheel to support two-phase bent springs and other components of the flywheel.
- Preferably have a convex, radial outer area which rests against the inner wall of the flywheel. In this area, they have preferably made to be slip-promoting and wear-resistant.
- Usually made of chrome that prevents dust from getting into the internal functions of the flywheel, causing it to run poorly.
- Function of Flywheel
- Because the pistons are offset from the center of the crankshaft oscillation and wobble occurs. This is also because each piston fires at a different angle. The function of a flywheel in this situation is to suppress sideways movement. This is achieved by the heavyweight of the flywheel, reducing the vibration of the engine as a whole as the engine is stabilized and balanced on the bearings.
- The flywheel plays an additional role in _______. The teeth of the flywheel are attached to a starter motor. This starter is controlled with the car key so that when the vehicle is started, the starter turns the flywheel. As soon as the engine turns, the combustion effect keeps turning the engine. The BENDING GEARBOX in the started motor will retract to allow the flywheel to rotate freely.
- Another function of a flywheel which is achieved by stabilizing the movement of the engine. It also smoothes the engine speed and reduces wear on drive components. The flywheel also limits wear between the transmission shaft and the drive shaft. These two are attached with a universal joint.
- The crankshaft converts the piston movement into a jerky rotary movement when the force is generated, the speed of the crankshaft is constant and the engine runs smoothly. This is because the mass of the flywheel creates inertia that kept the engine crankshaft rotating between each piston firing.
- The weight of the flywheel determines the performance of an engine. The weight depends on the performance of the vehicles. Heavier flywheels allow the engine allow the engine to work under loads, which can cause the engine to stall. Large trucks or trailers work well with the heavier flywheels, while sports cars and some commercial vehicles make good use of lighter flywheels.
- Types of Flywheel
- A type of flywheel used in single flywheel threshing machine that is made of cast iron; is equipped with a flywheel hub and disc. When calculating the design of a ________, various parameters are used as inputs. This includes the dimensions of the flywheel. The resulting values are also calculated
- A type of flywheel that explodes at a much slower speed than a full disc wheel of the same weight and diameter. For minimal weight and high energy storage capacity, a flywheel can be formed from high-strength steel and manufactured as a centrally thick conical disc.
- A type of flywheel that has a speed between 30 000 rpm to 80 000 rpm. This can also be set up to 100 000 rpm. They have magnetic levitation bearings and are low-maintenance. Compared to a slow-running flywheel, these are light depending on the size/capacity. They are more expensive than a low-velocity flywheel.
- A type of flywheel that has a speed between 10 000 rpm. They are heavier and bulkier than the high-velocity flywheels. They require maintenance from time to time and do not use magnetic levitation bearings. Their installation requires a special concrete structure to support their weight. They are cheaper than high-speed flywheels.
- Flywheels are made of
- Flywheels are typically made of ______ and rotate on conventional bearings and are usually limited to a maximum speed of a few thousand rpm.
- High energy density flywheels can be made from ______ and use magnetic bearings, which allows them to rotate at speeds of up to _____.
- Machines in which flywheels are used
- Symptoms of a bad flywheel
- Occurs when you increase your gears.
- A bad flywheel could be one of those causes of this because of all the heat generated from friction in the clutch.
- The clutch pedal is experiencing lots of vibrations which will eventually get so bad that you will be able to feel them on the floor rather than just from the clutch pedal.As you drive your vehicle, the flywheel could end up with excessive runout overtime, which leaves the surface which feeling warped as you engage the clutch.
- If the teeth on the flywheel are damaged, the flywheel may have trouble engaging with the starter motor. This could make it difficult or impossible to start the vehicle.
- An aftermarket flywheel that is too light for the vehicle (or the driver) will make it much easier to stall the vehicle and could give a rough idle. On very light flywheels, you may even stall the vehicle simply by pushing the clutch in, just because the engine speed drops too fast for the ECU to add additional air and fuel to compensate.
- If a flywheel is unbalanced, it may vibrate the whole powertrain even while the clutch is engaged. If you recently replaced the clutch, the flywheel, or pressure plate, make sure you torqued all bolts to spec and applied thread locker if it was called for in the factory service manual. A flywheel that comes loose or disintegrates while driving is incredibly dangerous, as there is considerable amount of energy stored in the flywheel.
- Applications of Flywheels