What are the inputs and outputs of a bike?
The input is what you put into a bicycle when you ride it. It is the pedalling force and the pedalling speed. In the process box in the middle is the bicycle. The chain drive of the bicycle changes the input pedalling force and pedalling speed into an output.
What is the output energy of a bicycle?
| Appliance | Input Energy | Output Energy |
|---|---|---|
| radio | chemical or electrical | sound |
| hair dryer | electrical | heat and moving energy |
| car moving | chemical from petrol | moving energy and heat |
| riding a bicycle | chemical from food | moving energy and heat |
What gears to use on a bike?
When you’re just getting comfortable on a bike, use only the rear cogs and the small or middle front chainring. This will allow you to get the hang of it before you shift into harder gears. If you’re not sure what gear you’re in, you can (carefully) look down.
What is the input movement in a belt drive?
In a Belt Drive the input and output shafts are always parallel. The input and output gears move in the same direction because the belt pulls both gear in the same direction unless the belt is twisted which will allow the gears to move in opposite directions.
What is the input movement in a cam and follower?
The input is always a gear called a cam which is shaped similar to a half moon. The gear moves in a circle therefore the movement type is Rotary. The output is a follower held up by the cam and in line with a track. The follower moves up and down in every time the input makes a full rotation.
How does a simple gear train work?
Gear trains are when two or more gears are joined together. In a simple gear train, the drive gear causes the driven gear to turn in the opposite direction. Smaller gears with fewer teeth turn faster than larger gears with more teeth. This difference in speed is called the gear ratio .
Which mechanism would be used to increase speed?
PLTW Mechanisms And Functions
| Mechanism Type | Increase Speed | |
|---|---|---|
| 1 | Bevel Gear | Yes |
| 2 | Belt Drive | Yes |
| 3 | Cam and Follower | |
| 4 | Chain Drive | Yes |
What is the output movement of a simple gear train with idler?
Simple Gear Train with Idler? Two meshed gears will rotate in opposite directions. An Idler Gear allows the drive and driven gears to rotate in the same direction.
Do the input and output shafts turn in the same direction in a universal joint?
Do the input and output shafts turn in the same direction? Yes, the two shafts do turn in the same direction.
What is the output movement in a universal joint?
A universal joint is a connection between two objects, typically shafts, that allows relative rotation in two axes. If the input shaft is rotating at a constant velocity, the output shaft’s velocity will oscillate.
Can you make the input shaft turn by turning the output shaft?
Is the flow of power reversible? (Can you make the input shaft turn by turning the output shaft?) Yes, the flow of power can be reversed. What is the direction of travel between the input and output gears? The direction of travel is between the input and output gears is the same due to the idler in between the gears.
Where are gear trains used?
Planetary gear train (PGT) has been widely used in the transmissions of helicopters, automobiles, wind turbine, aircraft engines, etc. The main advantages of this transmission are its high efficiency, its compactness, its large transmission ratio and its large power-to-weight ratio, etc.
What gear ratio has more torque?
A numerically higher axle ratio provides a mechanical advantage to send more of the engine’s available torque to the rear tires (and front tires, in a four-wheel drive vehicle), but you pay the price at the fuel pump. So, a truck with optional 3.73 gears will tow a heavier trailer than one with 3.55 or 3.21.