* A snowmachine clutch actually consists of two separate clutches connected together by a rubber belt.
o The primary clutch is connected to the engine's crankshaft
o The secondary clutch is mounted on the end of the jackshaft (which connects to the drive shaft via a chain and gears).
* The primary purpose of the clutch is to smoothly transmit power from the engine to the jackshaft and to remove the connection when the engine is idling so that the machine is not always rolling.
* This type of system is also referred to as a continuously variable transmission. It is called this because as the engine speed increases the final drive ratio increases. That is, the difference between the engine speed and track speed decreases. It is equivalent to an automatic transmission on a car with an infinite number of gears that you never felt shift. Let's take a look at how this "infinite gearing" process works:
1. At idle the primary clutch just spins and does not "grab" onto the belt. As engine RPM (revolutions per minute) increases to engagement speed (the RPM where the snowmachine starts moving), the primary clutch begins to pull together and start squeezing the belt.
2. Now the belt is turning. This makes the secondary clutch turn, which causes the track to turn and the snowmachine to move forward.
3. As engine speed increases above engagement, the primary clutch squeezes together some more and pushes the belt so that it moves to a larger radius on the primary. Because the two clutches rotate about fixed points, the belt gets pulled into the secondary, spreading it farther apart and moving the belt to a smaller radius.
* Note that the primary clutch (on the left) never stops spinning, but the secondary (right) does stop spinning at idle speeds.
* In case you are curious, the engine rpm got up to about 7000 rpm and the track speed got up to about 60 mph or more during this clip. I supported the track with a stand and ran the throttle while an observer ran the camera.
Whether zipping along a winding trail, flying through the open flats, or powering up a steep hill snowmachines and the rider need to use physics to stay in control of the machine and themselves. The main compenents are the track, engine, skis and riding.
It is what makes the wheel spin instead of just to slide on the ground. If there were to be no friction such as ice the wheels would not spin and the whole car would just slide on the ice. With all the friction the car could not move at all. With the right amount of friction which we had to apply to the car the wheels will move and the car will go at a fast constant speed. This way we used friction in the right amount and it helped our mouse trap car go the distance and meet the requirement of one set of free spinning wheels. This is how friction is used in the mouse trap
Snowmobiling in today’s world is far more exciting and dangerous than it used to be in the 20th century. There are many types of snowmobiles and different capabilities for every make, model, and year. Every single snowmobile is different in its own way. Many snowmobiles have evolved and developed into amazing machines that are a great source of entertainment.
The experiment test-bed is composed of a DC motor, an engine, a chain drive, a shaft and other accessorial components. The DC motor is used to drive the engine shaft and its speed can be up to 1450 r/min.
The basic trimmer works by the engine driving a multi-bearing supported hardened steel shaft housed in an aluminium tube through a centrifugal clutch this shaft is connected to a “head” that holds a nylon line that spun at high revolutions per minute (RPM). This nylon line then cuts the grass by hitting the blades of grass at high speed, this cause the grass to be severed at the point of impact. Thus trimming the grass.
Specifically, on a standard five speed, the gears are as follows: Neutral is located in the middle of the panel. From neutral, gears must be changed accordingly. First gear is found to the far upper left, and is used to get the car moving from a stopped position. Down left is second gear, used for speeds up to twenty-five miles per hour. Third gear is located upper middle of the panel, used for speeds from about twenty-five to forty miles per hour. Fourth gear is found at the lower middle and would be good for between forty and fifty miles per hour. Fifth gear is found to the far upper right, and is used for higher driving speeds such as on the freeway. Last but not least is reverse, which is to the far bottom right, used for backing up. These gears must be maneuvered the exact same way each time the automobile is driven.
Most motor vehicles today use an Internal Combustion Engine (ICE) to give them power to drive down the road; ICEs are a form of a heat engine. Gasoline is burned to push a piston, which in return forces the car down the road. As the gas in the cylinder is ignited and expanded it forces the piston down the shaft. The force is carried through piston, which is connected to a crankshaft. The force moves through the transmission, down the driveshaft, and out the tires. The Otto Cycle is used to turn as much heat into the driving force as possible.
The exact workings of different brushless DC motors depend on the type of timing device used. This example uses a Reed switch.
Furthermore, the mechanism of the machine offered a different interpretation of the working condition. At first the machine operated smoothly and flawlessly. It works according to the inventor’s words. Brian Eggert described the operation of the Machine in his review as the following:
C. The cams and levers were not working so well, so they combined this idea with an electric-hydraulic-pneumatic approach.
Another type of wax is applied to the "kicker". The kicker is the area under the bindings. In other words the kicker is the area where most of the gravitational force of the skier is applied. Skiers apply a type of wax to the kicker that will cause the friction coefficient to increase. This allows skiers to be able to push off and ski uphill.
The circle of traction is a important racing concept with applications from physics. From newtons equation f=ma we know that the more force we apply to an o...
Gravity is the force that holds the skier to the ground and is also what pulls the skier down the hill. While gravity is acting straight down on the skier, a normal force is exerted on the skier that opposes gravity. As the skier skis down the hill, he or she will encounter an acceleration. This acceleration is due to gravity caused by a change in the skiers velocity. The mass of a skier is different for every person and is easily calculated by multiplying a skiers weight in kilograms by the gravitational force exerted by the earth. These forces and more are explained throughout the rest of this paper.
Fig. 6 © HowStuffWorks 2002. How Seatbelts Work [online]. Available at: http://static.ddmcdn.com/gif/seatbelt-spring.gif [Accessed 17th November 2012
delivering power instantly to the wheels. By providing high torque at low speeds, they give a feel