My knowledge about mechanisms

THE MECHANISM:

A mechanism is a device designed to transform input forces and movement into a desired set of output forces and the movement.

SIMPLE MACHINSES:
A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they can be defined as the simplest mechanisms that use mechanical advatage (also called leverage) to multiply force. Usually the term refers to the six classical simple machines which were defined by renaissance scientists:

1. The lever
2. The pulley
3. The wheel and axle 
4. The inclined plane 
5. The wadge
6. The screw

I use simple machines in my daily life when fore example i have to go up the steirs, another is when i have have to cut with scissor,when i go with bike,when i have to open the door, when i have to cut with a knife and also when i go to the toilet and i open the tap.

  

 





Transmission of movement.

Mechanism change input motion into output motion.
All mechanical systems have mechanisms which transform an imput motion into an output motion.
They're designed so you can gain an advantage from using them, they make something easier to do.
Some mechanism change one type of motion into another.
They are varius types of motion:

• Linear motion-  moving one way in a straight line.
• Recipocrating motion- moving backwards and forwards in a straight line.
• Ocillating motion- moving backwards and forwards in an arc, e.g a wheel.
• Rotary motion- moving in a circle, e.g a wheel

MECHANISM

A mechanism is a device designed to transform input forces and movement into a desired set of output forces and the movement. Mechanisms generally consist of moving components such as gears and gear trains, belt and chain drives, cam and follower mechanisms, and likages as well as friction devices such as brakes and clutches, and structural components such as the frame, fasteners, bearings, springs, lubricants and seals, as well as a variety of specialized machine elements such as splines, pins and keys.

• Pulleys: Pulleys are used to change the speed, direction of rotation, or turning force or torque.

A pulley system consists of two pulley wheels each on a shaft, connected by a belt. This transmits rotary motion and force from the input, or driver shaft, to the output, or driven shaft.

• Gears:Gears consist of toothed wheels fixed to shafts. The teeth interlock with each other, and as the first shaft (the driver shaft) rotates, the motion is transmitted to the second or driven shaft. The motion output at the driven shaft will be different from the motion input at the driver shaft - in place, speed, direction and other ways.

Cams:A cam is a shaped piece of metal or plastic fixed to a rotating shaft. A cam mechanism has three parts: cam, slide and follower.

There are varius types:

• Circular cam.
• Snail cam.
• Pear cam
• four-lobed-

-Uses of mechanisms in our daily life.
I use machanisms in my daily life for example when use the tipex (gears), also when i go with bike (pulleys)and when i go to sailing and i have to put the sail (cams).

Here i have my mind map:

https://bubbl.us/#040270957807310126


And i want to create a sailing boat that has 4 sails and is going to be very aerodinamic.