Skip to main content

Introduction of Quad-copter Drone

 A quadcopter is also called a quadrotor helicopter or quadrotor. The quadcopters are classified as rotorcraft, as opposed to fixed-wing aircraft because their life is generated by a set of the rotor.

Quadcopters generally use two pairs of identical fixed pitched propellers; two clockwise (CW) and two counterclockwise (CCW). These use independent variation of the speed of each rotor to achieve control. By changing the speed of each rotor it is possible to specifically generate a desired total thrust; locate for the center of thrust both laterally and longitudinally, and to create a desired total torque, or turning force.

Fig.1 Quadcopter Drone

 

Quadcopters differ from conventional helicopters, which use rotors that can vary the pitch of their blades dynamically as they move around the rotor hub. In the early days of flight, quadcopters (then referred to either as 'quad rotors' or simply as 'helicopters') were seen as possible solutions to some of the persistent problems in vertical flight. Torque-induced control issues (as well as efficiency issues originating from the tail rotor, which generates no useful lift) can be eliminated by counter-rotation, and the relatively short blades are much easier to construct. Several manned designs appeared in the 1920s and 1930s. These vehicles were among the first successful heavier-than-air vertical takeoff and landing (VTOL) vehicles. However, early prototypes suffered from poor performance, and latter prototypes required too much pilot workload, due to poor stability augmentation and limited control authority.

In the late 2000s, advances in electronics allowed the production of cheap lightweight flight controllers, accelerometers (IMU), global positioning systems, and cameras. This resulted in the quadcopter configuration becoming popular for small unmanned aerial vehicles. With their small size and maneuverability, these quadcopters can be flown indoors as well as outdoors.

At a small size, quadcopters are cheaper and more durable than conventional helicopters due to their mechanical simplicity. Their smaller blades are also advantageous because they possess less kinetic energy, reducing their ability to cause damage. For small-scale quadcopters, this makes the vehicles safer for close interaction. It is also possible to fit quadcopters with guards that enclose the rotors, further reducing the potential for damage. However, as size increases, fixed propeller quadcopters develop disadvantages relative to conventional helicopters. Increasing blade size increases their momentum. This means that changes in blade speed take longer, which negatively impacts control. Helicopters do not experience this problem as increasing the size of the rotor disk does not significantly impact the ability to control blade pitch.

 

Source of Articles - Also visit -  Here

 

Labels:

Comments

Post a Comment

Popular posts from this blog

Components of Quad-copter Drone

  Frame : There are two possibilities when it comes to a frame for your drone . You can make it yourself or buy it in an online store, and for a wide choice of high-quality frames, we suggest checking out our article about the best drone frames. If you decide to build it yourself, the project is not that difficult, but you’ll need some engineering knowledge and knowledge of the materials you are going to use. For instance, you can use metal (something light), plastic, or even wood slats. If you opt for a wooden frame, you’ll need a wood board that is about 2.5 cm thick.   Motors : For an ordinary quad, you will need 4 motors in total, but an octocopter requires eight motors to fly. The recommendation is to use brushless motors – they are lighter on the battery and, unless you are an engineer who completely understands how a motor works, these pieces should be bought from a store.   ESCs or electronic speed control: T hese are also essential pieces of your drone a...
Post a Comment
Read more

Detail of Design, working and processes of Quad copter Drone

  STEP-BY-STEP INSTRUCTIONS There are different types of drones , but people find quadcopters to be more efficient, as they are easy to fly. So for this step-by-step guide, we have focused on showing you how to build a quadcopter with pieces that you can buy separately: STEP 1: MAKING THE FRAME No matter what your drone is going to be, it must have a frame. So, the first task is to make a frame. For this purpose, you can use different materials , such as metal, plastic, or wood. These materials will differ based on how sturdy you intend the drone to be. If you select wood for the frame, find a wood board that is longer than 60 cm and about 25-30 mm thick. Cut up this board in such a way as to get two laths which are 60cm long and 30mm wide. These two lengths are required to make the structure of your future quad. Fig. Materials of Quad Copter Drone   Crossing these two laths you’ll make the X frame. Also, you will need a wooden sheet to make and add a rectangular piece in...
Post a Comment
Read more