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This article mainly introduces the Internet quad aircraft principle and composition of the example analysis, the article is very detailed, has a certain reference value, interested friends must read it!

The principle and composition of quad aircraft

Before we really start the production of four-axis aircraft (four-rotor aircraft), let's take a look at the basic composition and principle of the four-axis aircraft. In addition to understanding the necessary theoretical principles, it is also necessary to know the four parts of the quad vehicle-- rack, flight control, sensors and motor and electric adjustment. This article is selected from the practical course of quad aircraft University.

1.3.1 realization principle of four-axis aircraft

A quad is an aircraft that flies in the air. In order to get cheap power, it can only use aerodynamic power and cannot fly like a rocket. Therefore, the power and yaw action of the quad vehicle can only be realized by the action with the air. Figure 1.13 is a simplified mechanical diagram of a quad (there are two modes of a quad, one of which is cited here as an example). This article is selected from the University of quad practice course.

Figure 1.13 simplified mechanical diagram of quad vehicle

The sizes of F1, F2, F3 and F4 in figure 1.13 are determined by the speed of the oars. The stronger the rotational speed is, the smaller the rotational speed is and the smaller the force is, so that the forward, backward, steering (yaw) and rotation of the quad can be realized by controlling the changes of the four forces.

1.3.2 installation platform of quad aircraft-rack

In a quad, the frame (figure 1.14) is equivalent to the skeleton of the human body, and the frame determines the main structure of the aircraft. The rack is the basic platform of the aircraft, motor, electric adjustment and flight control board (flight controller) and other equipment should be installed on the rack. The main functions of the rack are as follows:

Figure 1.14 Rack

Q provides installation interface. These interfaces include screw holes for installing and fixing motors, electrically adjustable and flight control boards.

Q provides an overall stable and robust platform. A stable and solid platform is needed during the flight of the aircraft, so that the motor will not damage other equipment during rotation, and provide a stable platform for the sensor.

Q landing gear and other cushioning equipment. These can provide safe take-off and landing conditions for aircraft to avoid damage to other instruments.

Q ensure a sufficiently low quality (weight). In this way, more margin can be provided to other control devices.

Q provide the corresponding protection device. The protective devices here are used to protect the aircraft itself and operators who may come into contact with it. Because there will be a variety of unpredictable situations in the course of flight, certain protective measures can protect equipment and other personnel and reduce unnecessary losses.

The above is all the contents of the article "example Analysis of the principle and composition of quad aircraft in the Internet". Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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