UNIT 2: DYNAMICS AND STABILITY

Question 1

INTRODUCTION

Answer 1

So, basically a drone (specially quadcopters) has two pairs of propellers (two in a
clockwise direction and another two in a anticlockwise direction).

The speed of each motor is individually controlled to control the movement of the drone.

The speed of each motor is individually controlled to control the movement of the drone.

Alternatively, we can say, in physics, the capability of rotating an object around a fixed
axis is known as torque. It is symbolized as (Tau). Mathematically, torque is the vector product
of force (F) and the distance (r) of the axis

Where is the angle between the force and the distance from the center of the axis. Thrust is
simply pushing something suddenly or with propulsive force.

In physics, thrust is defined as the forward force that impels it to go faster or keeps it going in the
intended direction.
Mathematically, thrust is the product of pressure (P) and area (A). So, we can say,
Thrust = P x A

Question 2

FORCES

Answer 2

We use a small control board to control the drone. The control board has a few sensors
that provide the necessary signals to move the propellers at the proper speed, and in the right
direction.

Inside the control board, there is a gyroscope and accelerometer that provide the
orientation information of the drone

The RC receiver gets a signal from the RC transmitter and sends it to the microcontroller
of the control board, and the ESCs connected to the microcontroller are then controlled to
provide the necessary speed