Multi-rotor unmanned aerial vehicles (UAVs) have been trending in between academics and professionals. It has a wide scope of use in industries like cargo transportation, measurement, mapping, video and photo shooting, search and rescue, agriculture, and construction. Despite its advantages in movement and control, it gives too little hover time. A great deal of quadrotor or multirotor propeller designs has a fixed-pitch propeller which is mechanically simple. In addition, it provides excellent maneuverability, survivability and controllability. Variable pitch propellers are used in numerous systems such as ships, airplanes, helicopters and recently quadrotor applications.
In this study, it is aimed to find the lift force generated on the rotor by changing the angles of the propeller at the constant speed and design a prototype with optimized PID with coefficients. A pre-model was tested to determine the generated lift force and accuracy of the PID. The results were then compared with our controller using PID coefficients.
The measurements of this experimental testing support the potential benefits of the variable-pitch propellers. The lift force created from test bench propellers, which is allowing for efficient generation of negative thrust, essentially increases the maximum rate of thrust change.
This research shows the difference between fixed and variable pitch angle applications with optimized PID.
Anahtar Kelimeler: Unmanned aerial vehicles (UAVs), variable pitch angle, PID, test bench
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