Study and Modeling of an Octo-Copter

In this book we are interested in studying and modeling an octo-copter. Knowing the weight we have chosen the multi-copter which is an octo-copter as well as the necessary components. Then considering the important interest of the thrust in the construction of the octo-copter we have designed a test bench able to measure this force basing on a propeller mounted on a brushless motor. Also we have made a simulation using CFD code. Initially based on the comparison with anterior results we have found the optimal model. Then we have applied this model to our type of propeller and we have validated it with our experiments. In the last part we have varied the length of the arm of the octo-copter to found the optimal length via the aerodynamic simulation and to propose a new design of the whole frame.