Design Evaluation And Evolution Of Multi Rotor UAV

Unmanned aerial vehicles(UAVs),especially civil UAV,have developed rapidly in recent years,they have very wide range of applicatons.Compared with the manned aerial vehicles,the utility model has the advantages of low cost,flexible flight,strong adaptability and low requirement of the flying field,etc.Now,the UAVs have a lot of different various styles,fixed wing UAV,multi rotors UAV,helicopter,tilting type UAV and UAV and so on,each has certain advantages and disadvantages,and each has different applications.Multi rotor UAV has the advantages of vertical take-off and landing and can hover,but flat flight speed is slow,short range;fixed wing UAV can fly fast,and has s long range.Thus the vertical take-off and landing(VTOL)aircraft is a perfect combination of the above,it has the advantages of vertical take-off and landing,high altitude and long range' flight.The main contents of this paper are as follows:1.This paper firstly introduces multi rotor and fixed wing at home and abroad,the development history,research background,advantages and disadvantages,applications and control method.And this paper aims at some existing problems and put forward the research method for the problems.2.Under the given weight,battery capacity,load,endurance time and other performance parameters of a eight rotor UAV,we use SolidWorks software design a eight rotor UAV and draw its three-dimensional map,and ultimately determine the size of the feature.3.In modern design method,the numerical analysis method is widely used to evaluate the mechanical structure,verify whether the structural damage occurs under the condition of loading.In this paper,the finite element method analysis of the structure of the eight rotor unmanned aerial vehicle(UAV)is carried out by using the finite element method analysis software ANSYS,and the damage of the structure of the eight rotor unmanned aerial vehicle(UAV)is verified under the condition of load hovering.4.The model of the composite UAV is analyzed and the mathematical model is established.And finally,the simulation control is studied by using MATLAB.