Unmanned aerial vehicle three freedom degree model building method

Abstract

The invention provides an unmanned aerial vehicle three freedom degree model building method. An unmanned aerial vehicle three freedom degree model is composed of an unmanned aerial vehicle data module and an aerial vehicle particle motion dynamics module, the aerial vehicle particle motion dynamics module can be used in the model-building processes of all the unmanned aerial vehicles in a repetitive mode, and therefore the workload of unmanned aerial vehicle three freedom degree model building is reduced. Complex functions such as aerodynamic computation, model resolving and calculating and auxiliary physical-quantity calculation are given to a computer through packaging of unmanned aerial vehicle three freedom degree model software. A user simply needs to set model input, and then can obtain the complete physical quantities of aerial vehicle three freedom degree motion, and the unmanned aerial vehicle three freedom degree model can be used simply and conveniently.

Description

technical field [0001] The invention belongs to the technical field of automatic control, and in particular relates to a three-degree-of-freedom model construction method of an unmanned aerial vehicle. Background technique [0002] Usually, the modeling of aircraft is to establish a six-degree-of-freedom model based on the motion of the rigid body of the aircraft, so as to realize the nonlinear simulation of the guidance and control of the aircraft. However, the trajectory and guidance design of the aircraft is aimed at the particle motion of the aircraft. The three-degree-of-freedom model of the aircraft’s particle motion ignores the angular motion and moment of the aircraft, and assumes that the aircraft is not affected by side force and sideslip angle. The nonlinear mathematical model of the three-degree-of-freedom particle motion of the manned aircraft not only simplifies the research on the motion of the aircraft, but also has important significance for the independent ...

AI Technical Summary

Problems solved by technology

[0003] 1. Since the aircraft aerodynamic database and aerodynamic calculations are different, modeling needs to repeat the above process, the process is complicated, and the modeling efficiency is low

[0004] 2. The aircraft particle motion equation, atmospheric density model, gravity field model, etc. are unchanged. Traditional modeling does not modularize these parts, which not only increases the workload of repeated modeling, but also is not simple and convenient to use.

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