Flight simulation original state compound genetic balancing method

Abstract

The invention discloses a flight simulation original state compound genetic balancing method. The flight simulation original state compound genetic balancing method comprises the following steps of initializing an aircraft constant straight line flat flight kinetic model and a constraint equation; step 2, obtaining an initial elevator deflection angle, motor thrust, an aircraft attack angle and an aircraft pitch angle; step 3 enabling a formula balancing result to be served as an initial value of a genetic algorithm, executing a genetic optimization algorithm and obtaining an optimal elevator deflection angle, the motor thrust, the aircraft attack angle and the pitch angle; step four solving the optimal elevator deflection angel and the motor thrust according to a mixed genetic optimization algorithm, reasoning backward to solve the displacement of a steering column and a throttle lever, configuring the steering column and the throttle lever and assigning the obtained aircraft attack angle and the pitch angle to the aircraft kinetic simulation model.

Description

technical field [0001] The invention relates to an initial state trimming technology in aircraft simulation, in particular to a trimming technology when aircraft parameters are variable, in particular to a flight simulation initial trimming method combined with a traditional formula method and a genetic algorithm. Background technique [0002] As a low-cost technical means, flight simulation is widely used in many fields such as aircraft design and pilot training. Using flight simulation technology to study the motion laws of aircraft under specific conditions is of great significance to the design of aircraft, the design of control laws and the simulation of aircraft performance. When the flight simulation is initialized, it is necessary to trim the flight dynamics model to a specified state before adding control signals on this basis to complete various flight tasks. The initial trim process of the aircraft needs to set multiple state variables and control variables, whic...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low accuracy of the traditional formula trimming method in the flight simulation initialization process, and proposes a hybrid genetic trimming method combining the formula method and the genetic algorithm. First, the formula method is used to solve the trim point, and the obtained Approximate equilibrium state, and then use genetic algorithm for simulation optimization to obtain a more accurate equilibrium state, thereby improving the speed and accuracy of trimming

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