A Method for Estimating Hinge Moment Derivatives of Double Hinged Rudder Surfaces

Abstract

A method for estimating the hinge moment derivative of a double-hinge rudder surface, which relates to aircraft aerodynamic characteristic estimation technology, is used to estimate the hinge moment of a double-hinge rudder surface, and the single-hinge estimation method is used to separately calculate the hinge moment of the front rudder surface and the rear rudder surface along with the side slip angle or The derivative of the angle of attack and the derivative of the hinge moment with the rudder deflection angle; the compensation ratio parameter is assumed according to the characteristic profile parameters of the rear rudder surface, and the new hinge axis position is calculated; the new hinge axis position is moved backward to obtain the new compensation ratio parameter; Get the head correction difference of the rear rudder surface; calculate the deflection angle derivative of the front rudder surface and the deflection angle derivative of the rear rudder surface. The method for estimating the hinge moment derivative of the double-hinge rudder surface provided by the present invention can estimate the derivative of the hinge moment of the double-hinge rudder surface. .

Description

technical field [0001] The invention relates to an aircraft aerodynamic characteristic estimation technology, in particular to a method for estimating a hinge moment derivative of a double-hinge rudder surface. Background technique [0002] The existing methods for estimating the hinge moment of the aircraft rudder surface include "ESDU", "DATACOM", "Airplane Design", "Aircraft Design Manual", "Aerodynamic Engineering Calculation Manual", etc. However, the existing methods for estimating the hinge moment of the aircraft rudder surface The method system can only estimate the hinge moment of single-hinge rudder surface. Existing aircraft control surfaces, especially rudders, use double-hinge rudder surfaces on a large scale, and the original aircraft rudder surface hinge moment estimation method system cannot meet the needs of existing aircraft designs. [0003] Therefore, based on the deficiencies in the above-mentioned existing method system for estimating the hinge moment ...

AI Technical Summary

Problems solved by technology

[0002] The existing methods for estimating the hinge moments of aircraft rudder surfaces include "ESDU", DATACOM, "Airplane Design", "Aircraft Design Manual", "Aerodynamic Engineering Calculation Manual", etc. However, the existing methods for estimating the hinge moments of aircraft rudder surfaces The method system can only estimate the hinge moment of single-hinge rudder surface

Existing aircraft control surfaces, especially rudders, use double-hinge rudder surfaces on a large scale, and the original aircraft rudder surface hinge moment estimation method system cannot meet the needs of existing aircraft designs.

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