Body parameter measurement method, device, equipment, storage medium and program product

CN122166323APending Publication Date: 2026-06-09SF AIRLINES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SF AIRLINES CO LTD
Filing Date
2024-12-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In the existing process of repairing and modifying civil aircraft structures, obtaining local fuselage physical parameters requires destructive measurements, which leads to structural damage and high costs.

Method used

By conducting flight tests and ground tests, target flight test data and target ground test data of the target area of ​​the aircraft are obtained. Relevant parameters are measured using a fiber optic grating payload acquisition system, airborne inertial navigation and airborne digital flight data acquisition unit. Combined with the airframe physical parameter calculation equation, local airframe physical parameters are determined.

Benefits of technology

Accurate measurement of local fuselage physical parameters without damaging the fuselage structure of civil aircraft reduces acquisition costs.

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Abstract

This application provides a method, apparatus, device, storage medium, and program product for measuring fuselage parameters, belonging to the field of aviation technology. The method includes: performing a flight test to obtain target flight test data for a target area of ​​the aircraft, the flight test data including the aircraft's vertical acceleration, fuselage angular acceleration about the pitch axis, longitudinal strain variation, and circumferential strain variation; performing a ground test to obtain target ground test data for the target area, the ground test data including the coefficients of pressure circumferential stress versus pressure, pressure longitudinal stress versus pressure, and bending longitudinal stress versus bending moment; and determining local fuselage physical parameters for the target area based on the target flight test data and the target ground test data, the local fuselage physical parameters including local torque and moment of inertia. This application can reduce the cost of obtaining local fuselage physical parameters.
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