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Flight load spectrum compilation method

A flight load and load technology, applied in the aerospace field, can solve the problems of high technical threshold, difficult to implement, fatigue durability design and verification, etc., to achieve the effect of low cost, easy implementation and lower threshold

Pending Publication Date: 2021-11-05
LIAONING GENERAL AVIATION ACAD
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  • Application Information

AI Technical Summary

Problems solved by technology

The load spectrum preparation method currently used is very complicated, the technical threshold is high, and it is not easy to implement, making it impossible to effectively carry out the design and verification of damage tolerance and fatigue durability of aircraft

Method used

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Embodiment Construction

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

[0029] A kind of flight load spectrum preparation method proposed by the present invention, see figure 1 , including the following steps:

[0030] Step S1: Aircraft usage analysis; the specific process is as follows:

[0031] (1.1) Analyze the overall use of the aircraft to determine the typical flight conditions and corresponding flight time;

[0032] Taking a light electric aircraft as an example, the typical flight conditions of the aircraft are as follows:

[0033] Typical flight situation 1: a flig...

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Abstract

The invention relates to a flight load spectrum compilation method. The method comprises the following steps: aircraft use condition analysis, aircraft load distribution calculation, gravity center overload data compilation, load spectrum export and the like. The method provided by the invention retains the basic principle of load spectrum compilation, reduces the threshold of load spectrum compilation, does not need a flight test, does not need the fatigue performance of an airframe material, and is low in cost and easy to implement.

Description

technical field [0001] The invention relates to the field of aerospace technology, in particular to a flight load spectrum preparation method. Background technique [0002] The damage tolerance and fatigue durability of the aircraft are not only a kind of performance, but also determine the maintenance cost of the aircraft. The damage tolerance and fatigue durability design of an aircraft must first obtain the load spectrum, and the flight load spectrum is an abstract reflection of the most important use of the aircraft. The current load spectrum preparation method is very complicated, the technical threshold is high, and it is not easy to implement, which makes it impossible to effectively carry out the design and verification of damage tolerance and fatigue durability of aircraft. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a flight load spectrum preparation method, which is easy to implement and ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F119/02
CPCG06F30/15G06F2119/02Y02T90/00
Inventor 马宏图李东辉代桂成郭义林邓立东
Owner LIAONING GENERAL AVIATION ACAD
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