提高存档数据疲劳损伤计算的准确性

Q4 Engineering

Fatigue of Aircraft Structures Pub Date : 2019-12-01 DOI:10.2478/fas-2019-0011

A. Leski

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引用次数: 0

摘要

摘要历史运行使用数据为疲劳损伤估计提供了依据。二十多年前，传感器和记录仪的质量比现在要低。由于nz级测量和记录的分辨率不足，导致疲劳损伤计算出现一些误差。本文提出了一种提高存档数据疲劳损伤计算精度的方法。该方法利用了飞机累积周期的典型分布。在计算中对具有代表性的nz值进行小的修正，可以减少疲劳损伤评估的误差。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Improving the Accuracy of Fatigue Damage Calculations for Archived Data

Abstract Historical operational usage data give a ground for fatigue damage estimation. Quality of sensors and recorders two or more decades ago were lower then modern one. Lack of resolution in nz-level measurement and recording leads to some errors in fatigue damage calculations. In this paper author propose a method to improve the accuracy of fatigue damage calculations for archived data. The method takes advantage of typical distribution of accumulated cycles for aircrafts. Small correction in representative nz value taken in calculations can reduce the error in fatigue damage assessment.

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来源期刊

Fatigue of Aircraft Structures Engineering-Safety, Risk, Reliability and Quality

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The publication focuses on problems of aeronautical fatigue and structural integrity. The preferred topics include: full-scale fatigue testing of aircraft and aircraft structural components, fatigue of materials and structures, advanced materials and innovative structural concepts, damage tolerant design of aircraft structure, life extension and management of ageing fleets, structural health monitoring and loads, fatigue crack growth and life prediction methods, NDT inspections, airworthiness considerations.