飞机结构数字孪生关键建模仿真技术

doi:10.7527/S1000-6893.2020.23981

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飞机结构数字孪生关键建模仿真技术

董雷霆^1,2, 周轩¹, 赵福斌¹, 贺双新¹, 卢志远¹, 冯建民³

1. 北京航空航天大学航空科学与工程学院, 北京 100083;
2. 先进无人飞行器北京高校高精尖学科中心, 北京 100083;
3. 航空工业飞机强度研究所全尺寸飞机结构静力/疲劳航空科技重点试验室, 西安 710065

收稿日期:2020-03-16 修回日期:2020-04-17 发布日期:2020-06-12
通讯作者: 董雷霆 E-mail:ltdong@buaa.edu.cn
基金资助:
先进无人飞行器北京高校高精尖学科基地种子基金（ADBUAS-2019-SP-05）

Key technologies for modeling and simulation of airframe digital twin

DONG Leiting^1,2, ZHOU Xuan¹, ZHAO Fubin¹, HE Shuangxin¹, LU Zhiyuan¹, FENG Jianmin³

1. School of Aeronautic Science and Engineering, Beihang University, Beijing 100083, China;
2. Beijing Advanced Discipline Center for Unmanned Aircraft System, Beijing 100083, China;
3. Key Laboratory of static and fatigue test of full scale aircraft, AVIC Aircraft Strength Research Institute, Xi'an 710065, China

Received:2020-03-16 Revised:2020-04-17 Published:2020-06-12
Supported by:
Seed Foundation of Beijing Advanced Discipline Center for Unmanned Aircraft System (ADBUAS-2019-SP-05)

摘要/Abstract

摘要： 飞机结构安全性设计思想经历了从静强度设计、安全寿命设计、损伤容限与耐久性设计到单机追踪的演变，未来有进一步向结构数字孪生的方向发展的趋势。飞机结构数字孪生是数字线程驱动的，多学科、多物理、多尺度、多保真度、多概率的模拟仿真系统，采用在线传感器监测、离线地面检查、飞机运行历史等多源数据，反映并预测对应飞机结构实体在全寿命周期内的行为和性能，有望革新现有的飞机结构使用和维护模式。面向疲劳寿命管理，提出飞机结构数字孪生的5项关键建模仿真技术，分别是载荷和损伤的数据获取技术、多尺度建模和力学分析技术、含裂纹复杂结构的精确高效仿真技术、基于降阶的数字孪生高效建模技术和考虑不确定性与多源异构数据的剩余寿命评估技术，并详细探讨这五项关键技术的研究现状与发展方向，为飞机结构数字孪生的系统研究与工程应用提供参考。

关键词: 数字孪生, 结构安全性, 疲劳断裂, 降阶模型, 不确定性

Abstract: The design philosophy for airframe safety has experienced evolution from static strength, safety life, damage tolerance and durability, to individual aircraft tracking, with a trend towards the airframe digital twin in the future. The airframe twin driven by the digital thread is a multidisciplinary, multi-physical, multi-scale, multi-fidelity, and multi-uncertainty virtual simulation system. It uses multi-source data such as online sensor monitoring, offline ground inspection, and aircraft operation history to reflect and predict the behavior and performance of the corresponding airframe physical entity during the entire lifespan. It is expected to reform the existing paradigm of airframe usage and maintenance. Focusing on fatigue life management, this study proposes five key modeling and simulation technologies, which are (a) acquisition of load and damage data, (b) multi-scale mechanical modeling of airframes, (c) high-performance simulation of damage development, (d) efficient digital twin construction based on Reduced Order Modeling (ROM), (e) Remaining Useful Life (RUL) assessment considering multi-source uncertainty and heterogeneous data. This article discusses the state of the art of the proposed five key technologies as well as future research directions, providing reference for the systematic study and engineering applications of the airframe digital twin.

Key words: digital twin, structural safety, fatigue and fracture, Reduced Order Model (ROM), uncertainty

中图分类号:

董雷霆, 周轩, 赵福斌, 贺双新, 卢志远, 冯建民. 飞机结构数字孪生关键建模仿真技术[J]. 航空学报, 2021, 42(3): 23981-023981.

DONG Leiting, ZHOU Xuan, ZHAO Fubin, HE Shuangxin, LU Zhiyuan, FENG Jianmin. Key technologies for modeling and simulation of airframe digital twin[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(3): 23981-023981.

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