Structural Health Monitoring of Smart Composite Fuselage: A Building Block Approach

时间:6月1日 上午10:00-11:30

地点:电院5号楼214会议室

报告人:Prof. Zahra Sharif Khodaei (英国皇家航空学会会士,中国商飞外籍顾问)

报告题目:Structural Health Monitoring of Smart Composite Fuselage: A Building Block Approach

主持人:刘庆文老师

 

报告摘要:

Structural Health Monitoring (SHM) is a remote non-destructive inspection technique that enables instantaneous maintenance request when the system’s health fall below a predefined level of confidence. The concept of SHM is to continuously monitor the state of a structure with permanently installed sensors and allow for condition-based maintenance (CBM) where maintenance action is carried out only when a threat to the structures’ integrity is detected.

SHM has been recognized as an attractive solution for the life management of aircraft structures. The main objective of SHM uptake by aeronautical industry is to bring the maintenance from the fleet level to managing individual aircraft’s airworthiness and moving away from the scheduled based maintenance (SBM), which is the current practice. There are many advantages for the application of SHM to aircraft structures, such as its potential to result in higher reliability of damage detection in composites while reducing maintenance costs. However, there are many challenges for the uptake of SHM, mainly due to the complexities of aircraft structures and damage scenarios, as well as the wide range of in-service environmental and operational conditions. Due to the high safety and reliability requirements of aircraft, SHM techniques should demonstrate a high level of reliability required by the certification authorities.

In this talk, achievements but also challenges of application of SHM to a composite fuselage panel as part of the CleanSky2 core-partnership SHERLOC will be demonstrated. The SHM developments in SHERLOC has been included from the design phase of components, tailored to various manufacturing processes. Following the building block philosophy, the down selection and verification of various SHM technologies and methodologies have been demonstrated under the operational and environmental condition of a regional aircraft, demonstrating the survivability of the SHM components on board of the aircraft, as well as the reliability of the diagnosis. 

 

 

报告人简介:

Professor Zahra Sharif Khodaei is a Professor in Aerospace structural durability and health monitoring at the Department of Aeronautics, Imperial College London. She is the co-founder of the Structural Integrity and Health Monitoring (SI&HM) group in the department. Her main expertise is in the field of Structural Health Monitoring (SHM), both numerical and experimental research in passive (impact detection & classification) and active sensing (damage detection & characterization) of smart structures. She has developed different SHM systems using piezoelectric, fibre optic and novel printed sensors. She has developed SHM technologies and methodologies for diagnosis & prognosis of composite structures under environmental and operational conditions, within several collaborative projects involving UK industries and academia, EU projects ( SHERLOC CleanSky II, ?10M) and more recently ESA for space application. She is a member of the steering committee of CleanSky II and a Fellow of Royal Aeronautical society and Women’s Engineering Society. Her list of publications can be found here.