Structural Health Monitoring for Composite Airframe of Next Generation Space Vehicles
Airframe of a next generation space vehicle can be made of advanced composite structures covered with thermal protection systems(TPS).The structural complex and multiple failure modes are series challenges to structural health monitoring.This paper presents in-situ passive and active sensing techniques for detecting hidden damage in a representative airframe/TPS structure of next generation space vehicles.First,a passive sensing technique,utilizing distributed acoustic emission sensors,is presented for detecting multiple damage events and mapping their locations.Second,an active sensing technique,utilizing a network of built-in piezoelectric actuator/sensors and digital imaging process,is presented for visualizing and characterizing hidden damage in terms of location size Several possible thermal protection materials and configurations,their failure modes,and some tests results from the two active/passive sensing techniques are presented and compared.
Structural Health Monitoring Piezoelectric Actuator/Sensors Digital Imaging Thermal Protection Systems
Jeong-Beom Ihn Jerry Huang
Phantom Works,Boeing Company,Seattle,WA,USA Phantom Works,Boeing Company,Huntington Beach,CA,USA
国际会议
The World Forum on Smart Materials and Smart Structures Technology(SMSST07)(2007年世界智能材料与智能结构技术论坛)
重庆·南京
英文
2007-05-01（万方平台首次上网日期，不代表论文的发表时间）