New results concerning structural health monitoring technology qualification for transfer to space vehicles

2017 ◽  
Vol 24 (10) ◽  
pp. e1992 ◽  
Author(s):  
Daniela Enciu ◽  
Ioan Ursu ◽  
Adrian Toader
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Space Vehicles ◽  
Monitoring Technology ◽  
Structural Health

Computational Setup of Structural Health Monitoring for Real-Time Thermal Verification

2011 ◽  
Author(s):  
Derek Doyle ◽  
Whitney Reynolds ◽  
Brandon Arritt ◽  
Brenton Taft
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Structural Changes ◽  
Space Vehicles ◽  
Lap Joint ◽  
Active Sensors ◽  
Structural Health ◽  
Piezoelectric Wafer Active Sensors ◽  
Piezoelectric Wafer ◽  
Inspection Techniques

Research at the AFRL Space Vehicles Directorate is being conducted to reduce schedule times for assembly, integration, and test, to make satellite-based capabilities more responsive to user needs. Structural Health Monitoring has been pursued as a means for validating workmanship and has been proven on PnPSat-1. Embedded ultrasonic piezoelectric wafer active sensors (PWAS) have been utilized with local and global inspection techniques, developed both in house and by collaborating universities, to detect structural changes that may occur during assembly, integration, and test. Specific attention has focused on interface qualification. It is now reasonable to believe that evaluation of interfaces through the use of such sensors can also be used to indirectly qualify the structure thermally and that tedious thermal-vacuum testing may be truncated or eliminated altogether. This paper focuses on the computational development of extracting thermal properties from ultrasonic transmission records. Methods are validated on simple bolted lap-joint cantilever beams.

Applications of structural health monitoring technology in Asia

2016 ◽  
Vol 16 (3) ◽  
pp. 324-346 ◽  
Author(s):  
Venu Gopal Madhav Annamdas ◽  
Suresh Bhalla ◽  
Chee Kiong Soh
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
International Workshop ◽  
Monitoring Technology ◽  
Underdeveloped Countries ◽  
Structural Health ◽  
Civil Infrastructures ◽  
Land Mass ◽  
Self Powered ◽  
Technological University

Asia is the largest and most populous continent in the world with over 45 million square kilometers of land mass and 4.5 billion people. Asia is characterized by numerous densely populated cities. Structural health monitoring is a non-issue for the underdeveloped countries where basic amenities of survival are more important. However, structural health monitoring is crucial for the developing countries, especially those with densely populated cities like Singapore, Mumbai, and Hong Kong, where any infrastructural failure could be devastating to their society and economy. Structural health monitoring of mechanical and aerospace structures is mostly similar worldwide, but of civil infrastructures could vary due to socio-economic, cultural, geographical, and governmental reasons across countries, and even across states within the same country. This article, which is an enhancement to the keynote paper of the International Workshop on Structural Health Monitoring (IWSHM 2015, Stanford University, USA), presents some of the better known structural health monitoring studies of key civil infrastructures in a few Asian countries. In addition, the authors’ research and applications of structural health monitoring technology carried out at the Nanyang Technological University for civil infrastructures in Singapore are presented. At the end, the authors also discuss recent work on energy harvesting using piezoelectric transducers as an alternative to wired structural health monitoring for automated and self-powered structural health monitoring.

Structural Health Monitoring of Large-Section Tunnel of Jingxiong High-Speed Railway Based on Fiber Bragg Grating Monitoring Technology

2020 ◽  
Vol 57 (21) ◽  
pp. 210603
Author(s):  
吴静红 Wu Jinghong ◽  
叶少敏 Ye Shaomin ◽  
张继清 Zhang Jiqing ◽  
赵青 Zhao Qing ◽  
张文轩 Zhang Wenxuan
Keyword(s):  
Structural Health Monitoring ◽  
Fiber Bragg Grating ◽  
Health Monitoring ◽  
High Speed ◽  
Bragg Grating ◽  
Large Section ◽  
Monitoring Technology ◽  
High Speed Railway ◽  
Structural Health
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