24 August 2009 Advanced active health monitoring system of liquid rocket engines
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Proceedings Volume 7375, ICEM 2008: International Conference on Experimental Mechanics 2008; 737506 (2009); doi: 10.1117/12.839004
Event: International Conference on Experimental Mechanics 2008 and Seventh Asian Conference on Experimental Mechanics, 2008, Nanjing, China
Abstract
An advanced SMART TAPE system has been developed for real-time in-situ monitoring and long term tracking of structural integrity of pressure vessels in liquid rocket engines. The practical implementation of the structural health monitoring (SHM) system including distributed sensor network, portable diagnostic hardware and dedicated data analysis software is addressed based on the harsh operating environment. Extensive tests were conducted on a simulated large booster LOX-H2 engine propellant duct to evaluate the survivability and functionality of the system under the operating conditions of typical liquid rocket engines such as cryogenic temperature, vibration loads. The test results demonstrated that the developed SHM system could survive the combined cryogenic temperature and vibration environments and effectively detect cracks as small as 2 mm.
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Xinlin P. Qing, Zhanjun Wu, Shawn Beard, Fu-Kuo Chang, "Advanced active health monitoring system of liquid rocket engines", Proc. SPIE 7375, ICEM 2008: International Conference on Experimental Mechanics 2008, 737506 (24 August 2009); doi: 10.1117/12.839004; https://doi.org/10.1117/12.839004
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KEYWORDS
Sensors

Rockets

Liquids

Structural health monitoring

Cryogenics

Diagnostics

Sensor networks

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