Accession Number:

ADA386506

Title:

Launcher Integrated Diagnostics Demonstration

Descriptive Note:

Corporate Author:

JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Report Date:

2000-01-01

Pagination or Media Count:

7.0

Abstract:

This paper presents the results to date of the Launcher Integrated Diagnostics Demonstration L-IDD, which involves the development of the Launcher Integrated Diagnostics System L-IDS that monitors components within the Trident II Launcher Subsystem and estimates their health. During Phase I of this project, possible monitoring areas were researched, and a prototype L-IDS was developed and tested. During Phase II, the prototype L-IDS was refined and installed on an SSBN for evaluation during deterrent patrol at sea. Launcher Subsystem equipment and the associated conditions originally investigated for monitoring included electrically actuated valves power consumption and noise, structural components relative position, propellants stabilizer levels, and water-filled containers internal corrosion. The prototype L-lDS system used the following sensors to monitor the associated equipment on the Launcher Subsystem voltage and current sensors, and accelerometers to monitor the electrically actuated valves i.e., variable energy ejector VISE valves and actuators optical IR sensors to monitor the relative position of the structural components i.e., umbilical shell and retractor stop bumper a solid- phase micro-extraction tool to collect propellant vapor and electrochemical sensors to monitor corrosion in a sealed container. Based on results from the prototype testing and further project resource consideration, the system being tested at sea is limited to monitoring VEE valves and actuator noise, and umbilical shell-to-retractor stop bumper relative position.

Subject Categories:

  • Guided Missile Launching and Basing Support

Distribution Statement:

APPROVED FOR PUBLIC RELEASE