Search Results

The lack of visibility into high rate (100 Hz.) Improved Auxiliary Power Unit (IAPU) Shuttle data can potentially cause unnecessary launch delays. Current Shuttle day of launch procedures require strip chart identification of IAPU performance issues just prior to liftoff and during on-orbit operations. The current methods are outdated, require a high level of operator attention, and don't support continuous on-line analysis of the data. Depending on fatigue and training level, an operator might miss a significant feature or misinterpret a signature reading. The issue of how to accurately detect and predict space component performance in a streamlined operations environment through automated diagnostics is one of many issues that face the Shuttle Program and the designers of the next generation launch vehicles.

This paper recommends developing a suite of standard, operable fluid components and sensors to be used as building blocks for the current launch vehicle fleet and next generation launch systems. The paper provides a quick overview of Integrated Vehicle Health Management, provides rationale and the need for a family of operable components, provides a detailed case study using the Space Shuttle Orbiter Maneuvering System (OMS) Pressurization Subsystem Components, identifies robust component technology solutions, provides a status of the OMS component technology development, and recommends an expanded technology development program.