Smart Structures for Rocket Propulsion Systems
Abstract
Solid and liquid propellant rocket propulsion systems are weigh- and performance - driven machines whose components experience extreme environments. However, the structural integrity of both types of propulsion systems is currently monitored through type testing, labor-intensive x-ray analysis, and other NDE techniques. Smart structures technologies have the potential not only to alleviate some of the maintenance burden of current rocket propulsion systems but also improve the capability of future systems. This paper discusses the rocket design parameters and operational environments driving the application of passive structural health monitoring systems to both liquid propellant engines, with complex rotating machinery and severe thermal environments, and solid rocket motors, with long required silo lives of highly filled, chemically active, viscoelastic propellant. The potential for application of active smart structures technology to rocket systems will also be discussed including the control of solid propellant to permit throttling of solid motors and control of thermal shrinkage, vibration suppression, and improved creep resistance of rotating components and subassemblies for liquid rocket engines. While the rocket manufacturers are not currently developing smart structures technology for propulsion applications, the potential improvements in increased systems reliability, longer operational lifetimes, reduced weight, increased capability drive the need for research in this area.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2000
- Accession Number
- ADA405016
Entities
People
- J. S. Shelley
Organizations
- Air Force Research Laboratory