Eaton Throat-Valve Element prototype concept. Phase 1

Technical Report · Wed Dec 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10167496· OSTI ID:10167496

Stacey, M R; Arendts, J G; Berry, R A; Korth, G E; Schwieder, P R; Sekot, J P; Snow, S D

As part of an ongoing effort to improve techniques for simulating nuclear blasts, the US Army Research Laboratory has been studying the merits of computer-controlled valves. The valve studies have been aimed at providing the Department of Defense with the capacity to conduct nuclear blast and thermal survivability testing on full-scale tactical vehicles. This report documents the development and findings of a computer model that simulates the behavior of the Eaton-Throat Valve Element (ETVE) prototype, and describes a proposed modification concept for the ETVE. The computer model reveals three main findings: (1) the ETVE chatters during the open cycle, (2) the chatter is caused by the high gas forces on the sliding sleeve as the driver gas passes through its portholes, and (3) the chatter is aggravated because there is insufficient damping in the system. The INEL recommends opening the ETVE by sliding the sleeve toward the downstream end of the valve instead of toward the upstream end, as the ETVE is presently configured, and to provide additional damping to the system. However, neither of these configuration changes can be achieved easily, and a redesign and analysis f the ETVE must be completed prior to performing any work on the current ETVE prototype. The ETVE simulation model proved to be an extremely valuable tool in analyzing the qualitative nature of the valve`s operation. Further development of the model is recommended for quantitative analysis and design of the ETVE. This report explains the model and stress analysis findings, and proposes a redesign concept.

• Research Organization: EG and G Idaho, Inc., Idaho Falls, ID (United States)
• Sponsoring Organization: Department of Defense, Washington, DC (United States)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 10167496
• Report Number(s): EGG-ME--11131; ON: DE94015291
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450200
BLAST EFFECTS
COMPUTER-AIDED DESIGN
COMPUTERIZED SIMULATION
EXPERIMENTAL DATA
FLUID MECHANICS
MECHANICAL VIBRATIONS
NUCLEAR EXPLOSIONS
NUCLEAR EXPLOSIONS AND EXPLOSIVES
PROGRESS REPORT
RESPONSE FUNCTIONS
SEALS
VALVES