Measurement of lateral launch loads on re-entry vehicles using SWAT
The Sum of Weighted Accelerations Technique (SWAT) has been developed at Sandia National Laboratories to infer dynamic forces acting on free elastic structures from acceleration measurements. A derivative of SWAT known as SWAT TEEM (Sum of Weighted Accelerations using Tome Eliminated Elastic Modes) is utilized. This paper describes experiments demonstrating how this technology can be applied to measure lateral launch loads on Re-entry Vehicle (RV) payloads. A technique to determine the number of sensors and best locations is described. Experiments are performed to excite a structure to which a mockup RV is mounted. Acceleration measurements on the RV are used to reconstruct the lateral force acting at the RV base, and these results are compared to measured results.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 10107560
- Report Number(s):
- SAND-93-1419C; CONF-940146-1; ON: DE94003109; BR: GB0103012
- Resource Relation:
- Conference: 12. international modal analysis conference,Honolulu, HI (United States),31 Jan - 3 Feb 1994; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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