Modal testing using a full instrumentation technique
The Modal Group at Sandia National Laboratories performs a variety of tests on structures ranging from weapons systems to wind turbines. The desired number of data channels for these tests has increased significantly over the past several years. Tests requiring large numbers of data channels makes roving, accelerometers impractical and inefficient. The Modal Lab has implemented a method in which the test unit is fully instrumented before any data measurements are taken. This method uses a 16 channel data acquisition system and a mechanical switching setup to access each bank of accelerometers. A data base containing all transducer sensitivities, location numbers, and coordinate information is resident on the system enabling quick updates for each data set as it is patched into the system. Ibis method has reduced test time considerably and is easily customized to accommodate data acquisition systems with larger channel capabilities.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6602511
- Report Number(s):
- SAND-93-0451C; CONF-930561--2; ON: DE93009635
- Country of Publication:
- United States
- Language:
- English
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45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
450000 -- Military Technology
Weaponry
& National Defense
47 OTHER INSTRUMENTATION
ACCELEROMETERS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DATA ACQUISITION SYSTEMS
DESIGN
EQUIPMENT
FUNCTIONS
MACHINERY
MEASURING INSTRUMENTS
MISSILES
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
RESPONSE FUNCTIONS
TESTING
TRANSDUCERS
TURBINES
TURBOMACHINERY
WIND TURBINES