Tab 04 SOW.pdf

STATEMENT OF WORK

1. Objective/Requirements

The Lunar Roll-Out Solar Array (L-ROSA) project will be performing a modal test of the Slit Tube Boom test article at NASA’s Langley Research Center in August and September of 2025.

The modal test will require additional instrumentation beyond what is currently available at NASA Langley. Additional accelerometers, impact hammers, and related cables will need to rented in order to meet the instrumentation requirements for the test.

2. Characteristics, Scope, and Specs

The rented equipment must include the following:

1. Qty 23 x Triaxial Integrated Electronics Piezo-Electric (IEPE) accelerometers that meet the following minimum specifications (PCB TLD356A17 or equivalent)

a. 500 mV/g sensitivity

b. ±10 g measurement range

c. Frequency response magnitude of ±5% from 0.5 Hz to 100 Hz

d. Phase response of ±5° from 2 Hz to 100 Hz

e. Non-linearity of ≤ 1%

f. Spectral noise < 20 μg/√Hz from 1 Hz to 100 Hz

g. 0.6 x 0.6 x 0.9 inches or smaller

h. 10 grams or less

i. Transducer Electronic Data Sheet (TEDS)

j. A NIST-traceable calibration certificate providing sensitivity at 100 Hz

2. Qty 19 x 50 ft long, low noise cable compatible with Item 1 at one end and, terminated in three BNC plugs at the other end (PCB 034G50 or equivalent)

3. Qty 4 x 20 ft long, low noise cable compatible with Item 1 at one end and, terminated in three BNC plugs at the other end (PCB 034G20 or equivalent)

4. Qty 1 x IEPE modal test hammer that meets the following minimum specifications (PCB TLD086C01 or equivalent)

a. 50 mV/lbf sensitivity

b. 100 lb measurement range

c. Non-linearity of ≤ 1%

d. Hammer mass approximately 0.1 kg

e. Replaceable tips of varying levels of softness, including at least one plastic tip and two softer tips

f. Transducer Electronic DataSheet (TEDS)

g. A NIST-traceable calibration certificate providing the sensitivity for all provided hammer tips

5. Qty 1 x IEPE modal test hammer that meets the following minimum specifications (PCB TLD086D20 or equivalent)

a. 1 mV/lbf sensitivity

b. 5000 lb measurement range

c. Non-linearity of ≤ 1%

d. Hammer mass approximately 1.1 kg

e. Replaceable tips of varying levels of softness with approximately 2 inch diameter

f. Transducer Electronic DataSheet (TEDS)

g. A NIST-traceable calibration certificate providing the sensitivity for all provided hammer tips

3. Place of Performance

All equipment is to be delivered to NASA’s Langley Research Center at the following address:

NASA Langley Research Center /Mail Stop 424 Building 1206, (Receiving) 4 S. Marvin Street Hampton, VA 23681

4. Period of Performance

The rental period shall be for a period of 60 days, with a start date no earlier than July 28, 2025 and no later than August 8, 2025.