SOW.pdf
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- Vibration System Head Expander
- Solicitation number
- NNJ16588634Q
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Head Expander Purchase Request Statement of Work
The JSC Static and Dynamic Test Facility requires a vibration system Head Expander for use with an existing vertical axis electro-dynamic shaker system. The requirement is for a round, magnesium head expander 48" in diameter. Head Expander-to-Armature attachment fastener hole pattern is required to match our existing shaker armature pattern which has a quantity of
32 x 1/2”-20 UNF bolt inserts located at 8”, 12”, 16” and 20” diameters (see Figure 1). The test-article mounting top surface of the head expander shall include a 2” x 2” square grid pattern of
3/8”-24 UNF inserts, exact quantity furnished to be as many as layout allows determined by vendor, with insert grid pattern straddling the head expander centerline. Head expander must be controllable for sine and random vibration testing applications from 5-2000Hz.
Figure 1. Existing Armature Footprint
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