NASA / Aerojet RocketdyneAerospacesince 2019

NASA RS-25 SLS Pogo Accumulator

SLS rocket pogo accumulator (vibration damping component)

Aerospace85% confidence

NASA / Aerojet Rocketdyne – NASA RS-25 SLS Pogo Accumulator

Challenge

The pogo accumulator requires intricate internal passages to damp combustion-driven oscillation. Traditional machining of these internal geometries is extremely expensive.

Solution

SLM-printed Inconel pogo accumulator successfully hot-fire tested at NASA Stennis — the first AM component hot-fire tested for the SLS programme.

Outcomes

01First AM component hot-fire tested for SLS; 7 months to develop vs multi-year traditional

Technologies

Laser Powder Bed Fusion

Source

Tested at NASA Stennis Space Center

Cite this page

APA

AM Roadmap. (2019). NASA RS-25 SLS Pogo Accumulator. AM Roadmap (v0.5.2-evidence-gaps-closed). Retrieved 2026-08-24, from https://amroadmap.com/success-stories/nasa-sls-rs25-pogo-2019

BibTeX

@misc{amroadmap_nasa_rs_25_sls_pogo_accumulator_2019,
  title  = {NASA RS-25 SLS Pogo Accumulator},
  author = {{AM Roadmap}},
  year   = {2019},
  url    = {https://amroadmap.com/success-stories/nasa-sls-rs25-pogo-2019},
  note   = {AM Roadmap dataset v0.5.2-evidence-gaps-closed, accessed 2026-08-24}
}

Canonical URL: https://amroadmap.com/success-stories/nasa-sls-rs25-pogo-2019