Tech Briefs Magazine - September 2024 - 20
Satellite Constellation Design
MATERIALS CHANNEL
Sponsored by
solenoid valves are used; originally designed for pairing with
the RV001, the solenoid valves have been adapted to function
as primary bang-bang pressure regulating valves.
This system operates in contrast with chemical propulsion,
employing noble gases like krypton or xenon at very
low flow rates. Gases move through small, pinhole-sized
openings, enabling highly precise adjustments and station
keeping. The design process utilized Marotta's broad range
of spaceflight-qualified components and heritage performance
data; as a result, designing to component capabilities
and system specifications required only minor modifications.
Any additional subcontractor components chosen for
use were commercial-off-the-shelf elements that offered the
same seamless integration and light modification.
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Robots, AI Could Help
the Hunt for New
Materials
Using AI-guided robots, A-Lab at
the Lawrence Berkeley National
Laboratory could help fast-track
materials for batteries, solar cells,
fuel cells, and more.
www.techbriefs.com/tv/
a-lab
Nano-Coatings and
Paints Kill Bacteria
A team at Loughborough
University is harnessing
nanomaterials to develop nextgeneration
paints and coatings
that reduce bacteria and virus
transmission.
www.techbriefs.com/tv/
next-gen-coatings
3D-Printed Living
Material Could Clean
Water
A University of California San
Diego team is 3D printing
seaweed-based polymers to clean
pollutants from water.
www.techbriefs.com/tv/
engineered-living-material
www.techbriefs.tv
20
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Increasing Flexibility to Enhance
Manufacturability
The manifold design illustrated here reduced complexity
and associated assembly time, while offering the flexibility to
be configured as either mechanically regulated or bangbang
pulse-controlled. Machined from a single piece of aluminum,
it incorporates all necessary flow paths and connections.
These design attributes improve the efficiency and
ease of manufacturability, similar to other valve bodies produced
by Marotta.
This design achieves high performance at low cost
through simplified components and a focus on manufacturability.
Part count is minimized, common components are
prioritized, and assembly processes consider how to reduce
complexity. Using only seven machined parts, the RV001
regulator offers an adjustable setpoint and high turn-down
ratio in a compact, light, and cost-effective package. The
PLV015 solenoid valve includes five machined parts, integrating
a filter and optional latching mechanism to further
enhance system functionality and reliability.
Balancing Cost, Quality, and Heritage
Technologies in Satellite Constellation Strategies
The unique challenges of space - zero gravity, thermal
extremes, and a spectrum of environmental contaminants
- can increase development costs for any equipment destined
to perform in space. Satellite constellations must withstand
these rigors, while developers must balance their need
for quality with timely and cost-effective manufacture of critical
parts. Legacy space flight innovations, pivotal in historical
missions like Moon landings and deep space exploration,
now underpin modern constellation strategies - although
their application must adapt to new methodologies.
Heritage expertise, collaboration, and access to detailed
product data equip system providers to strategically refine
component design, maintaining high quality as a cornerstone
even as the industry seeks new, cost-effective methods
to quickly expand LEO systems. By employing modular concepts,
developers can harness existing capabilities to enhance
or expedite propulsion systems, even while emphasizing
simplicity in manufacturing through DFM processes
and principles.
This article was written by Brian Ippolitto, Senior Director,
Business Development of Space Business Unit, Marotta
Controls, Inc. (Montville, NJ). For more information visit
www.marotta.com.
www.techbriefs.com
Tech Briefs, September 2024
https://www.techbriefs.com/tv/red-adhesive
https://www.techbriefs.com/tv/a-lab
https://www.techbriefs.com/tv/next-gen-coatings
https://www.techbriefs.com/tv/engineered-living-material
http://www.marotta.com
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Tech Briefs Magazine - September 2024
Table of Contents for the Digital Edition of Tech Briefs Magazine - September 2024
Tech Briefs Magazine - September 2024 - Intro
Tech Briefs Magazine - September 2024 - Sponsor
Tech Briefs Magazine - September 2024 - Cov1
Tech Briefs Magazine - September 2024 - Cov2
Tech Briefs Magazine - September 2024 - 1
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Tech Briefs Magazine - September 2024 - 16
Tech Briefs Magazine - September 2024 - 16A
Tech Briefs Magazine - September 2024 - 16B
Tech Briefs Magazine - September 2024 - 16C
Tech Briefs Magazine - September 2024 - 16D
Tech Briefs Magazine - September 2024 - 17
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Tech Briefs Magazine - September 2024 - Cov3
Tech Briefs Magazine - September 2024 - Cov4
Tech Briefs Magazine - September 2024 - PIT-Cov1
Tech Briefs Magazine - September 2024 - PIT-Cov2
Tech Briefs Magazine - September 2024 - PIT-1
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Tech Briefs Magazine - September 2024 - PIT-25
Tech Briefs Magazine - September 2024 - PIT-Cov4
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