NASA Engineering and Safety Center

NASA Engineering and Safety Center

Contact Dynamics Predictions Utilizing theNESC Parameterless Contact Model

Download PDF: Contact Dynamics Predictions Utilizing theNESC Parameterless Contact Model Modeling the capture of the Mars Sample Return (MSR) Orbiting Sample (OS) involves understanding complex dynamic behavior, which includes the OS making contact against the interior of the capture enclosure.
Posted December 19, 2024
NASA Engineering and Safety Center

2024 NESC Technical Update

Annual Report of NESC Technical Activities On behalf of the NASA Engineering and Safety Center (NESC), I am pleased to provide you with the 2024 NESC Technical Update. This annual report summarizes the technical work, engineering advancements, and knowledge capture efforts we made in FY24.
Posted December 12, 2024
NASA Engineering and Safety Center

Key Considerations When Developing Avionics for Safety-Critical Systems

This article is from the 2024 Technical Update. Multiple human spaceflight programs are underway at NASA including Orion, Space Launch System, Gateway, Human Landing System, and EVA and Lunar Surface Mobility programs.
Posted December 12, 2024
NASA Engineering and Safety Center

6DOF Check Cases

This article is from the 2024 Technical Update. In 2015, the NESC released benchmark Earth-based check-cases for well specified, rigid-body, six-degree-of-freedom (6DOF) aero/spacecraft models to promote consistent and accurate flight simulations across multiple Agency tools and facilities.
Posted December 12, 2024
General
NASA Engineering and Safety Center

Helium Conservation by Diffusion Limited Purging of Liquid Hydrogen Tanks

This article is from the 2024 Technical Update. The NASA Engineering and Safety Center (NESC) has developed an analytical model that predicts diffusion between two gases during piston purging of liquid hydrogen (LH2) tanks.
Posted December 12, 2024
General
NASA Engineering and Safety Center

Considerations for Using Autonomous Flight Termination Softwarein Crewed Launch Vehicles

This article is from the 2024 Technical Update Autonomous flight termination systems (AFTS) are being progressively employed onboard launch vehicles to replace ground personnel and infrastructure needed to terminate flight or destruct the vehicle should an anomaly occur.
Posted December 12, 2024
NASA Engineering and Safety Center

Material Compatibility of Common Aerospace Metals in MMH/MON-3

This article is from the 2024 Technical Update. The NESC evaluated material compatibility of some common aerospace metals in monomethylhydrazine (MMH) and nitrogen tetroxide (MON-3).
Posted December 12, 2024
Johnson Space Center
NASA Centers & Facilities
NASA Engineering and Safety Center
NASA Safety Center
People of Johnson

Part Ojibwe, All NASA: Linda Spuler’s Role in Protecting Johnson Space Center 

Linda Spuler, emergency manager at NASA’s Johnson Space Center in Houston, believes that everyone has a story. “Our stories highlight what we have in common, but they also make us each unique,” she said.  Spuler has worked at Johnson for over 32 years, spending most of her career in Center Operations. Her story has involved […]
Posted November 18, 2024
Armstrong Flight Research Center
NASA Engineering and Safety Center
NASA Safety Center

NASA’s Commitment to Safety Starts with its Culture

NASA works on projects that often have never been done, or perhaps the way they are being done has never been tried. Living on the edge of innovation requires a high degree of risk. After organizational silence led to the loss of space shuttle Challenger and its crew in 1986, NASA vowed to change the […]
Posted April 30, 2024
General
NASA Engineering and Safety Center

Innovation that Impacts All NASA Missions: Improving How We Engineer Our Systems

Download PDF: Innovation that Impacts All NASA Missions: Improving How We Engineer Our Systems John F. Kennedy set the tone for NASA’s culture in 1961 during his famous speech on going to the Moon, “We choose to go to the Moon not because it’s easy, but because it’s hard; because that goal will serve to […]
Posted April 29, 2024
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