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

NASA Engineering and Safety Center

Identification of Noise Sources During Launch Using Phased Array Microphone Systems

Download PDF: Identification of Noise Sources During Launch Using Phased Array Microphone Systems Every part of a launch vehicle, launch pad, and ground operation equipment is subjected to the high acoustic load generated during lift-off [1].

Posted April 26, 2024

NASA Engineering and Safety Center

Trajectory Reverse Engineering

Download PDF: Trajectory Reverse Engineering A strategy for transferring spacecraft trajectories between flight mechanics tools, called Trajectory Reverse Engineering (TRE), has been developed[1].

Posted April 26, 2024

NASA Engineering and Safety Center

NASA Centers & Facilities

Save-The-Date: DoD-NASA Lidar Technical Interchange Meeting (TIM)

Details DoD-NASA Lidar TIM August 13-15, 2024 MIT Lincoln Laboratory in Arlington, VA (Crystal City)241 18th St S, Arlington, VA 22202 MIT Lincoln Laboratory is hosting a TIM between NASA and DoD to facilitate the sharing of lidar knowledge between these institutions and identify potential areas of collaboration that maximally utilizes the strength

Posted April 4, 2024