Channel - .NESC Academy Spotlight
12/4/2024 1:36:51 AM
Channel Videos
Aerodynamic Performance Testing
Discipline: Aerosciences
Fran Capone, Bob Berrier and Larry Leavitt spent a majority of their NASA careers at the LaRC 16-Foot Transonic Tunnel conducting research in propulsion airframe integration (PAI). From WWII through its closure in 2004, the 16 Ft was at the center of PAI testing – practically every military vehicle was tested there. Fran, Bob and Larry have a tremendous amount of experience conducting PAI testing on a wide range of vehicles including DoD, commercial and space. Through the years, they developed several training modules for new employees on conducting wind tunnel tests with an emphasis on powered testing and PAI. They have graciously agreed to dust off some of those training presentations and share their knowledge with the NASA community.
Fran Capone
5/31/2017 4:28:00 PM
Common Thermal Modeling Mistakes, Part 1
Discipline: Passive Thermal
This presentation was recorded at the Thermal & Fluids Analysis Workshop (TFAWS) on August 3rd, 2016.
This course will cover the some of the common mistakes made in thermal modeling, and how to avoid them. Thermal Desktop will be used as a platform to demonstrate many of the common errors by both new analysts as well as experienced engineers in building a thermal model. Other non-software-associated errors will also be covered. Topics covered will include common errors in assumptions, materials, configurations, radiation, orbital analysis, and common faults in problem setup, analysis case runs and record-keeping. The course should help you as an engineer to watch for these common errors in the future, and help you avoid them.
Ruth Amundsen
10/6/2016 5:38:00 PM
Fundamentals of Planetary Tour Design
Discipline: Loads & Dynamics
Original Webcast Air Date: August 26th, 2015.
The first robotic planetary missions (e.g. Mariners, Voyager) were flybys, with limited time in the vicinity of their targets for scientific observations. Following these were planetary orbiters, including missions to planets with multiple satellites (Galileo to Jupiter, Cassini to Saturn) for which the satellites were themselves targets of scientific investigation along with the planetary environment. Both Jupiter and Saturn have satellites that are large enough so that flybys of these satellites can be used to shape and “steer” the trajectory through the planetary system to wring the most science out of the limited amount of propellant (and money) available for the mission. This webcast will discuss the fundamentals of design of satellite tours and the twists and tricks that are used by designers using the satellites as trajectory design tools.
Aron Wolf
9/23/2015 6:00:00 PM
Human Factors of Remotely Piloted Aircraft Systems: Lessons from Incident Reports
Discipline: Human Factors
Webcast Air Date: September 13, 2016
Before remotely piloted aircraft systems (RPAS) can operate routinely and safely in civilian airspace, we need to understand the unique human factors associated with these aircraft. Minor incidents are a potentially rich source of data, however, the RPAS sector has produced relatively few incident reports that describe events from the perspective of RPAS pilots. An exploratory study was conducted to examine the feasibility of collecting voluntary incident reports from RPAS pilots. Twenty-three experienced RPAS pilots volunteered to participate in focus groups in which they were invited to recall incidents that revealed a system flaw, or that highlighted a case where the human operator contributed to system resilience or mission success. Participants reported a total of 90 incidents. Some of the issues described in the reports have received significant attention in the literature, or are analogous to human factors of manned aircraft. In other cases, incidents involved human factors that have not yet been the subject of extensive study. Human factor issues included control station design considerations, vigilance during monotonous flights, transfer of control between control stations, the management of lost link procedures, and decision-making during emergencies. Although many of the reported incidents involved pilot errors, the participants also provided examples of the positive contribution that humans make to the operation of highly-automated systems.
Dr. Alan Hobbs
9/13/2016 6:00:00 PM
Model-Centric Engineering, Part 1: Introduction to Model-Based Systems Engineering
Discipline: Systems Engineering
For examples of how NASA uses model-based systems engineering, use the "Systems Engineering Webcast Series" link.
Dr. Daniel Dvorak
12/19/2013 6:13:00 PM
Model-Centric Engineering, Part 2: Introduction to System Modeling
Discipline: Systems Engineering
For examples of how NASA uses model-based systems engineering, use the "Systems Engineering Webcast Series" link.
Steve Jenkins
3/12/2014 3:18:00 PM
Model-Centric Engineering, Part 3: Foundational Concepts for Building System Models
Discipline: Systems Engineering
For examples of how NASA uses model-based systems engineering, use the "Systems Engineering Webcast Series" link.
Steve Jenkins
4/28/2015 7:59:00 PM
Short Course on Lithium-ion Batteries: Fundamental Concepts, Battery Safety, and Modeling Techniques
Originally aired December 4, 2018.
Disciplines: Passive Thermal, Electrical Power
This short course provides participants with an in-depth discussion on three aspects of lithium-ion (Li-ion) batteries. First an understanding of Li-ion battery fundamentals is provided through a brief discussion centered on the aerospace industry’s choice to use Li-ion batteries, general performance characteristics, electrochemical reaction basics, and the heat generated during nominal operation. Secondly, Li-ion battery safety is addressed with respect to thermal runaway and battery safety. Lastly, this course will lead the participants through the basic construction process of a thermal model of a Li-ion battery assembly that is capable of simulating nominal heating and thermal runaway heating. The overall goal of the course is to provide participants with an in-depth understanding of both the fundamental and thermal aspects of Li-ion batteries.
William Walker
2/25/2019 7:00:00 PM
Structural Analysis Part 1
Discipline - Structures
Dr. Ivatury Raju
7/8/2013 5:37:00 PM
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