Research papers
5,748 papers · NASA NTRS, NTSB, FAA CAMI
NASA NTRS · 1,266 NTSB Safety Studies · 12 NTSB Aircraft Accident Reports · 17 Embry-Riddle Scholarly Commons · 1,993
16 matches · NASA NTRSSpacecraft Propulsion And Power
- NASA NTRS 2022 GSFC Conference Paper
Propulsive Trajectory Optimization to Minimize Surface Contamination
Descent retroburns using hydrazine thrusters will generate contaminants in their exhaust that can alter underlying samples, such as water-rich surfaces coinciding with possible life signatures or other science measuremen…
- NASA NTRS 2019 HQ Other - Patent
Dual Expander Cycle Rocket Engine with an Intermediate, Closed-cycle Heat Exchanger
A dual expander cycle (DEC) rocket engine with an intermediate closed-cycle heat exchanger is provided. A conventional DEC rocket engine has a closed-cycle heat exchanger thermally coupled thereto.
- NASA NTRS 2019 ARC Conference Paper
Simulation of Liquid Rocket Engine Failure Propagation Using Self-Evolving Scenarios
Traditional probabilistic risk assessment approaches often require failure scenarios to be explicitly defined through event sequences that are then quantified as part of the integrated analysis.
- NASA NTRS 2019 MSFC Other
Engine System Loads Analysis Compared to Hot-Fire Data
Early implementation of structural dynamics finite element analyses for calculation of design loads is considered common design practice for high volume manufacturing industries such as automotive and aeronautical indust…
- NASA NTRS 2019 JSC Presentation
Space Shuttle Upgrades Advanced Hydraulic Power System
Three Auxiliary Power Units (APU) on the Space Shuttle Orbiter each provide 145 hp shaft power to a hydraulic pump which outputs 3000 psi hydraulic fluid to 41 hydraulic actuators.
- NASA NTRS 2019 GRC Conference Paper
Electrical Pressurization Concept for the Orion MPCV European Service Module Propulsion System
The paper presents the design of the pressurization system of the European Service Module (ESM) of the Orion Multi-Purpose Crew Vehicle (MPCV).
- NASA NTRS 2019 CDMS Conference Paper
Computer controlled vent and pressurization system
The paper illustrates how the Centaur space launch vehicle airborne computer, which was primarily used to perform guidance, navigation, and sequencing tasks, was further used to monitor and control inflight pressurizatio…
- NASA NTRS 2019 JSC Presentation
Apollo CSM Power Generation System Design Considerations, Failure Modes and Lessons Learned
The objectives of this slide presentation are to: review the basic design criteria for fuel cells (FC's), review design considerations during developmental phase that affected Block I and Block II vehicles, summarize the…
- NASA NTRS 2019 MSFC Other
D-21B RBCC Modification Feasibility Study
This report presents a feasibility study on the modifications required to re-engine the Lockheed D-21 Drone for use as a NASA RBCC engine.
- NASA NTRS 2019 CDMS Conference Paper
Reliability analysis techniques for engine-out failures in main propulsion systems
Reliability formulas are derived for a liquid main propulsion system consisting of n engines, which allows for mission success in the event a single-engine controlled shutdown occurs afer some given time.
- NASA NTRS 2019 CDMS Conference Paper
Rocket engine failure detection using system identification techniques
The theoretical foundation and application of two univariate failure detection algorithms to Space Shuttle Main Engine (SSME) test firing data is presented.
- NASA NTRS 2019 CDMS Other - Patent
Dual-fuel, dual-mode rocket engine
The invention relates to a dual fuel, dual mode rocket engine designed to improve the performance of earth-to-orbit vehicles. For any vehicle that operates from the earth's surface to earth orbit, it is advantageous to u…
- NASA NTRS 2019 CDMS Contractor Report (CR)
Dual-fuel, dual-throat engine preliminary analysis
A propulsion system analysis of the dual fuel, dual throat engine for launch vehicle applications was conducted. Basic dual throat engine characterization data were obtained to allow vehicle optimization studies to be co…
- NASA NTRS 2019 CDMS Conference Paper
Dual throat engine design for a SSTO launch vehicle
A propulsion system analysis of a dual fuel, dual throat engine for launch vehicle application was conducted. Basic dual throat engine characterization data are presented to allow vehicle optimization studies to be condu…
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Solid rocket booster thrust vector control subsystem test report (D-1)
The results of the sequence of tests performed on the space shuttle solid rocket booster thrust vector control subsystem are presented.
- NASA NTRS 2019 CDMS Technical Memorandum (TM)
Electrical power requirements analysis. Single failure tolerant entry
The results of an analysis of the orbiter electrical power system for the case of a single failure tolerant (SFT) entry are presented.