نتایج جستجو برای: launch vehicle control

تعداد نتایج: 1424310  

2015
Robert E. Barbré

Space vehicle loads and trajectory assessments utilize archives of both discrete and sequential wind profiles to ensure robust structural integrity during vehicle design. Historically, vehicle programs have used balloonbased measurements, which have three primary limitations inherent to balloon systems. First, the high cost of balloon releases makes high-frequency balloon sampling impractical, ...

2015
Robert E. Barbré

Space vehicle loads and trajectory assessments utilize archives of both discrete and sequential wind profiles to ensure robust structural integrity during vehicle design. Historically, vehicle programs have used balloonbased measurements, which have three primary limitations inherent to balloon systems. First, the high cost of balloon releases makes high-frequency balloon sampling impractical, ...

2004
Claudia M. Meyer Edward Balaban

NASA researchers recently demonstrated successful real-time fault detection and isolation of a virtual reusable launch vehicle main propulsion system. Using a detailed simulation of a vehicle propulsion system to produce synthesized sensor readings, the NASA team demonstrated that advanced diagnostic algorithms, running on flight-like computers, can, in real time, successfully diagnose the pres...

2007
Greg Pisanich

Timely detection and response to catastrophic events during the launch and ascent phase of the Ares I launch system is of paramount importance to crew safety. This requires an abort system capable of detecting and confirming conditions that may lead to catastrophic failure, notifying the crew of the problem, and responding in time to allow the crew to escape safely. The Ares I Abort Failure Det...

Journal: :international journal of advanced design and manufacturing technology 0
mehdi ghanavati afshin ghanbarzadeh

in this project guidance and control of underwater robot, including three engines and propeller attached to it, by fuzzy control has been investigated. fuzzy control is done based on human experience and requiered laws. the robot can also be controlled and guided by the user. this robot may be used in sea or swimming pool environment for finding goal point and locate in desired direction. in ad...

Journal: :Journal of Aerospace Technology and Management 2019

Journal: :Aerotecnica Missili & Spazio 2022

Abstract In a time in which significant number of launch vehicles are being developed, boosted by numerous new space actors demanding cheaper access to space, the need ensure reliability and performance successful Post-Mission Disposal (PMD) is undeniable. The first step analyse previous failures, learning from past mistakes. this paper, failures that occurred over 16 years analysed. These clas...

Journal: :VESTNIK of the Samara State Aerospace University 2015

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