Results 71 to 80 of about 5,519 (211)
Turbopumps for cryogenic upper stage engines [PDF]
Small, high-performance LO2 and LH2 turbopump assembly configurations were selected, detail designs were prepared and two of each unit were fabricated with each unit consisting of pump, turbine gas generator, and appropriate controls.
Csomor, A. +2 more
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Rotor response for transient unbalance changes in a nonlinear simulation [PDF]
Transient unbalance shifts were determined not to excite a rotor instability in the high pressure turbomachinery of the Space Shuttle Main Engine using the current rotor dynamic models.
Beatty, R. F. +2 more
core +1 more source
Housing flexibility effects on rotor stability [PDF]
Preliminary rotordynamic evaluations are performed with a housing stiffness assumption that is typically determined only after the hardware is built. In addressing rotor stability, a rigid housing assumption was shown to predict an instability at a lower
Beatty, R. F. +2 more
core +1 more source
Turbopump radial and axial rotor support system [PDF]
, 1972 Design of thrust balancer minimizes leakage bypass and obviates need for conventional thrust balancer. System allows operation at low flow rates and high thrust capacity at cryogenic temperatures and high ...
Buckmann, P. S.
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Reliability Assessment of Spherical Assembly Mechanical Seals in Turbo Pumps
LubricantsThe spherical assembly mechanical end-face seal, a pivotal component of the liquid rocket engine turbopump, holds direct influence over the performance of the turbopump.
Tianzhao Li +6 more
doaj +1 more source
Analysis of low-thrust liquid rocket engines with a methane air pump unit
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 The first airplane working on cryogenic fuel was developed in the USSR in early 1980s on the basis of the passenger aircraft Tu-154. It was then modified using a hydrogen engine installed instead of one of the three kerosene engines.
A. I. Ivanov +2 more
doaj +1 more source
The performance and application of high speed long life LH2 hybrid bearings for reusable rocket engine turbomachinery [PDF]
Data are presented for two different experimental programs which were conducted to investigate the characteristics of a hybrid (hydrostatic/ball) bearing operating in liquid hydrogen. The same bearing design was used in both programs.
Hannum, N. P., Nielson, C. E.
core +1 more source
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016 One of the promising trends in the improvement of stand test data management and control systems and emergency protection systems involves the development of intellectual peripheral devices that provide communication with test articles.
O. A. Volnukhin +3 more
doaj +1 more source
Advanced propulsion concepts for orbital transfer vehicles [PDF]
Studies of the United States Space Transportation System show that in the mid-to-late 1990s expanded capabilities for Orbital Transfer Vehicles (OTV) will be needed to meet increased payload requirements for transporting materials and possible men to ...
Cooper, L. P.
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Development Status of the L75: A Brazilian Liquid Propellant Rocket Engine
Journal of Aerospace Technology and Management, 2014 This paper provides an overview of the design and development process of the L75 Liquid Propellant Rocket Engine (LPRE). Being developed at Institute of Aeronautics and Space (IAE), it is the first Brazilian open-cycle liquid rocket engine pressurized by
Daniel Soares de Almeida +1 more
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