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Propulsion and launching analysis of variable-mass rockets by analytical methods

open access: yesPropulsion and Power Research, 2013
In this study, applications of some analytical methods on nonlinear equation of the launching of a rocket with variable mass are investigated. Differential transformation method (DTM), homotopy perturbation method (HPM) and least square method (LSM) were
D.D. Ganji   +4 more
doaj   +2 more sources

Simulation Model for Hardware-in-the-Loop Tests of the ILR-33 AMBER Rocket Control System [PDF]

open access: yesSensors
In this paper, an advanced flight simulation model of the ILR-33 AMBER rocket is shown. The model is designed for Hardware-in-the-Loop (HiL) tests of the rocket control system.
Dawid Cieśliński   +4 more
doaj   +2 more sources

Natural convection with variable fluid properties of couple stress fluid with Cattaneo-Christov model and enthalpy process

open access: yesHeliyon, 2023
The geometry under consideration for this flow problem, namely paraboloid surface is similar to aircraft and car bonnet, bullet shape, front shape of submarine, rockets and these types of are useful in manufacturing of formula F1 cars and airplanes.
Muhammad Awais, T. Salahuddin
doaj   +1 more source

Rotary Motion of Variable Mass Cylinder [PDF]

open access: yesمجله مدل سازی در مهندسی, 2009
In this paper with the use of theory of variable mass systems and dynamic analysis, rotary motion of variable mass cylinder has been evaluated. Effects of angular rates, the methods of mass reduction and propellant burn, the shape and measurement of ...
سعدالدین   +3 more
doaj   +1 more source

Attitude Dynamics of a Spinning Rocket with Internal Fluid Whirling Motion [PDF]

open access: yesINCAS Bulletin, 2014
This paper evaluates the impact that helical motion of fluid products of combustion within the combustion chamber of a rocket can have on the attitude dynamics of rocket systems.
Marius Ionut MARMUREANU, Ion FUIOREA
doaj   +1 more source

Equations of motion for the variable mass flow-variable exhaust velocity rocket [PDF]

open access: yesAstrodynamics Conference, 1972
An equation of motion for a one dimensional rocket is derived as a function of the mass flow rate into the acceleration chamber and the velocity distribution along the chamber, thereby including the transient flow changes in the chamber. The derivation of the mass density requires the introduction of the special time coordinate.
openaire   +1 more source

Attitude stability and altitude control of a variable-geometry Earth-orbiting solar sail [PDF]

open access: yes, 2016
A variable-geometry solar sail for on-orbit altitude control is investigated. It is shown that, by adjusting the effective area of the sail at favorable times, it is possible to influence the length of the semi-major axis over an extended period of time.
Ceriotti, Matteo   +2 more
core   +1 more source

General motion of a variable-mass flexible rocket with internal flow [PDF]

open access: yesJournal of Spacecraft and Rockets, 1970
This paper consists of two parts. In the first part a new and general formulation of the dynamical problems associated with the powered flight of variable-mass , flexible rockets with internal gas flow is presented. The formulation comprises six ordinary differential equations for the rigid-body motion and three partial differential equations for the ...
openaire   +1 more source

Hybrid fuzzy sliding mode control for motorised space tether spin-up when coupled with axial and torsional oscillation [PDF]

open access: yes, 2010
A specialised hybrid controller is applied to the control of a motorised space tether spin-up space coupled with an axial and a torsional oscillation phenomenon.
Cartmell, M., Chen, Y.
core   +1 more source

Modeling for Active Control of Combustion and Thermally Driven Oscillations [PDF]

open access: yes, 1991
Organized oscillations excited and sustained by high densities of energy release in combustion chambers have long caused serious problems in development of propulsion systems.
Culick, F. E. C.   +3 more
core   +1 more source

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