Results 1 to 10 of about 413 (88)

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

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

Topology Optimization of Constrained Layer Damping on Plates Using Method of Moving Asymptote (MMA) Approach

open access: yesShock and Vibration, 2011
Damping treatments have been extensively used as a powerful means to damp out structural resonant vibrations. Usually, damping materials are fully covered on the surface of plates.
Zheng Ling   +3 more
doaj   +1 more source

On the Angular Momentum of Rockets, Balloons, and Other Variable Mass Systems

open access: yes, 2016
Variable mass systems are a classic example of open systems in classical mechanics. The reaction forces due to mass variation propel ships, balloons, and rockets. Unlike free constant mass systems, the angular momentum of these systems is not of constant magnitude due to the change in mass.
Nanjangud, Angadh, Eke, Fidelis
openaire   +2 more sources

Demonstration of dual-thrust capability in hybrid rockets using multi-layered tubular fuel grains

open access: yesFirePhysChem
This study demonstrates the thrust modulation capabilities of a hybrid rocket motor employing a Multi-Layered Tubular (MLT) fuel grain. The MLT configuration involves arranging the fuel grains with distinct regression rates as layers.
Mengu Dinesh   +2 more
doaj   +1 more source

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