Results 21 to 30 of about 2,197 (263)

Design of shoulder: Launched unguided rocket with thermobaric warhead [PDF]

open access: yesScientific Technical Review, 2015
This paper presents a calculation methodology of geometrical and mass parameters for shoulder-launched rocket with thermobaric warhead. An optimization of design rocket parameters for specified tactical and technical requirements is carried out by the ...
Jovančić Siniša, Simić Danica
doaj  

Development of Technology and Ballistic Research of the Propulsion Unit for 122 mm Rocket Missile with an Extended Range [PDF]

open access: yesProblemy Mechatroniki, 2015
The paper presents the results of ballistic studies on the demonstrator missile 122 mm rocket motor of an extended range with the heterogeneous solid propellant.
Bogdan FLORCZAK   +2 more
doaj   +1 more source

Multi-Objective, Multi-Disciplinary Design Optimization and Multi-Attribute Evaluation of Hybrid Rocket Motors Used for Manned Lunar Lander

open access: yesAerospace, 2023
This paper proposed a multi-objective, multi-disciplinary design optimization and multi-attribute evaluation method for the manned lunar lander descent stage.
Yang Liu   +5 more
doaj   +1 more source

CFD Analysis of a Solid Propellant Retro Rocket Motor using Ansys Fluent [PDF]

open access: yesE3S Web of Conferences, 2020
A Solid propellant Retro Rocket Motor with a C-D Nozzle is analyzed using Ansys Fluent 17.1 .Steady State analysis of a retro rocket motor has been done for Viscous models like Inviscid and k-ɛ (Realizable) with air and gas as working fluids.
Anil Hemanth Varada, Jyothi U.S
doaj   +1 more source

Ispitivanje piropatrona i raketnog motora pilotskog sedišta / Testing pyrocartridges and the rocket motor of the ejection seat

open access: yesVojnotehnički Glasnik, 2008
Raketni motor pilotskog sedišta ima složen geometrijski oblik, tako da njegov potisak deluje pod određenim uglom u odnosu na ravan simetrije pilotskog sedišta.
Milorad Savković
doaj   +1 more source

Numerical Investigation on Hybrid Rocket Motors with Star-Segmented Rotation Grain

open access: yesAerospace, 2022
A novel fuel grain configuration comprising two star-segmented grains is proposed. The effect of the rotation, mid-chamber length, and segmented position on the fuel regression rate and the combustion efficiency in hybrid rocket motors with star ...
Hui Tian   +5 more
doaj   +1 more source

Range and Accuracy Improvement of Artillery Rocket Using Fixed Canards Trajectory Correction Fuze

open access: yesAerospace, 2022
This paper presents a two-phase guidance and control algorithm to extend the range and improve the impact point accuracy of a 122-mm rocket using a fixed canards trajectory correction fuze. The guidance algorithm consists of a unique glide and correction
Ali Raza, Hua Wang
doaj   +1 more source

Ablation characteristics of insulator under high-temperature gas dual-pulse erosion

open access: yesDefence Technology, 2022
This study numerically simulated and investigated the flow field characteristics of a typical dual-pulse solid rocket motor with a soft pulse separation device through thermal insulation ablation under high-temperature dual-pulse erosion.
Yang Liu   +3 more
doaj   +1 more source

Estimation of internal ballistic parameters for the 107 mm rocket motor conceptual design

open access: yesDefense and Security Studies
The demand for solid propellant rocket motors does not seem to fade, regardless of constant improvements in rocket technology. To make modifications that will result in improved design, it is crucial to use already existing motor models.
Ilma Subotic
doaj   +1 more source

A Machine Vision‐Guided Microphysiological Platform With Automated Microfluidics Enables Longitudinal Biomarker Monitoring and Emulation of Translationally Relevant Exposure Scenarios

open access: yesAdvanced Science, EarlyView.
A pneumatically actuated multi‐tissue microphysiological system is integrated with AI‐based machine vision and automatic sampling and replenishment systems. The platform allows for the emulation of translationally relevant long‐term pharmacokinetic exposure scenarios for multiple weeks while enabling longitudinal monitoring of response biomarkers ...
Jibbe Keulen   +15 more
wiley   +1 more source

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