Results 21 to 30 of about 2,198 (263)
Development of Technology and Ballistic Research of the Propulsion Unit for 122 mm Rocket Missile with an Extended Range [PDF]
Problemy 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
Rocket motor microphone investigation. [PDF]
The Journal of the Acoustical Society of America, 2010 Identification of optimal microphone configurations and instrumentation is underway as a continuous process improvement effort at ATK Space Systems, where large solid rocket motors (SRMs) have been tested for decades. Rocket motor tests provide a unique environment which cannot be fully duplicated in a laboratory.
Eric Herrera +4 more
openaire +1 more source
Aerospace, 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]
E3S 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
Numerical Investigation on Hybrid Rocket Motors with Star-Segmented Rotation Grain
Aerospace, 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
Vojnotehnički 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
Range and Accuracy Improvement of Artillery Rocket Using Fixed Canards Trajectory Correction Fuze
Aerospace, 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
Defence 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
Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment
Advanced Healthcare Materials, EarlyView.Chitosan‐coated melatonin nanoemulsions (MN) recovered from a sounding rocket mission preserve droplet size and controlled‐release behavior, whereas uncoated nanoemulsions show ageing‐driven droplet growth and increased accessible drug fraction. Simple polymer coatings thus enhance the flight resilience of liquid space medicines under cumulative launch
Modupe Adebowale +4 more
wiley +1 more source
Evolution of OLED Lamination Technology With Development of Display Form Factors
Advanced Materials Technologies, EarlyView.This review evaluates the evolution of organic light‐emitting diode (OLED) lamination technologies alongside advancing display form factors. It contrasts optically clear adhesives and resins, highlighting uniformity control for rigid screens, bubble‐free optimization for bended architectures, and visible‐light curing for foldable layers.
Kwan‐Young Han, Ji‐Hoon Park
wiley +1 more source