Results 1 to 10 of about 591 (257)
Optimum Disposition of Metal Particles in the Propellant Grain [PDF]
International Journal of Aerospace Engineering, 2014 Using the dispersed metal in solid propellants to increase the temperature of combustion products leads to such a problem as the specific impulse loss due to the incomplete combustion of metal particles in the exhaust products.
Leonid L. Minkov +2 more
doaj +2 more sources
Position Normalization of Propellant Grain Point Clouds
AerospacePoint cloud data obtained from scanning propellant grains with 3D scanning equipment exhibit positional uncertainty in space, posing significant challenges for calculating the relevant parameters of the propellant grains.
Junchao Wang +5 more
doaj +2 more sources
Theoretical stress mechanism and structural integrity of viscoelastic propellant grains with variable Poisson's ratio. [PDF]
Sci RepFor the propellant grain of solid rocket motors (SRMs) with circular inner surfaces, the generalized Maxwell model (GMM) and the generalized Kelvin–Voigt model (GKV) are used to characterize the relaxation properties of the grain’s elastic modulus and ...
Wang X +5 more
europepmc +2 more sources
A numerical method for solid propellant grain design [PDF]
Scientific Technical Review, 2018 In this study, a grain burnback analysis for an Anchor solid propellant grain geometry for a rocket motor was done. The design process involves parametric modeling of the geometry in using PTC Creo software through dynamic variables that define the ...
Tanaskovski Bojan +3 more
doaj +2 more sources
Research on the influence of loading rate on the dynamic initiation fracture toughness of CMDB propellant. [PDF]
Sci RepIn the field of gun launched missile extended range rocket, the propellant grain in the rocket needs to withstand significant launch loads during their firing phase, and also bear the high pressure caused by ignition, and the impact of launch overloads ...
Zheng J +5 more
europepmc +2 more sources
Xibei Gongye Daxue Xuebao, 2022 Aiming at the structural response characteristics of solid rocket motor (SRM) under vertical storage conditions, the creep tests of HTPB propellant under different stress levels were carried out, and the creep constitutive model of the propellant was ...
CHEN Ke +4 more
doaj +1 more source
Performance Analysis of the Solid Rocket Propulsion System Using Solid Modeling and Level Set Method [PDF]
한국정밀공학회지, 2021 The performance prediction and grain burn-back analysis of rocket motor are important steps in the designing of a solid propellant rocket motor. The grain burn-back analysis of the solid grain identifies the burning surface area at each burning step in ...
Kyung Moo Kim, Doo Hee Han, Min Kyum Kim
doaj +1 more source
Methodology for Testing High-Energy Materials Under Low Temperature Conditions [PDF]
Problemy Mechatroniki, 2021 The methodology developed for testing gun propellants at low temperatures according to PN-EN ISO 604:2006 is presented in the paper. Brief characteristics are given of the materials tested and the most important static compression test conditions, such ...
Patryk MODRZEJEWSKI, Jacek JANISZEWSKI
doaj +1 more source
International Journal of Aerospace Engineering, 2023 In this study, the effect of the axial gap on the mechanical response of a cartridge-loaded propellant grain under vibration loads is investigated. The wide strain rate range of uniaxial compression tests (1.7×10−3~4×103 s−1) on the composite modified ...
Yiming Zhang +6 more
doaj +1 more source
Self-assembly of self-propelled magnetic grains [PDF]
EPJ Web of Conferences, 2021 In this work, we study bidisperse mixtures of self-propelled magnetic particles of different shapes via discrete element method simulations. We show how these particles self-assemble into clusters and how these clusters depend on the ratio of the mixture, the magnetic interaction, and the shape of the grains.
Marcos A. Madrid +3 more
openaire +2 more sources