Results 11 to 20 of about 7,250 (196)
Analysis of viscoelastic behavior of a filled elastomer under action of different loads [PDF]
Hemijska Industrija, 2017 Mechanical properties of viscoelastic filled polymers strongly depend on temperature and strain rate and vary for several orders of magnitude. During service life, a viscoelastic body, especially carboxy-terminated polybutadiene (CTPB) composite solid ...
Gligorijević Nikola I. +6 more
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Effect of Microstructure on Micro-Mechanical Properties of Composite Solid Propellant
Micromachines, 2021 This study was aimed at determining the effect of microstructure on the macro-mechanical behavior of a composite solid propellant. The microstructure model of a composite solid propellant was generated using molecular dynamics algorithm.
Tianpeng Li +3 more
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Aerospace, 2023 Fused deposition technology (FDM), as an additive manufacturing (AM) technology, holds immense potential in the field of solid grain manufacturing. It can accomplish complex grain shaping with ultra-low-pressure ratios, which are challenging to achieve ...
Shixiong Song +4 more
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Design of Multi-Propellant Star Grains for Solid Propellant Rockets
Defence Science Journal, 1980 A new approach to solve the geometry-problem of solid propellant star is presented. The basis of the approach is to take the web-thickness (a ballistic as well as a geometrical property) as the characteristic length. The nondimensional characteristic parameters representing diameter, length, slenderness-ratio, and ignitor accommodation of the grain are
S. Krishnan, Tarit K. Bose
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Optimum Disposition of Metal Particles in the Propellant Grain
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
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International Journal of Aerospace Engineering, 2020 Unexpected pressure rise may occur in the end-burning grain solid rocket motor. It is generally believed that this phenomenon is caused by the nonparallel layer combustion of the burning surface, resulting in the increase of burning rate along the ...
Wei Xianggeng +5 more
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Solving an irregular burning problem in a small rocket motor [PDF]
Scientific Technical Review, 2014 During the design and development of a solid rocket motor, intensive irregular burning appeared in the area of high initial temperatures. The cylindrical propellant grain was designed for approximately neutral burning, with a hollow tube and both burning
Gligorijević Nikola +5 more
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Analysis of pressure blips in aft-finocyl solid rocket motor [PDF]
, 2016 Ballistic anomalies have frequently occurred during the firing of several solid rocket motors (SRMs) (Inertial Upper Stage, Space Shuttle Redesigned SRM (RSRM) and Titan IV SRM Upgrade (SRMU)), producing even relevant and unexpected variations of the SRM
E., Cavallini +2 more
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Mitigation of slivers using a new propellant grain design to improve propulsion systems
Aviation, 2012 The research work addresses mathematical modelling and computational analysis of novel solid propellant grain configuration. The aviation industry is working on propulsion systems as well.
Sarah Farrukh, M. Bilal Khan
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Regarding the perturbed operating process of DB propellant rocket motor at extreme initial grain temperatures [PDF]
INCAS Bulletin, 2012 Despite many decades of study, the combustion instability of several DB propellants is still of particular concern, especially at extreme grain temperature conditions of rocket motor operating.
Ioan ION, Titica VASILE, Doru SAFTA
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