Results 101 to 110 of about 4,415 (229)

Research on mechanical properties of HTPB propellants

Journal of Physics: Conference Series
Abstract Slat propellants with different sizes and shapes are designed to investigate the strength criteria of HTPB propellants. According to the calculation and simulation results, with the increase of multiple, the designed size slat specimens can achieve equivalent biaxial tensile stress ratios of 1:2, 1:2.5, 1:3, 1:3.5, and 1:4 under
Chang Liu, Zhiqiang Chang, Chao Li, Fujun He, Yake Wu   +4 more
openaire   +1 more source

Enhancement of the energetic performance of solid fuels with metal-fluoropolymer additives

FirePhysChem
Aluminum (Al) holds a pivotal role in augmenting the energetic potential of solid fuel formulations. Its incorporation can notably amplify the energy yield upon combustion.
Ayush Koul, Aparna Ojha, Prenav Vimal, Yash Pal, Sri Nithya Mahottamananda, Subha S, Djalal Trache   +6 more
doaj   +1 more source

Technical Assessments of Future European Space Transportation Options [PDF]

, 2007
The paper describes some of the most recent activities in Germany in the technical assessment of future European launcher architecture. In focus is a joint effort of DLR-SART with German launcher industry in the definition of a next generation upper ...
Dutheil, Jean-Philippe, Philip, Peter, Sippel, Martin, van Foreest, Arnold   +3 more
core  

Transient processes in the combustion of nitramine propellants [PDF]

A transient combustion model of nitramine propellants is combined with an isentropic compression shock formation model to determine the role of nitramine propellant combustion in DDT, excluding effects associated with propellant structural properties or ...
Cohen, N. S., Strand, L. D.
core   +1 more source

Performance evaluation of commercial copper chromites as burning rate catalyst for solid propellants [PDF]

, 2010
Copper chromites are well known as burning rate catalysts for the combustion of composite solid propellants, used as a source of energy for rocket propulsion.
Eunice Aparecida Campos, Koshun Iha, Luis Cláudio Rezende, Milton Faria Diniz, Rita de Cássia L. Dutra, Wilma Massae Dio Nawa   +5 more
core  

Модель гибридного ракетного двигателя. Вычисления, проект и испытания [PDF]

, 2009
На даний час і у майбутньому ракетні двигуни будуть найголовнішими засобами виводу на орбіту космічних транспортних апаратів. В даний час найважливішою вимогою при проектуванні двигуна ракети є зменшення її вартості і максимальне збільшення енерговіддачі.
Folusiak, M., Kindracki, J., Rarata, G., Surmacz, P., Swiderski, K., Wolanski, P.   +5 more
core  

Hybrid propulsion technology program. Volume 1: Conceptional design package [PDF]

A concept design study was performed to configure two sizes of hybrid boosters; one which duplicates the advanced shuttle rocket motor vacuum thrust time curve and a smaller, quarter thrust level booster.
Holzman, Allen L., Humphrey, John, Jensen, Gordon E., Keilbach, Joseph, Leisch, Steven O., Parsley, Randy   +5 more
core   +1 more source

Overview of 10 inch Diameter HTPB Hybrid Motor Testing with Liquid Oxygen at Stennis Space Center [PDF]

, 2005
To further explore the operation of hybrid rocket motors and to demonstrate the performance characteristics of the motor design Lockheed Martin funded research on a series of 10 inch diameter hybrid motors that produce less than 10 klbf sea level thrust.
Kearney, Darren, Knowles, Timothy E., Roberts, Ryan   +2 more
core   +1 more source

Ultrasonically Accelerated Nitration of Hydroxyl-Terminated Polybutadiene: Process Efficiency and Product Characterization

Eng
Hydroxyl-terminated polybutadiene (HTPB) is widely studied and the most used prepolymer for the binder system of composite solid propellants. A suitable functionalization of HTPB with energetic groups greatly improves the performance of the propellant ...
Ventsislav Bakov, Spaska Yaneva, Nadezhda Rangelova, Milko Berner, Damyan Ganchev, Nikolai Georgiev   +5 more
doaj   +1 more source

Synthesis of propellant grade HHTPB by hydrogenation of HTPB using Pd-activated charcoal as catalyst

FirePhysChem
To derive more performance from the conventional composite propellant based on hydroxyl-terminated polybutadiene (HTPB) and ammonium perchlorate (AP), it is envisaged to hydrogenate HTPB, which increases the H/C (hydrogen to carbon ratio) of the base ...
Ch. Devi Vara Prasad, P. Kanakaraju, R Vinu, Abhijit P Deshpande   +3 more
doaj   +1 more source