Results 21 to 30 of about 2,431 (261)

Agglomerate Size Evolution in Solid Propellant Combustion under High Pressure

Aerospace, 2023
Solid propellant combustion and flow are significantly affected by condensed combustion products (CCPs) in solid rocket motors. A new aluminum agglomeration model is established using the discrete element method, considering the burning rate and ...
Songchen Yue, Lu Liu, Huan Liu, Yanfeng Jiang, Peijin Liu, Aimin Pang, Guangxue Zhang, Wen Ao   +7 more
doaj   +1 more source

THE PROBLEM OF THE OPTIMIZATION THE DESIGN PARAMETERS AND CONTROL PROGRAMS OF THE CONTROLLED ROCKET WITH SOLID PROPELLANT ROCKET ENGINE

Авіаційно-космічна техніка та технологія, 2017
The complex problem of the simultaneous optimization of the control programs and design parameters of the controlled single-stage rocket with cruise solid propellant rocket engine is formulated.
Светлана Васильевна Сюткина-Доронина
doaj   +1 more source

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, Andrzej CHOLEWIAK, Marek BIAŁEK   +2 more
doaj   +1 more source

Ageing studies on AP/HTPB based composites solid propellants

Energetic Materials Frontiers, 2021
Components of solid rocket motor that are susceptible to ageing are propellant, insulator, inhibitor, interfaces, igniter system, and seals. Seals, insulator, ignition systems are replaceable but the motor would be recast when the deterioration in ...
Hamza Naseem, Jyothsna Yerra, H. Murthy, P.A. Ramakrishna   +3 more
doaj   +1 more source

A Review on Residual Solid Propellant Disposal Methods Using HRIM, RISK Score Matrix, Safety Consequence Analysis and Environmental Impact Analysis

International Journal of Occupational Safety and Health, 2022
Introduction: Solid propellants are high energetic materials used for Launch vehicles and military applications. During solid propellant processing residual propellant generates due to less pot life, machining for insulation lining, scaled and sub ...
Meikandan Megaraj, Nancy Grace N
doaj   +1 more source

A Step-by-Step Equivalent Microprediction Method for the Mechanical Properties of Composite Solid Propellants considering Dewetting Damage

International Journal of Aerospace Engineering, 2022
Reliable prediction of the macromechanical properties of composite solid propellants in the microscale can accelerate the development of propellants with high mechanical properties.
Huiru Cui, Xuan Lv, Yurong Xu, Zhiwen Zhong, Zixiang Zhou, Weili Ma   +5 more
doaj   +1 more source

Using the Impulse Method to Determine High-Pressure Dynamic Burning Rate of Solid Propellants

Aerospace, 2023
A new method for determining the burning rate of a solid propellant, called the Impulse Method, is proposed in this paper. It is based on the proportional relationship between the impulse generated and the mass of the burned propellant. The pressure–time
Jiahao Liu, Yinghong Wang, Xinyang Li, Junhao Cong   +3 more
doaj   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Cryogenic propellant management in space: open challenges and perspectives

npj Microgravity
This paper presents open challenges and perspectives of propellant management for crewed deep space exploration. The most promising propellants are liquid hydrogen and liquid methane, together with liquid oxygen as an oxidizer. These fluids remain liquid
Alessia Simonini, Michael Dreyer, Annafederica Urbano, Francesco Sanfedino, Takehiro Himeno, Philipp Behruzi, Marc Avila, Jorge Pinho, Laura Peveroni, Jean-Baptiste Gouriet   +9 more
doaj   +1 more source

Simulation Analysis of the Safety of High-Energy Hydroxyl-Terminated Polybutadiene (HTPB) Engine under the Impact of Fragments

Crystals, 2023
The safety of solid rocket engine use seriously affects the survivability and combat effectiveness of weaponries. To study the engine safety against fragment in complex battlefield environments, the fragment impact safety simulation study of a high ...
Zheng Liu, Jianxin Nie, Wenqi Fan, Jun Tao, Fan Jiang, Tiejian Guo, Kun Gao   +6 more
doaj   +1 more source