Results 21 to 30 of about 71,257 (331)

Exploring three-dimensional edge-based smoothed finite element method based on polyhedral mesh to study elastic mechanics problems

Xibei Gongye Daxue Xuebao, 2021
This paper established the three-dimensional edge-based smoothed finite element method(ES-FEM) based on polyhedral mesh, divided the smoothed domain, constructed the shape function and derived the geometric matrix and the stiffness matrix.

doaj   +1 more source

Effect of Secondary Combustion on Thrust Regulation of Gas Generator Cycle Rocket Engine

Applied Sciences, 2022
Thrust regulation is applied to maintain the performance of the liquid propellant rocket engine. The thrust level of a rocket engine can be readily controlled by adjusting the number of propellants introduced into the combustion chamber. In this study, a
Sohaib Khan, Muhammad Umer Sohail, Ihtzaz Qamar, Muzna Tariq, Raees Fida Swati   +4 more
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Technology of computational analysis of the working process parameters of low-thrust rocket engines running on gaseous oxygen-hydrogen fuel with the use of ANSYS CFD

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The paper presents the description of a mathematical model of the working process of a low-thrust rocket engine operating on gaseous oxygen-hydrogen fuel and some fragments of the technology of computational analysis of distribution of gas-dynamic ...
V. V. Ryzhkov, I. I. Morozov
doaj   +1 more source

Comparative Analysis of Real-Time Fault Detection Methods Based on Certain Artificial Intelligent Algorithms for a Hydrogen–Oxygen Rocket Engine

Aerospace, 2022
The real-time fault detection and diagnosis algorithm of a liquid rocket engine is the basis of online reconfiguration of guidance and the control system of a launch vehicle, which is directly related to the success or failure of space mission.
Peihao Huang, Tao Wang, Lin Ding, Huhuang Yu, Yong Tang, Dianle Zhou   +5 more
doaj   +1 more source

A Review of Recent Developments in Hybrid Rocket Propulsion and Its Applications

Aerospace
This paper extensively reviews hybrid rocket propulsion-related activities from combustion engine designs to launch tests. Starting with a brief review of rocket propulsion development history, a comparison among the three bi-propellant rocket propulsion
Shih-Sin Wei, Meng-Che Li, Alfred Lai, Tzu-Hao Chou, Jong-Shinn Wu   +4 more
doaj   +1 more source

Macroscopic and mesoscopic properties of HTPB propellant under low temperature dynamic biaxial compression loading

Polymer Testing, 2023
In order to study the macroscopic mechanical properties and meso damage mechanism of solid fuel hydroxy-terminated polybutadiene (HTPB) propellant under low temperature and dynamic biaxial compression loading, the INSTRON high strain rate hydraulic ...
Tingjing Geng, Hongfu Qiang, Zhejun Wang, Xueren Wang, Zhaojun Zhu, Dong Qiao   +5 more
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Efficiency Analysis and Integrated Design of Rocket-Augmented Turbine-Based Combined Cycle Engines with Trajectory Optimization

Energies, 2020
An integrated analysis method for a rocket-augmented turbine-based combined cycle (TBCC) engine is proposed based on the trajectory optimization method of the Gauss pseudospectral. The efficiency and energy of the vehicles with and without the rocket are
Feng Guo, Wenguo Luo, Feng Gui, Jianfeng Zhu, Yancheng You, Fei Xing   +5 more
doaj   +1 more source

Remaining Useful Life Prediction of Lithium-Ion Batteries Based on a Cubic Polynomial Degradation Model and Envelope Extraction

Batteries, 2023
Remaining useful life (RUL) prediction has become one of the key technologies for reducing costs and improving safety of lithium-ion batteries. To our knowledge, it is difficult for existing nonlinear degradation models of the Wiener process to describe ...
Kangze Su, Biao Deng, Shengjin Tang, Xiaoyan Sun, Pengya Fang, Xiaosheng Si, Xuebing Han   +6 more
doaj   +1 more source

Development of Kabila rocket: A radioisotope heated thermionic plasma rocket engine

Chinese Journal of Aeronautics, 2015
AbstractA new type of plasma rocket engine, the Kabila rocket, using a radioisotope heated thermionic heating chamber instead of a conventional combustion chamber or catalyst bed is introduced and it achieves specific impulses similar to the ones of conventional solid and bipropellant rockets.
Kalomba Mboyi, Junxue Ren, Yu Liu
openaire   +2 more sources

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

Advanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source