Results 11 to 20 of about 38,554 (239)

Reverse design of solid propellant grain based on deep learning: Imaging internal ballistic data

Defence Technology
The reverse design of solid rocket motor (SRM) propellant grain involves determining the grain geometry to closely match a predefined internal ballistic curve. While existing reverse design methods are feasible, they often face challenges such as lengthy
Lin Sun, Xiangyu Peng, Yang Liu, Shu Long, Weihua Hui, Ran Wei, Futing Bao   +6 more
doaj   +1 more source

Ignition and Combustion Characteristics of Aluminum Hydride-Based Kerosene Propellant

Aerospace
Aluminum hydride (AlH3) is a promising candidate for enhancing the combustion performance of liquid fuels due to its high energy density and exceptional hydrogen storage capacity.
Jiangong Zhao, Chenzhuo Hao, Yilun Liu, Yihao Fu, Wen Ao   +4 more
doaj   +1 more source

A Load-Carrying Capacity Evaluation Method for the Welded Joints of Rocket Engine Frame

Aerospace, 2023
The load-carrying capacities of welded joints need to be paid attention to in the design of the frame, which transfers the thrust generated by the rocket engine to the rocket body.
Yushan Gao, Shihui Huo, Peiyan Wang, Ping Zhang   +3 more
doaj   +1 more source

Research on the Design and Bidirectional Work Process of Metal Diaphragms in Small Double-Pulse Solid Rocket Motors

Aerospace
According to the requirements of the small double-pulse solid rocket motor, a compartmentalized isolation device has been designed. This device consists of a metal diaphragm and a support frame. An experimental study and numerical simulation were used to
Xueqin Du, Weihua Hui, Youwen Tan, Wen Feng, Yang Liu   +4 more
doaj   +1 more source

Multi-Objective Design Optimization of Solid Rocket Motors via Surrogate Modeling

Aerospace
To reduce the high computational cost and lengthy design cycles of traditional solid rocket motor (SRM) development, this paper proposes an efficient surrogate-assisted multi-objective optimization approach.
Xinping Fan, Ran Wei, Yumeng He, Weihua Hui, Weijie Zhao, Futing Bao, Xiao Hou, Lin Sun   +7 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

Development of Green Storable Hybrid Rocket Propulsion Technology Using 98% Hydrogen Peroxide as Oxidizer

Aerospace, 2021
This paper presents the development of indigenous hybrid rocket technology, using 98% hydrogen peroxide as an oxidizer. Consecutive steps are presented, which started with interest in hydrogen peroxide and the development of technology to obtain High ...
Adam Okninski, Pawel Surmacz, Bartosz Bartkowiak, Tobiasz Mayer, Kamil Sobczak, Michal Pakosz, Damian Kaniewski, Jan Matyszewski, Grzegorz Rarata, Piotr Wolanski   +9 more
doaj   +1 more source

Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots

Advanced Robotics Research, EarlyView.
This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou, Zhiqiang Chen, Yuanbiao Ma, Zhiqiang Tang, Qianqian Wang   +4 more
wiley   +1 more source

Fuel Grain Configuration Adaptation for High-Regression-Rate Hybrid Propulsion Applications

Aerospace
Low regression rate is the most critical issue for the development and application of hybrid rocket motors (HRMs). Paraffin-based fuels are potential candidates for HRMs due to their high regression rates but adding polymers to improve strength results ...
Lin-Lin Liu, Bo-Biao Li, Ze-Xin Chen, Song-Qi Hu   +3 more
doaj   +1 more source

Research in rocket and jet propulsion [PDF]

, 1950
When considering the problems of basic research in rocket and jet propulsion, it is profitable to keep in mind the salient features of rocket- and jet-propulsion engineering.
Tsien, Hsue-Shen
core