Results 11 to 20 of about 38,780 (255)

Multi-Objective, Multi-Disciplinary Design Optimization and Multi-Attribute Evaluation of Hybrid Rocket Motors Used for Manned Lunar Lander

Aerospace, 2023
This paper proposed a multi-objective, multi-disciplinary design optimization and multi-attribute evaluation method for the manned lunar lander descent stage.
Yang Liu, Xintong Li, Pengcheng Wang, Xiaotian Zhang, Hao Zhu, Guobiao Cai   +5 more
doaj   +1 more source

Deuterium microbomb rocket propulsion [PDF]

Acta Astronautica, 2010
12 pages, 4 ...
openaire   +3 more sources

A Concept for Striking Range Improvement of the GROM/PIORUN Man-Portable Air-Defence System [PDF]

Problemy Mechatroniki, 2017
This paper presents a concept for striking distance performance improvement of the GROM/PIORUN Man-Portable Air-Defence System rocket missiles by increasing the rated diameter of the rocket missile propulsion system and its fuel charge weight.
Krzysztof MOTYL, Mirosław MAKOWSKI, Bogdan ZYGMUNT, Zbigniew PUZEWICZ, Janusz NOGA   +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

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

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

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

Characterization of nal powders for rocket propulsion [PDF]

Progress in Propulsion Physics, 2011
Nanosized metal powders are known to significantly improve both solid and hybrid rocket performance, but have some drawbacks in terms of cost, safety, and possible influence on propellant mechanical properties. Performance enhancement through nanosized metal or metal hydride addition to solid fuels is currently under investigation also for hybrid ...
MEROTTO, LAURA, GALFETTI, LUCIANO, COLOMBO, GIOVANNI, DE LUCA, LUIGI   +3 more
openaire   +3 more sources

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

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