Results 41 to 50 of about 63,437 (256)

A laser-microfabricated electrohydrodynamic thruster for centimeter-scale aerial robots [PDF]

open access: yesPLoS ONE, 2019
To date, insect scale robots capable of controlled flight have used flapping-wings for generating lift, but this requires a complex and failure-prone mechanism.
Elma Dedic   +4 more
semanticscholar   +1 more source

Multiparameter Collaborative Optimization and Analysis of the Non-Penetrating Tunnel Thruster

open access: yesJournal of Marine Science and Engineering
A brand new non-penetrating tunnel thruster (short for NPT thruster) is proposed in this paper. The tunnel structural parameters of the thruster are optimized, and the performance and optimization effect are verified by experiments. First, the design and
Jinyu Guo   +5 more
doaj   +1 more source

Modelling Rocket System Performance Parameters

open access: yesAcademy Journal of Science and Engineering, 2022
What distinguishes the rocket system from airbreathing engines is that the rocket carries its own propellants, fuel and oxidants.  The modern rocket was originally developed for ballistic missiles.
Nnorom Achara
doaj  

Thruster sealing system and apparatus [PDF]

open access: yes, 1992
A thruster nozzle sealing system and apparatus is provided for protection of spacecraft thruster motors. The system includes a sealing plug, a sealing plug insertion tool, an outer cover, an outer cover attachment, and a ferry flight attachment.
Svejkovsky, Paul A.
core   +1 more source

Self consistent kinetic simulations of SPT and HEMP thrusters including the near-field plume region

open access: yes, 2009
The Particle-in-Cell (PIC) method was used to study two different ion thruster concepts - Stationary Plasma Thrusters (SPT) and High Efficiency Multistage Plasma Thrusters (HEMP-T), in particular the plasma properties in the discharge chamber due to the ...
Kalentev, O.   +6 more
core   +1 more source

Hydrodynamic Analysis-Based Modeling and Experimental Verification of a New Water-Jet Thruster for an Amphibious Spherical Robot

open access: yesItalian National Conference on Sensors, 2019
Thrusters are the bottom actuators of the amphibious spherical robot, and play an important role in the motion control of these robots. To realize accurate motion control, a thrust model for a new water-jet thruster based on hydrodynamic analyses is ...
Xihuan Hou   +8 more
semanticscholar   +1 more source

System analysis and test-bed for an atmosphere-breathing electric propulsion system using an inductive plasma thruster [PDF]

open access: yesActa Astronautica, 2018
Challenging space mission scenarios include those in low altitude orbits, where the atmosphere creates significant drag to the S/C and forces their orbit to an early decay.
F. Romano   +5 more
semanticscholar   +1 more source

PROBE AND SPECTRAL INVESTIGATIONS OF ELECTRIC PROPULSION HALL EFFECT THRUSTER

open access: yesАвіаційно-космічна техніка та технологія, 2017
The work is devoted to the study of a low-power Hall Effect Thruster. The currency of developing and increasing of integral characteristics of Hall Effect Thruster with power consumption less 0,3 kW is substantiated. The main directions of low-power Hall
Сергей Николаевич Кулагин
doaj   +1 more source

Numerical simulation and experimental research of LRIT-30 radio frequency ion thruster

open access: yesAIP Advances, 2021
This study aimed at discussing the laws of the design parameters of a radio frequency (RF) ion thruster that influence the thruster performance, guide the performance optimization-oriented design of the thruster, and realize the high-accuracy continuous ...
Yanxu Pu   +7 more
doaj   +1 more source

A Computational Multiphysics Study of a Satellite Thruster

open access: yesEngineering Proceedings
This work concerns a study of the thermomechanical behaviour of a commercial thruster for aerospace use. The thruster, operated using a bipropellant liquid mixture, is used for the motion and in-orbit altitude control of small telecommunications ...
Marcello A. Lepore   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy