Selection of an Optimized Integrated Propulsion System

1981 ◽  
Vol 18 (6) ◽  
pp. 499-505 ◽  
Author(s):  
H. Macklis ◽  
R.L. Sackheim ◽  
B. Vogt
Keyword(s):  
Propulsion System ◽  
Selection Of

scholarly journals Selection of project structure for nanosatellite propulsion system

2019 ◽  
Vol 18 (3) ◽  
pp. 29-37 ◽  
Author(s):  
I. V. Belokonov ◽  
A. V. Ivliev ◽  
A. M. Bogatyrev ◽  
A. A. Kumarin ◽  
I. A. Lomaka ◽  
...  
Keyword(s):  
High Speed ◽  
Low Earth Orbit ◽  
Propulsion System ◽  
Working Fluid ◽  
Atmospheric Conditions ◽  
Velocity Change ◽  
Project Structure ◽  
System Prototype ◽  
Storage Units ◽  
Selection Of

This paper presents the results of theoretical and experimental research of a prototype of a propulsion system for periodical low-Earth orbit correction of research-and-educational nanosatellites. For that purpose, the prototype is to provide at least 20 m/s relative velocity for a 3U CubeSat with a mass not exceeding 4.5 kg. The personnel and environment safety were taken into account during testing and operation along with the ability to be launched as an associated payload by a “Soyuz”-series launch vehicle or from the ISS. An electro-thermal propulsion system (ResistoJet) was designed with “nonfreezing” mixture of ethanol and distilled water used as the working fluid. It is shown that a standard vehicle power system is capable of initiating one corrective thrust impulse per orbit with flight velocity change of about 0.1 m/s by introducing pulse energy storage units and allocating sufficient time for their charging in the flight profile. The propulsion system prototype was tested in atmospheric conditions. For that purpose shortened “atmospheric” nozzles were used. Testing was carried out using a zero-torque test-bench with high-speed cameras. The measured thrust value was in agreement with the calculated value of 44 mN.

Simulation of the Application of Pneumatic Propulsion Method in Tourist Submarine

2010 ◽  
Vol 43 ◽  
pp. 603-609
Author(s):  
Bin Cheng Li ◽  
Bing Han
Keyword(s):  
High Pressure ◽  
Thrust Force ◽  
Propulsion System ◽  
Air Motor ◽  
Oxygen System ◽  
Selection Of

In order to realize propulsion system and oxygen system of tourist submarines be secure, eco-friendly, efficient, reliable, economical, a combination of ordinary air motor and ACM high-pressure air bottle is adopted for providing propulsion and oxygen. The calculation and selection of the appropriate air motor and high-pressure bottle are based on the propulsive requirement of a tourist submarine. A model consists of high-pressure bottle, air motor, propeller and the resistance of the tourist submarine is established in SimulationX. The underwater speed and it’s duration are obtained through calculation as the rev, thrust force, torque of the propeller, etc. The possibility of application of pneumatic propulsion method in tourist submarine is analysed. Results illustrate that: on the premise of lightened quality of the propulsion system, pneumatic propulsion method fulfills the required underwater speed and it’s duration.

Propulsion System Considerations for the Subsonic V/STOL

1979 ◽  
Vol 101 (2) ◽  
pp. 228-232
Author(s):  
J. D. Cyrus ◽  
M. DeVillier ◽  
J. Kaminski
Keyword(s):  
Propulsion System ◽  
The Core ◽  
Lower Weight ◽  
Engine Version ◽  
The Cost ◽  
The Impact ◽  
Selection Of

A representative subsonic V/STOL aircraft operating on a single mission has been used as a baseline to investigate the impact of various propulsion system tradeoffs. After establishing a cycle for the propulsion system and estimating V/STOL related installation penalties, parametric engine-aircraft-mission studies have been conducted. These studies have established takeoff gross weight benefits of up to 13 percent that may be obtained by appropriate selection of the core engine sizing location. Studies of two, three and four engine versions of the configuration have shown that three engine and four engine aircraft may have 20 percent lower weight than a two engine version, but this arises at the cost of significantly reduced hot section life.

scholarly journals Review of Propulsion System Design Strategies for Unmanned Aerial Vehicles

2021 ◽  
Vol 11 (11) ◽  
pp. 5209
Author(s):  
Cinzia Amici ◽  
Federico Ceresoli ◽  
Marco Pasetti ◽  
Matteo Saponi ◽  
Monica Tiboni ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Working Conditions ◽  
Multidisciplinary Approach ◽  
Design Methods ◽  
Propulsion System ◽  
Design Strategies ◽  
Specific Content ◽  
Aerial Vehicles ◽  
Design Choice ◽  
Selection Of

The design of the propulsion system for Unmanned Aerial Vehicles (UAVs) demands an inclusive multidisciplinary approach from the earliest design phases, since every design choice strictly affects and is affected by the overall working conditions. This paper presents a review of the scientific literature focused on the design methods applied in defining and sizing the propulsion system of drones. The analysis, performed with a systematic approach, evaluated 123 papers according to two custom classification taxonomies, which investigated respectively the primary aim and specific content of the works. Finally, literature indications and hints were combined into an integrated framework for the functional design of the propulsion system of UAVs. The procedure aimed to support the designer in the preliminary selection of the propulsion candidates and the quick sizing of the supply system, during the first phases of the design process. According to the literature, design methods dramatically change depending on the expected applications and working conditions of UAVs, so that the detailed design of specific drone elements and propulsion components represents the focus of most of the papers in this field.

scholarly journals Study and Assessment of Propulsion Systems of Three-Wheeled Electric Powered Rickshaw in India

2021 ◽  
Vol 9 (8) ◽  
pp. 1111-1117
Keyword(s):  
Automobile Industry ◽  
Building Materials ◽  
Propulsion System ◽  
Propulsion Systems ◽  
Ic Engine ◽  
Crucial Step ◽  
Power Drive ◽  
Metropolitan Cities ◽  
Vital Component ◽  
Selection Of

India is one of the prominent manufacturers in the automobile industry with 30 Million of vehicles production rate. Most of vehicles manufactured in India utilize internal combustion power drive methodology. Additionally, pollutions, global warming, conventional fuels exhaustion and loss of building materials are the major concerns associated with IC engine technology. Electric drive technology has the potential to mitigate these issues. Three-wheeled (3-W) battery powered rickshaws/vehicles are primarily employed for public conveyance in the metropolitan cities of India. The motor (propulsion) is a vital component of 3-W battery powered rickshaw. But, selection of appropriate propulsion system for 3-W rickshaw is crucial step. In the present study, an exertion has been prepared to assess the correct propulsion system for 3-W battery powered vehicle in Indian contest.

scholarly journals Design and selection of a belt drive for an electric generator

2021 ◽  
Vol 1199 (1) ◽  
pp. 012042
Author(s):  
M Dudziak ◽  
G Domek
Keyword(s):  
Power Plant ◽  
Hydroelectric Power Plant ◽  
Propulsion System ◽  
Medium Size ◽  
Belt Drive ◽  
Hydroelectric Power ◽  
Power Generators ◽  
Electric Generator ◽  
Electric Generators ◽  
Selection Of

Abstract The issue of the selection of mechanical drive for medium size power generators was raised in the work. The issue begins with the analysis of the propulsion system in the hydroelectric power plant, in which the turbines were selected for the amount of water flowing and for these turbines electric generators. An overview of the available drive solutions pointed to belt transmissions, which must meet the task of transferring torque from the turbine to the generator. The solution must be durable, which is why the authors conducted a deep analysis of material issues and pointed to modern polymer strips that can meet the challenges posed.

scholarly journals A method for selection of parameters of ship propulsion system fitted with compromise screw propeller

2007 ◽  
Vol 14 (4) ◽  
pp. 3-6 ◽  
Author(s):  
Jan Michalski
Keyword(s):  
Optimization Problems ◽  
Mathematical Optimization ◽  
Stage Structure ◽  
Propulsion System ◽  
Design Stage ◽  
Design Parameters ◽  
Inland Waterways ◽  
Ship Propulsion ◽  
Screw Propeller ◽  
Selection Of

A method for selection of parameters of ship propulsion system fitted with compromise screw propeller This paper concerns an algorithmic method for preliminary selection of parameters of ship propulsion system fitted with fixed screw propeller in the case when the ship's operation is associated with significant changes of waterway depth and width, hull resistance of the ship and its service speed. Mathematical model arguments of the considered design problem are main ship design parameters identified in the preliminary design stage. Structure of the formulated model complies with formal requirements for continuous- discrete mathematical optimization problems. The presented examples of application of the method concern an inland waterways ship fitted with compromise screw propeller optimized in the sense of minimization of fuel consumption for passing a given route distance within a given time. The elaborated method may be especially useful in designing such ships as: coasters, inland waterways ships, tugs, pushers, trawlers, mine sweepers, icebreakers etc.

Selection of an optimized integrated propulsion system

1980 ◽  
Author(s):  
H. MACKLIS ◽  
R. SACKHEIM ◽  
B. VOGT
Keyword(s):  
Propulsion System ◽  
Selection Of

scholarly journals Influence evaluation of the ship propulsion system on the energy efficiency for small, medium and large container vessels

2021 ◽  
Vol 327 ◽  
pp. 02005
Author(s):  
Viktor Nikiforov ◽  
Irina Kostova
Keyword(s):  
Energy Efficiency ◽  
Maximum Energy ◽  
Propulsion System ◽  
Fuel Type ◽  
Proper Selection ◽  
Ship Propulsion ◽  
Harmful Emissions ◽  
Large Container ◽  
Marine Vessels ◽  
Selection Of

The transportation of goods worldwide has a vital meaning for the entire of humanity. The seaborne transport is considered to be the most efficient – economically and environmentally friendly way to convey large amount of goods when compared to the other transport options available. Marine vessels contribute for the carriage of about 90 percent of the worldwide trade and a significant part of the goods delivered by sea are performed by container vessels. Even considered as the most efficient way of transportation the negative aspects of the shipping should not be neglected. The fuels intended for the ship propulsion generating enormous amounts of Greenhouse gases (GHG) and harmful emissions which are directly released into the atmosphere. When it comes to Energy Efficiency of the ships, the proper selection of the propulsion system and the fuel type used are essential with regard to achieve the best values. In the current paper a diverse alternative propulsion system options in order to achieve maximum Energy Efficiency on various sizes of container vessels will be analyzed.

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