scholarly journals NEXT Ion Propulsion System Configurations and Performance for Saturn System Exploration

2007 ◽  
Author(s):  
Scott Benson ◽  
John Riehl ◽  
Steven Oleson
Keyword(s):  
Propulsion System ◽  
Ion Propulsion ◽  
And Performance ◽  
System Configurations

Establishing Cruise-Engine Cycle Payoffs for a Supersonic VSTOL Aircraft

1982 ◽  
Vol 104 (2) ◽  
pp. 314-319
Author(s):  
J. D. Cyrus ◽  
P. F. Piscopo ◽  
R. T. Lazarick
Keyword(s):  
Sensitivity Analysis ◽  
Propulsion System ◽  
Physical Constraints ◽  
Engine Component ◽  
Component Efficiency ◽  
And Performance ◽  
System Configurations ◽  
The Impact ◽  
Engine Cycle

Engine-aircraft mission studies have been conducted by the Navy to establish changes in the weight and performance of supersonic VSTOL aircraft resulting from changes in the main cruise engine configuration, cycle characteristics, and complexity. The effects of engine component efficiency variations were quantified by a sensitivity analysis which identified performance changes on four different missions for a single engine aircraft. Studies of a twin engine aircraft with four different propulsion system configurations established the impact of changes in various cycle parameters on aircraft takeoff gross weight for the same three missions and identified thermodynamic and physical constraints for the cycles.

Establishing Cruise-Engine Cycle Payoffs for a Supersonic VSTOL Aircraft

1981 ◽  
Author(s):  
J. D. Cyrus ◽  
P. F. Piscopo ◽  
R. T. Lazarick
Keyword(s):  
Sensitivity Analysis ◽  
Propulsion System ◽  
Physical Constraints ◽  
Engine Component ◽  
Component Efficiency ◽  
And Performance ◽  
System Configurations ◽  
The Impact ◽  
Engine Cycle

Engine-aircraft-mission studies have been conducted by the Navy to establish changes in the weight and performance of supersonic VSTOL aircraft resulting from changes in the main cruise engine configuration, cycle characteristics, and complexity. The effects of engine component efficiency variations were quantified by a sensitivity analysis which identified performance changes on four different missions for a single engine aircraft. Studies of a twin engine aircraft with four different propulsion system configurations established the impact of changes in various cycle parameters on aircraft takeoff gross weight for the same three missions and identified thermodynamic and physical constraints for the cycles.

Analog Study and Performance of the New 440-Ft Ferries for the State of Washington

1975 ◽  
Vol 12 (02) ◽  
pp. 146-162
Author(s):  
J. A. Beverley ◽  
R. L. Koch ◽  
E. C. Stewart ◽  
J. Weiks
Keyword(s):  
System Performance ◽  
The State ◽  
Design Tool ◽  
Propulsion System ◽  
Similar Data ◽  
Electrical System ◽  
And Performance ◽  
Analog Study ◽  
Walla Walla

This paper describes the ac-rectified dc propulsion system designed for the two ferry vessels, MV Spokane and MV Walla Walla, and reports the results of an analog study conducted as a design tool. Similar data are presented showing the results obtained by recording electrical system performance during builder's trials.

Study and Simulation on the Energy Efficiency Management Control Strategy of Ship Based on Clean Propulsion System

2015 ◽  
Author(s):  
Kai Wang ◽  
Xinping Yan ◽  
Yupeng Yuan
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Control Strategy ◽  
Control Strategies ◽  
Management Control ◽  
Propulsion System ◽  
Power Requirement ◽  
Doubly Fed ◽  
System Configurations ◽  
And Control

Nowadays, with the higher voice of ship energy saving and emission reduction, the research on energy efficiency management is particularly necessary. Energy efficiency management and control of ships is an effective way to improve the ship energy efficiency. In this paper, according to the new clean propulsion system configurations of 5000 tons of bulk carrier, the energy efficiency management control strategy of the clean propulsion system is designed based on the model of advanced brushless doubly-fed shaft generator, propulsion system using LNG/diesel dual fuel engine and energy consumption of the main engine for reducing energy consumption. The simulation model of the entire propulsion system and the designed control strategy were designed. The influence of the engine speed on the ship energy efficiency was analyzed, and the feasibility of the energy efficiency management control strategies was verified by simulation using Matlab/Simulink. The results show that the designed strategies can ensure the power requirement of the whole ship under different conditions and improve the ship energy efficiency and reduce CO2 emissions.

High Speed Locomotive Development: A European Experience

2010 ◽  
Author(s):  
Janis Vitins
Keyword(s):  
Power Unit ◽  
High Speed ◽  
Propulsion System ◽  
European Experience ◽  
History Of ◽  
And Performance

Europe has a long history of high speed locomotive and power unit development. This paper focuses on these developments in Sweden, Germany, Switzerland and Spain starting from high speed locomotives for 125 mph and ending with the AVE S112 high speed power unit for 206 mph. The major technical objectives starting in the 1970’s were to increase the speed and performance, while reducing the axle load from typically 21t at 125 mph to 17t at ≥ 156 mph. Developments of the propulsion system and vehicle concepts took place in many incremental steps, constantly improving the performance of high speed services. It is shown how American high speed locomotives relate to these developments and how one can learn from the European experience going forward.

scholarly journals Construction and performance analysis of data warehouse based on ship propulsion system

2021 ◽  
Vol 248 ◽  
pp. 01060
Author(s):  
Qi Hu ◽  
Yutao Chen ◽  
Yuqian He
Keyword(s):  
Data Warehouse ◽  
Visual Analysis ◽  
Hydrodynamic Characteristic ◽  
Propulsion System ◽  
Multidimensional Analysis ◽  
Hydrodynamic Characteristics ◽  
Soft Sensing ◽  
Ship Propulsion ◽  
System Data ◽  
And Performance

A large number of operation data will be generated in the process of ship propulsion system operation. Aiming at the processing, analysis and application of these operation data, a data warehouse for propulsion system is constructed based on the operation data of a ship, and the multidimensional analysis and result display of data are realized by combining OLAP technology with visual analysis software tableau. On the basis of the data warehouse, the soft sensing of parameters is applied to the data warehouse. Based on the soft sensing data, the hydrodynamic characteristics of the propeller are studied, and the hydrodynamic characteristic curves of the propeller are obtained. The research of ship propulsion system based on data warehouse provides support for the comprehensive information of propulsion system data.

Sign in / Sign up

Export Citation Format

Share Document