scholarly journals EVALUATION OF VESSEL SIMULATION MODEL COMPATIBILITY WITH ITS EQUIVALENT IN REALITY

2013 ◽  
Vol 20 (1) ◽  
pp. 163-170
Author(s):  
Piotr Zwolan ◽  
Krzysztof Czaplewski
Keyword(s):  
Simulation Model ◽  
Navigation Systems ◽  
Safety Level ◽  
Complex Simulation ◽  
Weather Stations ◽  
Verification Process ◽  
Method Of Assessment ◽  
Bodies Of Water ◽  
Simulation Systems ◽  
Inertial Systems

ABSTRACT Complex simulation systems are often used in order to enhance the safety level on newly designed navigation areas and to facilitate their verification process. The application of these systems supersedes older methods based on manoeuvring basins, wherein models minified in particular scales were used. Modern methods are definitely cheaper and require less work. The paper presents the method of assessment of the compatibility of a ship simulation model with its real counterpart. Access to the simulator’s components responsible for creating and editing bodies of water as well as ship models gives the possibility of their verification. Using cutting-edge navigation systems such as inertial systems, weather stations and GPS gives the possibility of obtaining indispensable information about ship’s behaviour under certain hydro-meteorological conditions.

Mechanical Performance Simulation Model Based on PDM

2013 ◽  
Vol 300-301 ◽  
pp. 32-35
Author(s):  
Xiao Wen Zeng ◽  
Cheng Zeng ◽  
Bing Han
Keyword(s):  
Simulation Model ◽  
Mechanical Performance ◽  
Product Structure ◽  
Dynamics Simulation ◽  
Simulation Data ◽  
Performance Simulation ◽  
Collaborative Simulation ◽  
Complex Simulation ◽  
Mechanical Dynamics ◽  
Relationship Of

In order to manage the complex simulation data management in the process of mechanical dynamics simulation, a new management model was presented which is Performance Simulation Model(PSM). The model was based on PDM product structure and the concepts and elements of PSM were defined in this paper. Furthermore, the functional framework of PSM was proposed which based on the hierarchical relationship of product structure and the data stream relationship of data structure matrix. Finally, PSM was applied on ship planetary reducer collaborative simulation platform. The result indicates that the simulation data in mechanical collaborative simulation are managed by PSM, and the problem of interaction between collaborative simulation and PDM is solved.

scholarly journals Model Driven Combat Effectiveness Simulation Systems Engineering

2020 ◽  
Vol 70 (1) ◽  
pp. 54-59
Author(s):  
Zhi Zhu ◽  
Yonglin Lei ◽  
Yifan Zhu
Keyword(s):  
Decision Making ◽  
Simulation Model ◽  
Conceptual Model ◽  
Systems Engineering ◽  
Simulation Models ◽  
Proof Of Concept ◽  
Model Driven Engineering ◽  
Model Driven ◽  
Combat Effectiveness ◽  
Simulation Systems

Model-driven engineering has become popular in the combat effectiveness simulation systems engineering during these last years. It allows to systematically develop a simulation model in a composable way. However, implementing a conceptual model is really a complex and costly job if this is not guided under a well-established framework. Hence this study attempts to explore methodologies for engineering the development of simulation models. For this purpose, we define an ontological metamodelling framework. This framework starts with ontology-aware system conceptual descriptions, and then refines and transforms them toward system models until they reach final executable implementations. As a proof of concept, we identify a set of ontology-aware modelling frameworks in combat systems specification, then an underwater targets search scenario is presented as a motivating example for running simulations and results can be used as a reference for decision-making behaviors.

An American Omega Navigation Evaluation Programme 1975–1977

1977 ◽  
Vol 30 (3) ◽  
pp. 352-358
Author(s):  
P. R. J. Reynolds
Keyword(s):  
Computer Navigation ◽  
Remaining Useful Life ◽  
Navigation Systems ◽  
Evaluation Programme ◽  
Signal Coverage ◽  
Useful Life ◽  
General Object ◽  
Economic Considerations ◽  
Inertial Systems ◽  
Critical Aspects

As a replacement for the Loran A systems installed on approximately fifty B-707/300 aircraft and to have this replacement fully operational by the end of 1977 only two options were available: the very well proven but relatively costly inertial systems and the almost totally unproven but potentially much less costly Omega. Economic considerations played a major role in this choice in view of the limited remaining useful life of the aircraft involved. The general object of the programme was to assess the acceptability of Omega as a pilot-operated substitute for Loran A in aircraft also equipped with dual doppler/computer navigation systems. Critical aspects of the use of Omega which were to be investigated were:(i) the availability of adequate Omega signal coverage on a reasonably worldwide basis,(ii) the normal in-lane accuracy of the Omega position output,(iii) the in-lane stability of the Omega position output, i.e. susceptibility to ‘lane-slip’,(iv) the reliability of the airborne Omega hardware,(v) the operational suitability of the control/display units.

scholarly journals Web Delivery of a Monte Carlo Simulation Model: The Base and Yield Analyzer Experience

2005 ◽  
Vol 37 (2) ◽  
pp. 425-431 ◽  
Author(s):  
James W. Richardson ◽  
Joe L. Outlaw
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Simulation Model ◽  
World Wide ◽  
Research Effort ◽  
Farm Bill ◽  
Complex Simulation ◽  
The World ◽  
The Web ◽  
Monte Carlo Simulation Model

The provision for producers to update base acres and payment yields in the 2002 farm bill afforded an opportunity to test whether it was feasible to deliver a complex simulation model directly to producers. A Monte Carlo simulation model for assessing the economic impacts of the alternative base and yield options on individual farms was developed and made available to producers via the World Wide Web. The experiences and challenges from this collaborative extension and research effort are described, as well as the issues educators might consider before delivering complex software to a national audience via the Web.

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