Training Simulator Design for a Marine Engine Room at Different Levels of Fidelity

1983 ◽  
Vol 27 (12) ◽  
pp. 1001-1005
Author(s):  
T. Govindaraj ◽  
Yuan-Liang Su
Keyword(s):  
Complex System ◽  
Supervisory Control ◽  
Control Mode ◽  
Training Simulator ◽  
Marine Engine ◽  
Engine Room ◽  
Simulator Design ◽  
Marine Engineering ◽  
Different Levels ◽  
Engineering Personnel

A marine powerplant on a large supertanker is a complex system made up of a number of interconnected subsystems where most functions are automated. A human operator manages the system in supervisory control mode, intervening only when an event occurs requiring his action to restore normal operations. For training marine engineering personnel to detect, diagnose, and compensate for failures, simulators at different fidelity levels are being developed. A low fidelity simulator uses information displayed on an Apple II computer terminal in conjunction with system schematics provided on paper. Details of the low fidelity simulator are described, and the results of a pilot experiment are discussed.

Organization of supervisory control in scenarios of extreme robotics

2020 ◽  
Vol 8 (4) ◽  
pp. 245-258
Author(s):  
Ekaterina Smirnova ◽  
Boris Spassky
Keyword(s):  
Supervisory Control ◽  
Critical Infrastructure ◽  
Search And Rescue ◽  
Control Mode ◽  
Special Operations ◽  
Control Functions ◽  
Current Scenario ◽  
Monitoring And Diagnostics ◽  
Different Levels ◽  
Control Implementation

The article describes the general principles of supervisory control organization in extreme robotics scenarios with different levels of autonomy. It is shown that increasing the level of autonomy of the robot allows reducing the operator’s load due to the division of labor between man and machine and to the implementation of the supervisory control mode, the essence of which is the decomposition of the mission into scenarios, which describe algorithms for solving functionally completed tasks and consists of sequence of simple technological operations. Such scenarios are executed automatically. In this case, the operator mainly implements the functions of monitoring and diagnostics, and the control functions are reduced to making decisions about the execution of the next scenario or intervention into execution of the current scenario in cases when the robot makes an obvious mistake or encounters a problem that it cannot solve on its own. Examples of supervisory control implementation when performing work on critical infrastructure facilities, performing search and rescue and other special operations under challenging conditions, including those of heterogeneous groups of robots, are given.

THE RE-DESIGN OF A MARINE ENGINE ROOM SIMULATOR IN CONSIDERATION TO ERGONOMICS DESIGN PRINCIPLES

2021 ◽  
Vol 161 (A1) ◽  
Author(s):  
G Kocak
Keyword(s):  
Engineering Education ◽  
Design Principles ◽  
Simulator Training ◽  
Marine Engine ◽  
The Real ◽  
Engine Room ◽  
Technical University ◽  
Marine Engineering ◽  
Board Ship ◽  
Applied Ergonomics

Simulators can be used as sophisticated, flexible and realistic training tools which are capable of meeting many of the designated functions and tasks. An engine room simulator consists of simulation of various machinery systems in the engine room of a ship. This type of simulator is very significant and compulsory for marine engineering education. Istanbul Technical University Maritime Faculty (ITUMF) obtained a set of full-mission simulator and workstation simulators in 2001. However, it was realized that the ergonomic principles were not applied properly. Therefore it was not possible to generate the real engine room conditions with this simulator due to lack of some operations and displays on the mimic panel. Some of the mimics and displays were not similar to ones on board ship. This situation was negatively affecting the performance of engine room simulator training. And the mimic panel was re-designed and installed in 2006. In this study, the ergonomics principles for designing a mimic panel are determined and the application of ergonomic principles to a mimic panel is explained. The ergonomic gains of applied ergonomics principles are mentioned. Even more the effects on the marine engineering education are stated.

The Re-Design of a Marine Engine Room Simulator in Consideration to Ergonomics Design Principles

2019 ◽  
Vol 161 (A1) ◽  
Keyword(s):  
Engineering Education ◽  
Design Principles ◽  
Simulator Training ◽  
Marine Engine ◽  
The Real ◽  
Engine Room ◽  
Technical University ◽  
Marine Engineering ◽  
Board Ship ◽  
Applied Ergonomics

Simulators can be used as sophisticated, flexible and realistic training tools which are capable of meeting many of the designated functions and tasks. An engine room simulator consists of simulation of various machinery systems in the engine room of a ship. This type of simulator is very significant and compulsory for marine engineering education. Istanbul Technical University Maritime Faculty (ITUMF) obtained a set of full-mission simulator and workstation simulators in 2001. However, it was realized that the ergonomic principles were not applied properly. Therefore it was not possible to generate the real engine room conditions with this simulator due to lack of some operations and displays on the mimic panel. Some of the mimics and displays were not similar to ones on board ship. This situation was negatively affecting the performance of engine room simulator training. And the mimic panel was re-designed and installed in 2006. In this study, the ergonomics principles for designing a mimic panel are determined and the application of ergonomic principles to a mimic panel is explained. The ergonomic gains of applied ergonomics principles are mentioned. Even more the effects on the marine engineering education are stated.

Application of an Improved Colored Petri Net Modeling Method in Certain Missile Training System

2015 ◽  
Vol 742 ◽  
pp. 330-334
Author(s):  
Chun Jian Wang ◽  
Wei Yue ◽  
Hai Yan Ji
Keyword(s):  
Complex System ◽  
Petri Net ◽  
Time Use ◽  
Training System ◽  
New Method ◽  
Mathematics Model ◽  
Research Approach ◽  
Complex Environments ◽  
Training Simulator ◽  
First Time

In allusion to the need of analyzing complex system, we have proposed a method named multi-grade color Petri net. We for the first time use this new method to analyze a missile training simulator system. This model can accurately reflect the complex environments of the system and avoid the difficulty occurring often in developing accurate mathematics model by using classical research approach.

scholarly journals Self Control and Server-Supervisory Control for Multiple Mobile Robots and its Applicability to Intelligent DNC System

Robotics ◽  
2013 ◽  
pp. 375-390
Author(s):  
F. Nagata ◽  
T. Yamashiro ◽  
N. Kitahara ◽  
A. Otsuka ◽  
K. Watanabe ◽  
...  
Keyword(s):  
Mobile Robots ◽  
Control Systems ◽  
Supervisory Control ◽  
Low Cost ◽  
Self Control ◽  
Control Mode ◽  
Actual System ◽  
Multiple Mobile Robots ◽  
Collective Behaviors ◽  
Nc Machine

Multiple mobile robots with six PSD (Position Sensitive Detector) sensors are designed for experimentally evaluating the performance of two control systems. They are self-control mode and server-supervisory control mode. The control systems are considered to realize swarm behaviors such as Ligia exotica. This is done by using only information of PSD sensors. Experimental results show basic but important behaviors for multiple mobile robots. They are following, avoidance, and schooling behaviors. The collective behaviors such as following, avoidance, and schooling emerge from the local interactions among the robots and/or between the robots and the environment. The objective of the study is to design an actual system for multiple mobile robots, to systematically simulate the behaviors of various creatures who form groups such as a school of fish or a swarm of insect. Further, the applicability of the server-supervisory control scheme to an intelligent DNC (Direct Numerical Control) system is briefly considered for future development. DNC system is an important peripheral apparatus, which can directly control NC machine tools. However, conventional DNC systems can neither deal with various information transmitted from different kinds of sensors through wireless communication nor output suitable G-codes by analyzing the sensors information in real time. The intelligent DNC system proposed at the end of the chapter aims to realize such a novel and flexible function with low cost.

scholarly journals Design of Supervisory Control for Speed Control of Wind Turbine using Torque-Control Method Based on Buck Converter

2020 ◽  
Vol 190 ◽  
pp. 00019
Author(s):  
Katherin Indriawati ◽  
Choirul Mufit ◽  
Andi Rahmadiansah
Keyword(s):  
Wind Turbine ◽  
Wind Turbines ◽  
Supervisory Control ◽  
Control Method ◽  
Speed Control ◽  
Buck Converter ◽  
Torque Control ◽  
Control Mode ◽  
Rotor Speed ◽  
Integral Control

The variation of wind speed causes the electric power generated by the turbine also varies. To obtain maximum power, the rotor speed of wind turbines must be optimally rated. The rotor speed can be controlled by manipulating the torque from the generator; this method is called Torque Control. In that case, a DC-DC converter is needed as the control actuator. In this study, a buck converter-based supervisory control design was performed on the Horizontal-axis wind turbines (HAWT). Supervisory control is composed of two control loops arranged in cascade, and there is a formula algorithm as the supervisory level. The primary loop uses proportional control mode with a proportional gain of 0.3, whereas in the secondary loop using proportional-integral control mode with a proportional gain of 5.2 and an integral gain of 0.1. The Supervisory control has been implemented successfully and resulted in an average increase in turbine power of 4.1 % at 5 m s–1 and 10.58 % at 6 m s–1 and 11.65 % at 7 m s–1, compared to wind turbine systems without speed control.

The Development of Interactive Marine Incinerator Operational Training System Based on Web3D

2014 ◽  
Vol 989-994 ◽  
pp. 4277-4280
Author(s):  
Wen Long Yao
Keyword(s):  
Real Time ◽  
Training System ◽  
System Structure ◽  
Equipment Management ◽  
Time Interaction ◽  
Engine Room ◽  
Training Mode ◽  
New Type ◽  
Marine Engineering ◽  
Engineering Training

In this paper, the design scheme, technical route and system structure of the interactive marine incinerator operation training system based on Web3D are proposed based on the study of the marine engine room simulator project. The virtual reality technique, visual C# and IE real-time interaction technology are introduced to the marine incinerator operation training system and the development thoughts of the interactive marine incinerator operation training system based on Web3D are elaborated based on the 3D modeling optimization and real-time interaction technology. This study is a new type of marine engineering training mode, it can better meet the STCW convention in Manila amendments on incinerator equipment management requirements.

APPLICATION OF FUZZY ANALYTIC HIERARCHY PROSES FOR ERROR DETECTION OF AUXILARY SYSTEMS OF SHIP MAIN DIESEL ENGINES

2021 ◽  
Vol 157 (A2) ◽  
Author(s):  
H Demirel ◽  
K Ünlügençoğlu ◽  
F Alarçin ◽  
A Balin
Keyword(s):  
Diesel Engine ◽  
Error Detection ◽  
Cooling System ◽  
Detection System ◽  
Analytic Hierarchy ◽  
Engine Room ◽  
Air Supply ◽  
Solution Methods ◽  
Marine Engineering ◽  
Main Engine

Ship engine room has a structure which has to meet a number of needs with regard to administrative conditions. Therefore, when the complicated structure of engine room are considered, even a simple mechanical failure, if no measures taken abruptly, grows into irreversible condition, causing losses that cannot be compensated. A well-qualified ship engine conductor along with an effective error detection system is needed to detect failure and act immediately against any engine impairments possible. This study aims to manage troubleshooting in main engine auxiliary systems which cover cooling, lubricating and cooling oil and fuel systems. The study is also thought to be a good reference for maintenance processes for marine engineering operators. Breakdown of main engine equipment are examined and troubles hooting program is developed for using Fuzzy Analytic Hierarchy Process (F-AHP) determine solution methods and causes of such breakdowns. In this paper, a fuzzy Multi Criteria Decision Making (MCDM) methodology was proposed to determine the most effected system of the ship main diesel engine. The results showed that fuel system was the most effected alternative, as being followed subsequently by cooling system, governor system, air supply system and oiling system. The results were based upon the opinions of three experts groups who ranked the ship main diesel engine systems alternatives according to twenty-nine criteria expert selected.

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