Pipe-routing algorithm development: case study of a ship engine room design

2002 ◽  
Vol 23 (3) ◽  
pp. 299-309 ◽  
Author(s):  
Jin-Hyung Park ◽  
Richard L. Storch
Keyword(s):  
Routing Algorithm ◽  
Algorithm Development ◽  
Engine Room ◽  
Room Design ◽  
Pipe Routing

Engineering Rules-Based Orthogonal and Variable-Steps Pipe Routing Algorithm for Aero-Engines

2012 ◽  
Vol 442 ◽  
pp. 104-108
Author(s):  
Xiao Lan Bai ◽  
Yu Zhang
Keyword(s):  
Routing Algorithm ◽  
Specific Flow ◽  
Memory Space ◽  
Fast Search ◽  
3D Space ◽  
Cylindrical Coordinate ◽  
Pipe Routing ◽  
Search Speed ◽  
Aero Engines

Pipe routing is to design the routes for pipes in 3D space, meeting various constraints and engineering rules. This paper proposes the engineering rules-based orthogonal and variable-steps pipe routing algorithm. Firstly, the cylindrical coordinate system was adopted to describe the layout space and obstacles. In view of two endpoints of the pipe and obstacles in between, the local searching space was built. Then, the searching algorithm was given according to engineering rules, which was involved with the orthogonal searching directions and their order, the searching variable-steps. Moreover, the specific flow of this algorithm was described. The algorithm requires less memory space and has a fast search speed. The case study shows it is feasible and effective.

scholarly journals SOLVING THE FAILING TRACK MARKER PROBLEM IN AUTOMATED GUIDED VEHICLE SYSTEMS – A CASE STUDY

2020 ◽  
Vol 10 (3) ◽  
pp. 36-43
Author(s):  
Tomasz Lewowski
Keyword(s):  
Data Acquisition ◽  
Automated Guided Vehicle ◽  
Technical Process ◽  
Paper Briefly ◽  
Internal Defects ◽  
Algorithm Development ◽  
Verification Algorithm ◽  
Vehicle Systems ◽  
Self Tuning

This paper is a case study of the development of a localization and positioning subsystem of an Automated Guided Vehicle-based transportation system. The described system uses primarily RFID markers for localization. In some deployments, those markers occasionally fail, mostly due to being crushed by cargo platforms operated by a human or due to internal defects. Those failures are not common enough to warrant switching from marker-based localization to a more sophisticated technique, but they require additional effort from maintenance staff. In this case study, we present our solution to this problem – a self-tuning algorithm that is able to detect marker failures and, in most cases, keep the system operational. The paper briefly discusses business circumstances under which such a solution is reasonable and then describes in detail the entire technical process, including data acquisition, verification, algorithm development and finally, the result of deploying the system in production.

scholarly journals Forensic Engineering Investigation Of A Cruise Ship Fire

2001 ◽  
Vol 18 (2) ◽  
Author(s):  
Thomas P. Shefchick
Keyword(s):  
Carbon Dioxide ◽  
Insurance Companies ◽  
Cruise Ship ◽  
Financial Loss ◽  
Engine Room ◽  
Fire Insurance ◽  
Room Fires ◽  
Forensic Engineering ◽  
Engineering Investigation

Each Year There Are Approximately 50 Major Fires Aboard Ships, Which Result In Financial Loss, Personal Injury And Death. Financial Loss At Sea Instigated The Formation Of Insurance Companies Such As Lloyds Of London, Which Now Provide Fire Insurance For Most Assets. Over A Nine-Year Period From 1977 To 1986, The Liverpool Underwriters Association Reported That 33 Percent Of The Fires Originated In Machinery Spaces, 3.6 Percent Originated In Electrical Installations And 0.5 Percent Originated In Stores. Between 1991 And 1993, 54 Percent Of The Fires Originated In Engine Rooms. The Engine Room Fires Were Often Initiated By An Explosion Or The Result From An Uncontrolled Release Of Flammable Vapors Or Fuel Into The Engine Room. 40 Percent Of All Fires In Engine Rooms Are Extinguished Using Portable Appliances While 18 Percent Are Extinguished By Fixed Carbon Dioxide Systems. Portable Appliances Are Most Effective In The First 15 Minutes And Carbon Dioxide In The First 30 Minutes...A Case Study Of The Investigation Of A Fatal Passenger Cruise Ship Fire Will Be Utilized To Show How The Burn Patterns Differ, How To Determine A Fires Area Of Origin And Possible Causes Of The Fire.

VIABILITY OF USING ENGINE ROOM SIMULATORS FOR EVALUATION MACHINERY PERFORMANCE AND ENERGY MANAGEMENT ONBOARD SHIPS

2021 ◽  
Vol 161 (A3) ◽  
Author(s):  
I S Seddiek
Keyword(s):  
Adverse Effects ◽  
Energy Management ◽  
Current Paper ◽  
Fuel Saving ◽  
Saving Energy ◽  
Maritime Education ◽  
Engine Room ◽  
Passenger Ships ◽  
Oil Tanker

The maritime institutions aim at contributing to reducing the adverse effects arising from the ships, machinery operation through the possibilities exit in the engine room simulators. The current paper explains the importance of engine room simulators in maritime education in general and focuses on their use in the field of evaluation and management of machinery within the engine room space. As a case study, an electric powered passenger ship and an oil tanker ship are investigated regarding applying ship energy management onboard. This investigation could be achieved using the possibilities available in TRANSIS ERS 5000. With reference to passenger ships, the results show the possibility of saving energy with a reduction of CO, SOx, CO2 and C emissions by about 7.97, 10.54, 12.36, and 20.11%, respectively. However, regarding tanker ships, the results reveal that a reduction of speed by 10% will achieve fuel saving by about 25%.

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