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Fire and sound reduction encapsulation of diesel engine

Jonsson, Sebastian LU and Nilsson, David (2014) MMK820 20141
Product Development
Abstract
This Master thesis was conducted at ThyssenKrupp Marine Systems AB (TKMS AB), formerly known as Kockums AB. TKMS AB is based in Malmö, Sweden and is a manufacturer of conventionally powered submarines. The next generation of submarines, type A26, is currently under development and introduces many new features compared to prior submarine designs. Following increased fire and sound reduction demands, the diesel engines powering the submarine will be individually encapsulated. A prototype design has been developed for the engine and generator enclosure but fire classification requirements are not fulfilled and an analysis of maintenance accessibility is requested.
The aims of the project were to develop design solutions for improvement of... (More)
This Master thesis was conducted at ThyssenKrupp Marine Systems AB (TKMS AB), formerly known as Kockums AB. TKMS AB is based in Malmö, Sweden and is a manufacturer of conventionally powered submarines. The next generation of submarines, type A26, is currently under development and introduces many new features compared to prior submarine designs. Following increased fire and sound reduction demands, the diesel engines powering the submarine will be individually encapsulated. A prototype design has been developed for the engine and generator enclosure but fire classification requirements are not fulfilled and an analysis of maintenance accessibility is requested.
The aims of the project were to develop design solutions for improvement of fire protection to fulfil the fire requirements according to a reduced A15 classification. An investigation of the prototype design performance was to be performed along with identification of user needs. From gathered data and submarine design requirements a complete encapsulation design proposition was to be presented to TKMS AB.
Interviews with key submarine designers, a technical background study and evaluation of the current prototype lead to establishing target specifications. From these specifications, a number of concepts were generated. An iterative concept selection process followed which lead to four concepts, a system level design was implemented on all of the remaining concepts. Final concept scoring resulted in one concept to be applied in the final design.
Using the 3D-CAD software CREO2 a final design proposition was presented combining technical solutions for fire protection and sound reduction with access solutions focused on usability. The project resulted in a design suggestion with a high probability to fulfill the requirements and with improved maintenance accessibility. (Less)
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author
Jonsson, Sebastian LU and Nilsson, David
supervisor
organization
course
MMK820 20141
year
type
H2 - Master's Degree (Two Years)
subject
keywords
ThyssenKrupp Marine Systems AB, product development, submarine design, CREO2, fire protection, sound reduction, electromagnetic compatibility.
language
English
id
4468834
date added to LUP
2014-06-18 09:33:20
date last changed
2014-06-18 09:33:20
@misc{4468834,
  abstract     = {This Master thesis was conducted at ThyssenKrupp Marine Systems AB (TKMS AB), formerly known as Kockums AB. TKMS AB is based in Malmö, Sweden and is a manufacturer of conventionally powered submarines. The next generation of submarines, type A26, is currently under development and introduces many new features compared to prior submarine designs. Following increased fire and sound reduction demands, the diesel engines powering the submarine will be individually encapsulated. A prototype design has been developed for the engine and generator enclosure but fire classification requirements are not fulfilled and an analysis of maintenance accessibility is requested. 
The aims of the project were to develop design solutions for improvement of fire protection to fulfil the fire requirements according to a reduced A15 classification. An investigation of the prototype design performance was to be performed along with identification of user needs. From gathered data and submarine design requirements a complete encapsulation design proposition was to be presented to TKMS AB. 
Interviews with key submarine designers, a technical background study and evaluation of the current prototype lead to establishing target specifications. From these specifications, a number of concepts were generated. An iterative concept selection process followed which lead to four concepts, a system level design was implemented on all of the remaining concepts. Final concept scoring resulted in one concept to be applied in the final design.
Using the 3D-CAD software CREO2 a final design proposition was presented combining technical solutions for fire protection and sound reduction with access solutions focused on usability. The project resulted in a design suggestion with a high probability to fulfill the requirements and with improved maintenance accessibility.},
  author       = {Jonsson, Sebastian and Nilsson, David},
  keyword      = {ThyssenKrupp Marine Systems AB,product development,submarine design,CREO2,fire protection,sound reduction,electromagnetic compatibility.},
  language     = {eng},
  note         = {Student Paper},
  title        = {Fire and sound reduction encapsulation of diesel engine},
  year         = {2014},
}