|TRIZ Case Study Paper:|
|Using TRIZ to Develop New Corrosion Protection Concepts in Shipbuilding -- A Case Study|
|Jan R. Weitzenbock and Stefan Marion (Det Norske Veritas,Norway)|
|Presented at ETRIA World Conference 'TRIZ Future 2006' Held at Kortrijk, Belgium, on Oct. 9-11, 2006|
|[Japanese translation by Youichi Hasgawa and Toru Nakagawa, posted in the Japanese page on May 23, 2007]|
|[Posted on May 23, 2007] Under the permission by the Author.|
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Editor's Note (Toru Nakagawa, May 23, 2007)
The paper posted here was originally presented half a year ago at ETRIA TFC 2006 held in Belgium. It addresses TRIZ to the old problem of corrosion of ship surface. The authors applied TRIZ in its modern but already rather standard approach described in Darrell Mann's "Hands-On Systematic Innovation". The paper describes the TRIZ application process and the contents of their findings in detail. I think this is a sound case study of TRIZ applied to a significant topic in technology, from which we can learn a lot how to use TRIZ.
In my 'Personal Report of ETRIA TFC 2006' posted in this Web site in English, I reviewed this paper in some detail. The part of reviewing this paper is cited below.
Recently, Mr. Youichi Hasegawa, Fuji Film Co., volunteered to translate this paper in Japanese. Under the permission of the Authors, we have just posted the Japanese version translated by Hasegawa and Nakagawa in the Japanese page of this Web site "TRIZ Home Page in Japan", in the format of HTML and PDF.
The original English version of the paper is posted here in PDF. We wish to express our sincere thanks to the Authors, Mr. Jan Weitzenbock and Stefan Marion, for their nice work and for their kind permission.
Introduction & Review of the Presentation (Toru Nakagawa (OGU), Dec. 31, 2006)
Excerpt from Nakagawa's 'Personal Report of ETRIA TFC 2006' (posted on Jan. 7, 2007)
Jan R. Weitzenbock and Stefan Marion (Det Norske Veritas,Norway)  gave a presentation with the title of "Using TRIZ to Develop New Corrosion Protection Concepts in Shipbuilding -- A Case Study". This paper seems to be a report of in-company workshop on the specific topic by using TRIZ in the way of Darrell Mann's textbook, "Hands-On Systematic Innovation" . The Abstract is quoted below:
Accidents involving ships that carry environmentally dangerous cargo, such as oil tankers, can have severe consequences for the environment. In many accidents, the ship structure had been weakened by corrosion. The aim of this paper is to look at possible improvements to today's corrosion protection systems. The initial approach was to use the TRIZ Problem Explorer, Function and Attribute analysis and IFR to help define the problem. We identified possible paths for further development. The initial methods chosen for the TRIZ solution were Trends of Evolution and Knowledge/Effects. The results of these workshops were reported in form of road maps. The paper discusses the main results and outlines possible new corrosion protection approaches.
They selected three focus areas to study: (a) selection of material of shipbuilding, (b) application of coating, and (c) monitoring and detection of corrosion. The paper reports topics (a) and (b) in parallel, but only (b) is described in the present review, for the sake of brevity. The problem, especially topic (b), has been defined as follows by using Mann's format of Problem Explorer:
Then the Function and Attribute Analysis is applied. The main aim was to capture how corrosion affects the surfaces over time, the Authors say. Thus, the figures below show the state that the coating has just been applied, in the left, and the state of coated surface after several years, in the right. Positive functions are shown in blue arrows, while negative functions in red arrows.
Trends of Evolution were further applied one after another to examine possible ways of improving the present situation. The following figure illustrates the results in the form of 'Evolution Potential Radar Chart'.
Finally the Authors showed a roadmap as shown below, in the area of surface modification and coatings. The time frames indicate when technologies might become available for industrial application.
The Authors write as follows on this road map:
The meaning of these diagrams [i.e. road maps -- Nakagawa] is not to predict the future but to show possible trends and highlight the need to prepare for them e.g. by initiating relevant research projects and recruiting and training of personnel. Furthermore, it facilitates discussion and dialogue between different stakeholders. A first initiative emerging from this study is the MarFilm project. This project will investigate the possibility of using polymer film for corrosion protection to replace coating for ship superstructures and the hull, above and possible below the waterline.
*** This report is a sound case study of applying TRIZ to real industrial problems. I agree with the Authors' conclusion saying "TRIZ proved to be an extremely useful tool in analyzing and pointing out possible solutions for corrosion protection of ships and marine structures. It gave us new insights into an old problem and helped define new direction for future research."
Original Paper in PDF
Original Paper (in English) (PDF, 267KB, 8 pages) Click Here.
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