Use of Triz SU-Field Models in the Process of Improving the Injector of an Internal Combustion Engine

Management Systems in Production Engineering

2019

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This article presents tools used in the Theory of Inventive Problem Solving (TRIZ) which are useful when assessing the evolution direction of technical systems. The following matters are discussed: the S-shaped curve, laws (trends and lines) of the evolution of technical systems, multi-screen diagrams, as well as analysis of evolutionary potential. Inventive laws formulated by Gienrich Altshuller as well as laws previously formulated by a Polish writer and promoter of knowledge, Aleksander Głowacki, writing under the pen name Bolesław Prus, have been presented. Finally the innovation roadmaps have been shown. The use of individual tools has been supported by practical examples taken from research performed by the authors, and the usefulness of individual methods was evaluated. All methods have been compared and evaluated.

Section: Increasing the Degree Of Substance-field Interactions Systemmentioning

confidence: 99%

A Review of TRIZ Tools for Forecasting the Evolution of Technical Systems

Chybowska

Management Systems in Production Engineering

2019

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“…The tools include functional analysis, trimming of systems, the contradiction matrix, the algorithm of innovative task solving (ARIZ), function-oriented analysis (FOS), transfer of functions, the S curve, "inventive tricks", i.e. removing technical, physical and organisational contradictions, Su-Field analysis (substance-field models), programs and databases for patent information processing and many more (Chybowski & Chybowska, 2016a;Chybowski & Chybowska, 2016b;Chybowski, 2018). From a scientific point of view, TRIZ builds on the achievements of systems theory, invention theory, bionics and psychology, and is constantly being improved.…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of the opportunities to implement the BIZ-TRIZ mechanism

Chybowska

Engineering Management in Production and Services

Wiśnicki

et al. 2019

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A B S T R A C T Aiming to strengthen cooperation between scientific entities and enterprises and to overcome related obstacles, the authors propose to create a mechanism of incentives called BIZ-TRIZ, which is an abbreviation for "TRIZ for Business". This mechanism is used to support cooperation between scientific entities and companies. Close cooperation is achieved by implementing R&D&I services, which is the responsibility of the scientific unit operating for the benefit of the companies involved. Research services are used together with the scientific instrument that reflects achievements in the modern theory of innovative problem solving (TRIZ). The analysis was made using the Maritime University of Szczecin and SME-type companies as an example. This paper describes the basic assumptions concerning the implementation of the BIZ-TRIZ mechanism. Also, it presents the use of SWOT analysis, needs/stakeholder analysis and risk analysis for the implementation of the BIZ-TRIZ mechanism. The paper describes preventative actions for the most important implementation risks and discusses the results of the analyses. Finally, it introduces the main conclusions regarding the purpose of implementing the BIZ-TRIZ mechanism. K E Y W O R D S Theory of Inventive Problem Solving (TRIZ), BIZ-TRIZ mechanism, SME sector, R&D&I services, feasibility analysis

“…A ship's internal combustion engine is usually equipped with diagnostic subsystems that are used to assess the performance of the engine during operation, as well as to detect engine malfunctions and to locate any faults as per the adopted operating strategy (Piasecki et al, 2017;Chybowski, 2018;Chybowski, Gawdzińska and Souchkov, 2018;Chybowski, Gawdzińska and Laskowski, 2019;Kazienko, 2019;Bejger and Piasecki, 2020). Depending on the purpose and design of the machine, different diagnostic methods can be used (Kluj, 2000;Quan, W., Wei, J., Zhao, YW., Sun, LH., Bianl, 2011;Borkowski, T. Kowalak, P. Myśków, 2012;Ulewicz and Mazur, 2013;Bonisławski et al, 2019;Dunaj, Dolata and Berczyński, 2019;Dunaj, Marchelek and Chodźko, 2019;Ulewicz et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Quantitative Indicators of the Instantaneous Speed of a Ship’s Main Engine and its Usability in Assessing the Quality of the Combustion Process

Multidisciplinary Aspects of Production Engineering

Kazienko

2020

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A graph of the changes in an engine’s operating speed can be used to assess the quality of the combustion in its cylinders. In this paper, the authors carried out tests on a Buckau-Wolf R8VD-136 ship engine, which was directly driving the propeller. This engine is owned by the Laboratory of Marine Engine Rooms at the Maritime University of Szczecin. For standard rotational speeds ranging from 200 to 280 rpm, with increments of 20 rpm, the authors measured the changes in the instantaneous speed for the engine’s normal operating conditions (reference graphs) as well as with one of the cylinders being out of operation. A no-combustion situation was successively introduced into each cylinder for each preset rotational speed. The obtained graphs of the instantaneous speed were then used to determine certain quantitative indicators, which the authors believe can provide information about the technical condition of the engine. The analysis concerned the averaged graphs of the speed under the conditions set for five consecutive engine operating cycles. The indicators that were calculated included the maximum difference in the speed over the engine’s full operating cycle, the uniformity of the engine speed and the differential speed area factor, the latter a term that has been proposed by the authors. The values of the individual indicators that were obtained from the reference graphs and the graphs with no combustion in one of the cylinders were compared. All indicators are sensitive to cylinder misfire. Conclusions were then drawn on the usefulness of these indicators in assessing the condition of an engine.