An approach for using the FMEA for the development of a new and revolutionary rotation piston engine
Editor: Boks, Casper; Sigurjonsson, Johannes; Steinert, Martin; Vis, Carlijn; Wulvik, Andreas
Author: Chahin, Abdo; Paetzold, Kristin; Peterit, Philip; Grunow, Constantin
Institution: Universität der Bundeswehr München, Germany
Section: Methodology: General Applications
The early stages of product development are characterized by incomplete and insufficient data. This lack of information will usually be resolved during the process. When dealing with a new product development, the situation intensifies. This is linked to the search for solutions to physical problems – especially in case of a revolutionary or evolutionary development. In case of the development of a completely new product, insufficient data on possible product malfunctions can impede early estimations. Therefore, it is necessary to develop a novel method to analyse the different possible solutions – dealing with the physical problems.The focus of this paper lies on the development of a rotation piston engine. The pistons are going to be rotating around a common center. Consequently, the concept differs from the usual terms of the known engines. This paper explains, how the instruction of the FMEA (failure mode and effects analysis) have to be changed in order to support the developer estimating the risk of different concepts. For this purpose, the dependencies of components and functions are modeled into a network. The weighting of the connections (edges) between the nodes usually requires a lot of tests. As an alternative, the subjective rating of the developer is used to create classification numbers and, thus, to weight the network. Thereby, variations are measured and compared to each other in order to make a decision which possibility is going to be the least risky one. Moreover, this analyzation helps to identify the most critical elements of the development process supporting the developer to plan tasks.