Consideration of uncertainty within the conceptual integration of measurement functions into existing systems

摘要

On the level of the conceptual integration of measurement functions into existing technical systems, there is significant uncertainty regarding the dependence of potential solutions on environmental and boundary conditions. In order to enable an early assessment of the viability of potential solutions, an approach to take this uncertainty into account is presented in this paper. For this purpose, existing approaches for the differentiation of uncertainty, for failure and hazard analysis, for the integration of measurement functions into existing systems as well as for robust design are collected in a literature review and further developed in a focused way. Based on a general differentiation of possible uncertainties (context, model, data uncertainty), the identification of uncertainty is supported by the further development and application of a control list and an effect matrix. The subsequent evaluation of the identified uncertainty is carried out with a method similar to a FMEA. Finally, measures for the consideration of uncertainty (reduction of uncertainty, reduction of the influences of uncertainty and reduction of the impacts of uncertainty) are derived from the principles of robust design. The presented approach is applied to the sensor integration into an elastic claw coupling.