Methodology for the design and evaluation of resilient measurement methods based on sensing machine elements

• Applicant: Professor Dr.-Ing. Eckhard A. Kirchner
• Subject Area: Engineering Design, Machine Elements, Product Development
• Term: since 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 550413623

The intended methodology for the design and evaluation of resilient measurement processes based on sensing machine elements includes methods for design and evaluation as well as the associated models. The understanding of technical resilience is transferred to measurement procedures and the properties required for this are quantified. Necessary and sufficient requirements for resilient measurement methods for the realization of a safety function are to be identified. In order to consider non-functional aspects, such as resource consumption, in addition to the resilience requirements and thus address a main point of criticism of the approaches to realizing the requirements of functional safety, holistic requirements for measurement methods are also developed. These requirements can be used to examine measurement methods in terms of their resilience properties. Existing models such as the resilience deployment model are examined for their suitability for the systematic identification and deduction of resilience properties in measurement methods. The models strengthen the understanding of the resilience of measurement methods and form the starting point for their quantitative evaluation. With the help of these models, a method for conceptualizing resilient measurement procedures is developed and quantitative evaluation criteria based on the holistic requirements are developed. Furthermore, criteria for an evaluation method for the resilience properties of measurement procedures are developed. After an initial evaluation of the methodology based on an application example and the experimental validation of the resilience properties of the developed resilient measurement procedure, initial design guidelines are derived. These are intended to support the synthesis of resilient measurement methods, with SME-based solutions in particular being used as a resource-saving alternative. In order to achieve the overarching goal of this project, the following research questions (RQ) will be addressed: RQ 1: Which holistic properties and resulting requirements can be formulated for resilient measurement methods? RQ 2: How can the systematic conceptualization of resilient measurement procedures be methodically supported and which models form the basis for this? RQ 3: How can measurement procedures be systematically evaluated with regard to their resilience properties, and which models and quantitative criteria form the basis for this? RQ 4: What general design guidelines for resilient measurement procedures can be derived from the initial evaluation of the methodology? Elements of existing measurement methods are taken from the state of research and combined into resilient measurement procedures. Components or systems for recording measured variables, signal transmission or processing are left aside.

• DFG Programme: Research Grants