Abstract
One challenge in adaptive design of technical systems is insufficient understanding of the mechanical system behavior. The actual system behaviour often differs from the system behaviour expected by the designer. This is due, for example, to influences from manufacturing, wear, or errors in the designer’s understanding. For the analysis of the differences between expected and actual system behavior, the system behaviour can be observed. Special analysis techniques are often necessary for system observation. However, the missing methodical support in the system-specific use of analysis techniques is a challenge. In this contribution, a methodical support for the selection and adaptation of analysis techniques for system observation is developed. For this, known errors that occur during system observation are operationalised and provided as requirements for evaluation of analysis techniques. The support is provided as a Selection Matrix, in which the evaluated analysis techniques can be selected and adapted. This is evaluated considering an accompanying application to the non-transparent system wood screw connection. By using the analysis techniques selected with the method, it was possible to identify the actual system behaviour and gain new insights. Here, the Selection Matrix provided support through a structured evaluation of analysis techniques. The Selection Matrix also supported the adaptation of analysis techniques for improved observation of the system behaviour. No general statements on the quality of the support by the Selection Matrix are yet possible. Also, the operationalisation of the errors should be improved to reduce subjective influences. Therefore, these topics should be investigated in further studies.
Highlights
The process of designing is based on iterative sequences of analysis and synthesis steps [1]
The selection of suitable analysis techniques is a difficulty [22], as it remains unclear when and which analysis technique is to be used for a specific situation [16]. The objective of this contribution is to develop and evaluate a methodical support for the systematic selection and adaptation of analysis techniques in order to observe the mechanical behaviour of non-transparent systems. This methodical support is developed as a structure that will enable the evaluation of existing analysis techniques as well as their combination into new analysis techniques suitable for specific tasks
It is possible to adapt analysis techniques to a specific situation. This aims at increasing the chance to observe mechanical system behaviour which is unknown in detail and for which no suitable analysis techniques have been existing so far
Summary
The process of designing is based on iterative sequences of analysis and synthesis steps [1]. The product’s structure must be analysed to identify the behaviour derived from it [4] This analysis is often difficult to conduct [5], as the behaviour of the product results from interactions in its embodiment and from its interaction with the system environment [3]. The evaluation of design issues uses approximate calculations and assessments to investigate the performance of an evolving concept [7] For these calculations, the behaviour derived from structure and the resulting effects must be known. Observation of the mechanical product embodiment under application conditions is needed to derive behaviour from the structure. Based on these hypotheses, tests or experiments can be conducted that lead to the necessary insights
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