443 research outputs found
A Conceptual Model Combination for the Unification of Design and Tolerancing in Robust Design
In design engineering, the early consideration of tolerance chains contributes to robust design. For this, a link of design and tolerancing domains is essential. This paper presents a combination of the graph-based tolerancing approach and the Contact and Channel approach to link these domains. The combined approach is applied at a coinage machine. Here it provides detailed insights into state-dependent relations of embodiment and functions, which can improve robustness evaluation of the concept. This approach shows a possibility to bridge the gap between design and tolerancing domains
Current Challenges And Solution Approaches In Empirical Engineering Design Research – A Workshop For Empirical Research
The requirements on validity for studies in design research are very high. Therefore, this paper aims at identifying challenges that occur when setting up studies and suggests solution strategies to address them. Three different institutes combining their experience discussed several studies in a workshop. Resulting main challenges are to find a suitable task, to operationalise the variables and to deal with a high analysis effort per participant. Automation in data evaluation and a detailed practical guideline on studies in design research are considered necessary
Qualitative Modelling in Embodiment Design - Investigating the Contact and Channel Approach Through Analysis of Projects
Purposeful qualitative modelling of embodiment function relations is a challenge in embodiment design. This contribution investigates the applicability and usefulness of the Contact and Channel Approach as a qualitative modelling approach in a survey study. From 23 development and research projects, advantages and challenges regarding applicability and usefulness are identified. A further result is that many different models are used additionally to the Contact and Channel Approach. Based on the findings, research potential for optimization and development of links to other models emerges
Coherent Control of Trapped Ion Qubits with Localized Electric Fields
We present a new method for coherent control of trapped ion qubits in
separate interaction regions of a multi-zone trap by simultaneously applying an
electric field and a spin-dependent gradient. Both the phase and amplitude of
the effective single-qubit rotation depend on the electric field, which can be
localised to each zone. We demonstrate this interaction on a single ion using
both laser-based and magnetic field gradients in a surface-electrode ion trap,
and measure the localisation of the electric field
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