The contact and channel approach – 20 years of application experience in product engineering

Grauberger, Patric; Wessels, H.; Gładysz, Bartłomiej; Bursac, Nikola; Matthiesen, Sven; Albers, Albert

doi:10.1080/09544828.2019.1699035

Cited by 25 publications

(16 citation statements)

References 25 publications

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“…These experts have learned about the C&C 2 -Approach in their education and have access to literature describing its theory as well as application examples and the training course. Investigations regarding model usage also show, that this approach is seldom used in modelling practice [12]. These findings are similar to findings about the CPM [13] and indicate that difficulties in learning an approach can hinder its prevalence in design research and practice.…”

Section: Introductionsupporting

confidence: 78%

Enhancing design method training with insights from educational research–improving and evaluating a training course for a qualitative modelling method

et al. 2021

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This study presents an approach for identification and elimination of challenges in modelling in embodiment design. These challenges can be caused either by the modelling method or the corresponding training course. To investigate the efficacy of a modelling method, first challenges of the corresponding training course need to be addressed. The study is conducted at a training course of the modelling method of the Contact and Channel Approach. A situation analysis of the training course is conducted in three application with 45 participants. Based on the findings, the training course is improved through application of insights from educational research that correspond to the identified challenges. A concluding evaluation takes place with 20 participants. The improvement of the training course takes place based on identification of challenges in the four areas of didactic elements, content structure, visualization and practical modelling in evaluations. Modularization is needed for purposeful training of different target groups. An issue regarding the practical modelling indicates a clearer view on the efficacy of the modelling method. Article highlights Identification of challenges in a training course for qualitative modelling in embodiment design through free text evaluation in three applications. Clustering of the evaluation results enabled identification of suitable findings from educational research to eliminate challenges in the training course. Conflicts of objectives regarding content and time can be addressed by modularization, however, this increases the effort needed for investigations.

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Section: Introductionsupporting

confidence: 78%

Enhancing design method training with insights from educational research–improving and evaluating a training course for a qualitative modelling method

et al. 2021

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“…To verify the different explanations, further studies should be carried out to investigate the influence of the thread parameters lead angle and flank distance independently of each other. So-called design hypotheses (Grauberger et al 2020) can be applied to support verification. The failure mechanisms need further research on the shear mechanisms at failure und force distribution in the close proximity of the thread.…”

Section: Discussionmentioning

confidence: 99%

Wood screw design: influence of thread parameters on the withdrawal capacity

2021

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Self-tapping wood screws are important fasteners in timber construction. A characteristic of these screws is their high axial load-bearing capacity, which also depends on their withdrawal capacity. This is used for structural design and is thus an important optimization parameter for wood screws. To increase the withdrawal capacity, knowledge of the influence of the thread parameters, such as outer diameter, pitch or flank angle, is required. The influences of pitch and flank angle on the withdrawal capacity have not yet been sufficiently subjected to research and are therefore investigated in this study. A total of ten specially developed screw prototypes with pitches in the range of 3.04 mm and 5.9 mm and flank angles in the range of 35° and 45° are used. The screw prototypes are flat ribbed bars with uncoiled screw thread. The effect on the withdrawal capacity is measured using an experimental setup based on test standard EN 1382:2016. The pitch showed a significant influence (p = 0.000, f = 0.37) whereas the influence of flank angle was not significant (p = 0.283). A smaller pitch leads to a higher withdrawal capacity, irrespective of the flank angle. The experimental results are explained based on the theoretical models of bonding mechanisms and conical stress distribution. To optimize the withdrawal capacity of a ø 8 mm screw, a smaller pitch is preferable. The determined influence of the pitch can also be used to improve the accuracies of calculation models for the withdrawal capacity.

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“…Design research provides various design methods to address these factors. The system's intricacy as well as the occurring complex interactions may be addressed by using modelling approaches like the Contact and Channel Approach (Grauberger et al, 2019) or the Design Structure Matrix (Yassine and Braha, 2003).…”

Section: Causes For Situations With a Need For Methodological Supportmentioning

confidence: 99%

Identifying Reasons for a Lack of Method Application in Engineering Design Practice – An Interview Study

Eisenmann

Matthiesen

2020

Proc. Des. Soc.: Des. Conf.

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Design methods are seldom used in engineering design practice. The presented study aims at finding the alternative strategies for situations with a need for methodological support. Semi-structured interviews were conducted with ten experienced design engineers to identify causes of and strategies for those situations. Three strategy clusters could be identified: generating information, experience and method application. As the individual's and the team's experience compete with the application of methods, they are seen as reasons for a lack of method application.

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The contact and channel approach – 20 years of application experience in product engineering

Cited by 25 publications

References 25 publications

Enhancing design method training with insights from educational research–improving and evaluating a training course for a qualitative modelling method

Enhancing design method training with insights from educational research–improving and evaluating a training course for a qualitative modelling method

Wood screw design: influence of thread parameters on the withdrawal capacity

Identifying Reasons for a Lack of Method Application in Engineering Design Practice – An Interview Study

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