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Item type:Publication, Access status: with files , Structured reflection to support design method validation and adaptation in product architecture design – a case study(Cambridge University Press (CUP), 2026-10-26); ; ; ; Design methods should support engineers in efficiently developing technical systems but are often considered difficult to understand and apply. Conventional method validation focuses on performance outcomes, providing little insight into how users experience methods during application or adaptation. Structured reflection has been discussed to uncover misunderstandings and identify improvements, but its systematic application in method development remains underexplored. This article investigates how reflection can support design method adaptation in early validation. A multiple-workshop case study was conducted with 20 participants applying four methods under comparable conditions during the Product Architecture Design Summer School. Reflection was systematically planned, guided and analyzed through coded audios. The dataset includes four planning documents, 20 Canvas documents, 400 minutes of recordings and questionnaire feedback on reflection tools. Results show recurring reflection patterns: reflection is strongly process-oriented; action planning emerges only after descriptive phases ; social aspects are rarely addressed without explicit prompts. While reflection tools were perceived as useful, guiding questions require simplification for intuitive use. A four-stage framework for Reflection-Driven Method adaptation is proposed, supporting researchers in planning, executing and analyzing reflection as a method validation instrument. The study demonstrates how reflection can produce actionable improvements and offers a reproducible approach for early method validation in engineering design.Publicationtype: Journal Article9 15 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Product family engineering along the life cycle – research aspects to cope with variability in advanced systems(Cambridge University Press (CUP), 2024-10-31); ; ; The evolutionary development of advanced systems (AS) leads to a necessary rethinking of how they can be supported methodically and in terms of processes in product development. Advanced systems engineering (ASE) offers a novel and holistically adaptive approach to facing such challenges in a structured way. However, many of the ASE use cases relate to the development of systems as products, product networks or individual projects. The additional consideration of entire modular product families within AS offers a further decisive advantage for companies, organisations and the people in ASE. By considering modular product families along the entire life cycle in a product family engineering (PFE), the approaches of ASE can bring their impact and potential to additional system levels occurring when considering product families. The systems, which become complex through variety and collaboration, are broken down into their system elements in a structured way and prepared for a common interdisciplinary understanding, as conveyed by ASE. In this paper, the PFE is presented in excerpts using examples of various aspects and points in time of the product’s life as a complementary approach for ASE.Publicationtype: Journal Article33 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Optimizing lightweight structures with particle damping using frequency based substructuringIn many cases, the use of damping technologies is the only option to reduce undesired vibrations. Despite various damping techniques available on the market, the design of a precise damping behaviour still needs a lot of experimental testing and engineering experience. This is also the case for particle damping. However, for lightweight structures, technologies such as particle damping provide an opportunity to improve the structural dynamic behaviour without a large mass gain. With respect to this conflict, a hybrid numerical and experimental design approach is presented based on frequency based substructuring (FBS). With this technique, the use of experimental data for design optimization is possible and detailed modelling of the nonlinear particle damping system can be avoided. Moreover, based on the FBS, an approach to optimize damping and weight is proposed. All results are compared to experiments, and a subsequent discussion shows that the predictions for particle damping with FBS are accurate for defined operating points from which realistic designs can be derived. Generally, it is shown that methodical design approaches may strongly improve not only product development processes but also structural mechanical design.Publicationtype: Journal Article144 532 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Optimization of load introduction points in sandwich structures with additively manufactured coresThis paper presents how numerical optimization methods, like topology optimization, and new design possibilities through additive manufacturing (AM) can be used for structural improvements of the load introduction points in sandwich structures. A new design approach is presented, which allows a direct load-path optimized integration of the load introduction point into the sandwich core. The corresponding methodical procedure is shown and the application is demonstrated exemplarily for a sandwich structure with a honeycomb core. The advantages for design science are that the new design possibilities of AM can be considered and used when designing the load introduction points. Thus, the additional reinforcements of the sandwich structures to absorb locally introduced forces in the lightweight structure can be minimized. This enables a meaningful technical comparison and it can be decided in the future whether such a design can be used for sandwich structures under economic aspects. In addition, the influence of the initial and boundary conditions on the design is presented and discussed in this paper. The challenges of optimizing multiple load introduction points simultaneously as well as the special aspects to be considered when transferring the design approach to larger sandwich structures are also highlighted.Publicationtype: Journal ArticleScopus© Citations 9 241 291 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Perceived quality framework in product generation engineering: an automotive industry example(Cambridge University Press (CUP), 2019); ; ; ; Perceived quality refers to customers’ cognitive and emotional responses to a particular design, often also associated with craftsmanship and customer satisfaction. Previous research defined a taxonomy of perceived quality and provided understanding about how engineering design decisions impact customer satisfaction. Furthermore, development of new products is frequently based on carrying over attributes of existing products, either from the same producer or from competitors. Previous research offered a new product development methodology combining variations of subsystems to carry over from existing products. This brief presents how these two lines of research combined to design the central console of the Porsche Panamera automobile and discusses the opportunities and challenges posed in the practical implementation of this research.Publicationtype: Journal Article28 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Model-based systems engineering in modular design(Cambridge University Press (CUP), 2019); ; ; ; Modular design allows to reduce costs based on scaling effects. However, due to strong alternating effects between the resulting modules and products, methods and tools are required that enable engineers to use specific views in which the respective information can be linked and retrieved according to the situation. Within the scope of this paper, the model-based systems engineering (MBSE) approach is used to model the complex real-world problem of vehicle modular kits. The aim is to investigate the potentials in this context, how modular kits and products can be efficiently modeled and finally how MBSE can support modular design. In order to investigate this in detail, two extensive studies are carried out in a company over a period of three years. The studies show that modular kits lead to an increased complexity of development. Across industries and companies, the demand for reference product models is …Publicationtype: Journal Article49 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Connected creativity-a human centered community innovation platform in the context of product generation engineering(Cambridge University Press (CUP), 2018); ; ; In this paper, a concept for a community innovation platform is introduced focusing on human behavior of motivation and barriers in the context of product generation development. Building on the state of the art, a three year case study in cooperation with Dr. Ing. h.c. F. Porsche AG is at the core. In the first step of the study, a questionnaire and interviews are used to point out that a new attractive channel for ideas is needed. The three perspectives of users, experts and stakeholders are investigated in order to discover needs and preferences. Based on these findings, in a second step, a software prototype was designed and introduced in a pilot project with more than 200 users. Using a questionnaire and expert workshops, in the final step, this project is evaluated as appealing to the community, and the generated content is demonstrated to be valuable to specific activities of product generation development.Publicationtype: Journal Article57 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , On the integration of product and process models in engineering design(Cambridge University Press (CUP), 2017); ; ; ; Models of products and design processes are key to interacting with engineering designs and managing the processes by which they are developed. In practice, companies maintain networks of many interrelated models which need to be synthesised in the minds of their users when considering issues that cut across them. This article considers how information from product and design process models can be integrated with a view to help manage these complex interrelationships. A framework highlighting key issues surrounding model integration is introduced and terminology for describing these issues is developed. To illustrate the framework and terminology, selected modelling approaches that integrate product and process information are discussed and organised according to their levels and forms of integration. Opportunities for further work to advance integrated modelling in engineering design research and practice are discussed.Publicationtype: Journal Article33 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Agile product engineering through continuous validation in PGE – Product Generation Engineering(Cambridge University Press (CUP), 2017); ; ; ; Most products are developed in generations. This needs to be considered with regard to development methods and processes to make existing knowledge available to achieve increased efficiency. To realize this, the approach of PGE-product generation engineering-is formulated. Product generation engineering is understood as the development of products based on reference products (precursor or competitor products). The subsystems are either adapted to the new product generation by means of carryover or they are newly developed based on shape variation or principle variation. Validation is considered as the central activity in the product engineering process and is a major challenge, especially for complex mechatronic systems. Therefore, it is important to understand validation as an ongoing activity during product development. The pull principle of validation describes the definition and development of validation activities, including models and validation environments based on specific validation objectives. In order to have effectiveness within validation of subsystems, it is necessary to map the interactions with the overall system, namely the super-system. The relevant subsystems can be connected under consideration of functional and energetic aspects by means of virtual, physical or mixed virtual-physical modeling applied by the holistic IPEK-X-in-The-Loop approach within the integrated Product engineering Model (iPeM).Publicationtype: Journal Article35