Searched for: author%3A%22Koppen%2C+S.%22
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document
Smit, Thijs (author), Koppen, S. (author), Ferguson, Stephen J. (author), Helgason, Benedikt (author)
A promising new treatment for large and complex bone defects is to implant specifically designed and additively manufactured synthetic bone scaffolds. Optimizing the scaffold design can potentially improve bone in-growth and prevent under- and over-loading of the adjacent tissue. This study aims to optimize synthetic bone scaffolds over...
journal article 2023
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Koppen, S. (author)
High-tech equipment critically relies on the precise and reliable fine alignment of components such as mirrors and lenses for calibration and adaptation of instrumentation. To meet the ever-increasing requirements on precision, engineers typically resort to monolithic compliant mechanisms. These mechanisms gain mobility by deformation of the...
doctoral thesis 2022
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Koppen, S. (author), Langelaar, Matthijs (author), van Keulen, A. (author)
High-tech equipment critically relies on flexures for precise manipulation and measurement. Through elastic deformation, flexures offer extreme position repeatability within a limited range of motion in their degrees of freedom, while constraining motion in the degrees of constraint. Topology optimization proves a prospective tool for the...
journal article 2022
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Koppen, S. (author), Langelaar, Matthijs (author), van Keulen, A. (author)
In topology optimization, the state of structures is typically obtained by numerically evaluating a discretized PDE-based model. The degrees of freedom of such a model can be partitioned in free and prescribed sets to define the boundary conditions. A multi-partition problem involves multiple partitions of the same discretization, typically...
journal article 2022
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Koppen, S. (author), van der Kolk, M. (author), van den Boom, S.J. (author), Langelaar, Matthijs (author)
Real-world structural optimisation problems involve multiple loading conditions and design constraints, with responses typically depending on states of discretised governing equations. Generally, one uses gradient-based nested analysis and design approaches to solve these problems. Herein, solving both physical and adjoint problems dominates...
journal article 2022
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Koppen, S. (author), Hoes, Emma (author), Langelaar, Matthijs (author), Frecker, Mary I. (author)
Compliant mechanisms are crucial components in current and future high-precision applications. Topology optimization and additive manufacturing offer freedom to design complex compliant mechanisms that were impossible to realize using conventional manufacturing. Design for additive manufacturing constraints, such as the maximum overhang angle...
conference paper 2021
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Koppen, S. (author), van der Kolk, M. (author), van Kempen, F.C.M. (author), de Vreugd, J (author), Langelaar, Matthijs (author)
The stringent and conflicting requirements imposed on optomechanical instruments and the ever-increasing need for higher resolution and quality imagery demands a tightly integrated system design approach. Our aim is to drive the thermomechanical design of multiple components through the optical performance of the complete system. To this end,...
journal article 2018
Searched for: author%3A%22Koppen%2C+S.%22
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