Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Christoffer Cromvik"'
Autor:
Johannes Quist, Vaishak Ramesh Sagar, Fredrik Edelvik, Andreas Mark, Kristina Wärmefjord, Klas Jareteg, Rikard Söderberg, Christoffer Cromvik, Johan Göhl, Samuel C Lorin
Publikováno v:
Journal of Manufacturing Science and Engineering. 144
Selective laser melting (SLM) process is a powder bed fusion additive manufacturing process that finds applications in aerospace and medical industries for its ability to produce complex geometry parts. As the raw material used is in the powder form,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa0dfb919624bc9a0b33b6c8ace1ca47
https://doi.org/10.1115/1.4052705
https://doi.org/10.1115/1.4052705
Autor:
Samuel C Lorin, Christoffer Cromvik, Roham Sadeghi Tabar, Lars Lindkvist, Kristina Wärmefjord, Rikard Söderberg
Publikováno v:
Volume 2B: Advanced Manufacturing.
Geometric variation is one of the sources of quality issues in a product. Spot welding is an operation that impacts the final geometric variation of a sheet metal assembly considerably. Evaluating the outcome of the assembly, considering the existing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4aea4cfa2f0d6426070cc5d7d8864c7d
https://doi.org/10.1115/imece2020-23798
https://doi.org/10.1115/imece2020-23798
Publikováno v:
Multibody Dynamics 2019 ISBN: 9783030231316
In this work we will present a novel approach to compute the potential energy and its derivatives of a shell discretized by finite elements. Afterwards a special solution strategy for quasistatic equilibrium problems with moving boundary conditions i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb6198bcd941523ccc1f242c626c92c1
https://doi.org/10.1007/978-3-030-23132-3_25
https://doi.org/10.1007/978-3-030-23132-3_25
Autor:
Christoffer Cromvik, Zuzana Nedělková, Peter Lindroth, Michael Patriksson, Ann-Brith Strömberg
In the design of complex products, some product components can only be chosen from a finite set of options. Each option then corresponds to a multidimensional point representing the specifications of the chosen components. A splitting algorithm that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::813c69f178e87b8b73337b6537487f82
https://publica.fraunhofer.de/handle/publica/254843
https://publica.fraunhofer.de/handle/publica/254843
Autor:
Kristina Wärmefjord, Lars Lindkvist, Johan S. Carlson, Fredrik Edelvik, Rikard Söderberg, Christoffer Cromvik, Cornelia Jareteg, Stig Larsson
Publikováno v:
Journal of Computing and Information Science in Engineering. 16
Geometrical variation and deviation in all manufacturing processes affect quality of the final product. Therefore geometry assurance is an important tool in the design phase of a new product. In the automotive and aviation industries where the use of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18dbeb9af5da2639086e2ed132d16b8a
https://doi.org/10.1115/1.4033726
https://doi.org/10.1115/1.4033726
Publikováno v:
Journal of Optimization Theory and Applications. 144:479-500
In a companion paper (Cromvik and Patriksson, Part I, J. Optim. Theory Appl., 2010), the mathematical modeling framework SMPEC was studied; in particular, global optima and stationary solutions to SMPECs were shown to be robust with respect to the un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bb35294fde983d3d03fa33f3d1e013d
https://doi.org/10.1007/s10957-009-9640-2
https://doi.org/10.1007/s10957-009-9640-2
Publikováno v:
Journal of Optimization Theory and Applications. 144:461-478
We consider a stochastic mathematical program with equilibrium constraints (SMPEC) and show that, under certain assumptions, global optima and stationary solutions are robust with respect to changes in the underlying probability distribution. In part
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db75f9a6d9f3b391f53bf1d85910ec11
https://doi.org/10.1007/s10957-009-9639-8
https://doi.org/10.1007/s10957-009-9639-8
Publikováno v:
Volume 2A: Advanced Manufacturing.
Welding induces high temperatures that cause residual stresses and strains in the welded structure. With a welding simulation, these stresses and strains may be predicted. A full simulation implies performing a transient thermal and a quasi-static me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9efa46821e82d4d893726246a9320f72
https://doi.org/10.1115/imece2014-38472
https://doi.org/10.1115/imece2014-38472
Autor:
Fredrik Edelvik, Christoffer Cromvik, Rikard Söderberg, Kristina Wärmefjord, Lars Lindkvist, Samuel C Lorin
Publikováno v:
Volume 4: 19th Design for Manufacturing and the Life Cycle Conference; 8th International Conference on Micro- and Nanosystems.
The prediction of geometric variation and its consequences is one important aspect of product development. For welded assemblies it has been shown that positioning errors of the parts prior to welding affects the weld-induced distortion. Therefore, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5cffc0f5d40a31707111408631741be
https://doi.org/10.1115/detc2014-35102
https://doi.org/10.1115/detc2014-35102
Every series of manufactured products has geometric variation. Variation can lead to products that are difficult to assemble or products not fulfilling functional or aesthetical requirements. In this paper, we will consider the effects of welding in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e569efd9e7798db107f1155cfc320e9
https://publica.fraunhofer.de/handle/publica/237325
https://publica.fraunhofer.de/handle/publica/237325