Publications

Interactive multiphysics and complex mechanical system group page

• Computational exploration of robotic rock loading, D. M. Lindmark, M. Servin, submitted (2017). pdf videos

• FMI Go! A simulation runtime environment with a client server architecture over multiple protocols, C. Lacoursière, T. Härdin, Proceedings of the 12th International Modelica Conference, Prague, Czech Republic, May 15-17, 2017 link pdf

• Impact force analysis with the nonsmooth discrete element method, M. Servin, T. Berglund, K-M Mickelsson, The V International Conference on Particle-Based Methods (PARTICLES 2017). abstract

• Computational modeling of flow and size segregation in a stockpile with multiple outlets, M. Servin, T. Berglund, J. Boström, The V International Conference on Particle-Based Methods (PARTICLES 2017). abstract

• Object Detection in Digital Images Under Non Standardized Conditions using Illumination and Shadow Filtering, W. Q. R. Butt, M. Servin, M. Pause, ICIPCVPR 2017: 19th International Conference on Image Processing, Computer Vision and Pattern Recognition, pdf

• Particle based solid for nonsmooth multidomain dynamics, J. Nordberg, M. Servin, Computational Particle Mechanics (2017). doi:10.1007/s40571-017-0158-3 pdf videos

• Adaptive model reduction for nonsmooth discrete element simulation, M. Servin, D. Wang, Computational Particle Mechanics 3(1):107–121 (2016). doi:10.1007/s40571-015-0100-5 preprint pdf videos

• Warm starting the projected Gauss-Seidel algorithm for granular matter simulation, D. Wang, M. Servin, T. Berglund, Computational Particle Mechanics, 3(1):43-52 (2016). doi:10.1007/s40571-015-0088-x, pdf youtube excavator web

• Accelerated granular matter simulation, D. Wang, PhD thesis, Department of Physics, Umeå University, Sweden, SE-901 87, Umeå, Sweden, Nov. 2015. pdf illustrative video

• Meshfree elastoplastic solid for non-smooth multi-domain dynamics, J. Nordberg, M. Servin, submitted for publication (2015) pdf videos

• A framework for data exchange and benchmarking of frictional contact solvers in multibody dynamics. C. Lacoursière, M. Linde, Y. Lu, J. Trinkle, ECCOMAS Thematic Conference on Multibody Dynamics, June 29 - July 2, 2015, Barcelona, Catalonia, Spain (2015) abstract.

• Modeling and simulation of a granulation system using a nonsmooth discrete element method, M. Servin, T. Berglund, K-O. Mickelsson, S. Rönnbäck, D. Wang, ECCOMAS IV International Conference on Particle-based Methods, Barcelona (2015) abstract slides

• Parametrization and validation of a nonsmooth discrete element method for simulating flows of iron ore green pellets, D. Wang, M. Servin, T. Berglund, K-O. Mickelsson and S. Rönnb?äck, Powder Technology, Powder Technology Vol 283, 475-487 (2015). doi: 10.1016/j.powtec.2015.05.040 (2015) pdf youtube mp4

• Rigid multibody simulation of a helix-like structure: the dynamics of bacterial adhesion pili, J. Zakrisson, K. Wiklund, M. Servin, O. Axner, C. Lacoursière, M. Andersson, European Biophysics Journal, Vol 44 (5), pp 291-300 (2015). doi: 10.1007/s00249-015-1021-1, pdf preprint

• A non-smooth event-driven, accurate, adaptive time stepper for simulating switching electronic circuits. C. Lacoursière, T. Sjöström, Technical Report UMINF 14.16, Umeå University, 2014. link

• Variational Time Stepping Method for Analytical System Dynamics Models, C. Lacoursière, T. Sjöström, IMSD2014-ACMD2014, The 3rd Joint International Conference on Multibody System Dynamics, The 7th Asian Conference on Multibody Dynamics, BEXCO, Busan, Korea, June 30 - July 3 (2014). abstract

• A partitioning method for parallelization of large systems in realtime, C. Lacoursière, F. Nordfeldth, M. Linde, IMSD2014-ACMD2014, The 3rd Joint International Conference on Multibody System Dynamics, The 7th Asian Conference on Multibody Dynamics, BEXCO, Busan, Korea, June 30 - July 3 (2014). abstract

• Modeling and validation of an elastoplastic terrain model for simulation of forestry machines, J. Nordberg, M. Servin, U. Bergsten, 11th World Congress on Computational Mechanics (WCCM XI), 5th European Conference on Computational Mechanics (ECCM V), 6th European Conference on Computational Fluid Dynamics (ECFD VI), July 20 - 25, 2014, Barcelona, Spain (2014). abstract

• A framework for problem standardization and algorithm comparison in multibody system, Y. Lu, J.William, C. Lacoursiere and J.C.Trinkle, ASME International Design and Engineering Technical Conferences and Computers and Information in Engineering (IDETC/CIE), Buffalo, NY, (2014)

• Examining the smooth and nonsmooth discrete element approaches to granular matter, M. Servin, D. Wang, C. Lacoursière, K. Bodin, International Journal for Numerical Methods in Engineering, vol 97, no. 12, 878–902 (2014). article preprint pdf web

• Outlet design optimization based on large-scale nonsmooth DEM simulation, D. Wang, M. Servin, K. Mickelsson, Powder Technology, vol 253, pp. 438 - 443 (2014).article preprint pdf video web

• A direct-iterative splitting method for real-time simulation of rigid multibody systems with frictional contacts, C. Lacoursière, M. Linde, N. Melin, ECCOMAS Thematic Conference on Multibody Dynamics 2013, Zagreb, Croatia, July 1–4 (2013).

• Validation of a nonsmooth discrete element method by confined compression and rod penetration, D. Wang, M. Servin, Particles 2013 – ECCOMAS International Conference on Particle-based Methods, Stuttgart (2013). abstract slides

• Parametrization and validation of a nonsmooth discrete element method for simulating flows of mineral ore balls, D. Wang, M. Servin, Particles 2013 – ECCOMAS International Conference on Particle-based Methods, Stuttgart (2013). abstract slides

• Standard Interface for data analysis of solvers in multibody dynamics, Y. Lu, J. Williams, C. Lacoursière, J. Trinkle, The 4th Canadian Conference on Nonlinear Solid Mechanics (CanCNSM 2013), McGill University, July 23-26, 2013, Montreal, Canada, Paper ID 814, (2013). pdf

• Composer - A prototype multilingual model composition tool, E. Billing and M. Servin, 7th MODPROD Workshop on Model-Based Product Development, Linköping University, www.modprod.liu.se – February 5-6 (2013). abstract slides

• Simulated productivity of one- and two-armed tree planting machines, Back T. Ersson, L. Jundén, U. Bergsten, M. Servin, Silva Fennica, Vol 47, no. 2, article id 958 (2013).

• Real-time simulation of tracked vehicles on rough terrain, C. Lacoursière, The Second Joint International Conference on Multibody System Dynamics - IMSD 2012, Stuttgart, Germany in May 29 - June 1 (2012). pdf

• A long-tracked bogie design for forestry machines on soft and rough terrain, J. Edlund, E. Keramati, M. Servin, Journal of Terramchanics, Vol 50, Issue 2, pp. 73-83 (2013). pdf preprint pdf video LTB (supplementary material)

• Simulations of Mechanized Planting – Modelling Terrain and Crane-Mounted Planting Devices, B.T. Ersson, L. Jundén, U. Bergsten & M. Servin, Mežzinātne 25(58)2012 - special edition: 15–19, The Nordic Baltic conference on forest operations OSCAR 2012 (2012). abstract slides

• Democratizing CAE with Interactive Multiphysics Simulation and Simulators, A. Backman, K. Bodin, C. Lacoursière, M. Servin, NAFEMS NORDIC Conference 2012 - Engineering Simulation: Best Practices, New Developments, Future Trends, 22 - 23 May 2012, Gothenburg, Sweden (2012). pdf

• Simulation of boom-corridor thinning using a double-crane system and different levels of automation, L. Jundén, D. Bergström, M. Servin and U. Bergsten, to appear in International Journal of Forest Engineering, Issue 1 (2013). DOI:10.1080/14942119.2013.798131 pdf web

• Examining the smooth and nonsmooth discrete element approaches to granular matter, M. Servin, C. Lacoursière, D. Wang, K. Bodin, Particles 2011 – ECCOMAS International Conference on Particle-based Methods, Barcelona (2011). abstract slides

• Outlet design optimization based on large-scale nonsmooth DEM simulation, D. Wang, M. Servin, K. Mickelsson, Particles 2011 – ECCOMAS International Conference on Particle-based Methods, Barcelona (2011).abstract

• Constraint based particle fluids on GPGPU, K. Bodin, C. Lacoursière, M. Nilsson, M. Servin, Particles 2011 – ECCOMAS International Conference on Particle-based Methods, Barcelona (2011). abstract

• Regularized multibody dynamics with dry frictional contacts, C. Lacoursière and M. Servin, Euromech Colloquium: Nonsmooth contact and impact laws in mechanics, July 6th - 8th 2011, Grenoble, France, (2011) pdf, web

• Constraint fluids, K. Bodin, C. Lacoursière, M. Servin, IEEE Transactions on Visualization and Computer Graphics, Vol pp, Issue 99. 2011. IEEE computer Society Digital Library. IEEE Computer Society, <http://doi.ieeecomputersociety.org/10.1109/TVCG.2011.29>, pdf, web

• Hybrid, multi-resolution wires with massless frictional contacts, M. Servin, C. Lacoursière, K. Bodin, IEEE Transactions on Visualization and Computer Graphics, Volume: 17 Issue:7, On page(s): 970 - 982, July (2011). IEEE computer Society Digital Library. IEEE Computer Society, <http://doi.ieeecomputersociety.org/10.1109/TVCG.2010.122>, pdf, web

• Direct Sparse Factorization of Blocked Saddle Point Matrices, C. Lacoursière, M. Linde and O. Sabelström, P, Para 2010: State of the Art in Scientific and Parallel Computing in Reykjavík on June 6-9, (2010), [1]

• Fast and stable simulation of granular matter and machines, C. Lacoursière, M. Servin, A. Backman, DEM5 - The Fifth International Conference on Discrete Element Methods, London 25-26 Aug (2010). pdf, web

• Semi-autonomous shared control of large-scale manipulator arms, A. Hansson, M. Servin, Control Engineering Practice, Elsevier, Vol 18, Issue 9, pp. 1069-1076 (2010). pdf, web

• Method for simulating dynamic incompressible fluids using particle based spatial discretization and mass density constraints, K. Bodin, C. Lacoursière, M. Servin, registered as a U.S. and European patent, US patent ID 61/183566 (2009).

• Rigid multibody simulation of a helixlike structure - The dynamics of P pili, M. Servin, K. Wiklund, E. Fällman, C. Lacoursière, C. Svebilius, M. Andersson, internal report - unpublished, (2008). pdf

• Adaptive resolution in physics based virtual environments, M. Servin, C. Lacoursière and F. Nordfelth, SIGRAD 2008, Stockholm, Sweden, (2008). pdf, web

• Visual Simulation of Machine Concepts for Forest Biomass Harvesting, M. Servin et al, VRIC '08 Laval Virtual: 10th Virtual Reality International Conference, (2008). pdf, web

• Rigid body cable for virtual environments, M. Servin and C. Lacoursière, IEEE Transactions on Visualization and Computer Graphics, 14:783-796 (2008). pdf, web

• Regularized, Stabilized, Variational Methods for Multibodies, C. Lacoursière, The 48th Scandinavian Conference on Simulation and Modeling (SIMS 2007), pages 40–48, ISBN = 91-85643-17-3, Linköping University Electronic Press, (2007). pdf

• Ghosts and machines: Regularized variational methods for interactive simulations of multibodies with dry frictional contacts, C. Lacoursière, Ph.D. dissertation, Department of Computing Science, Umeå University, Sweden, SE-901 87, Umeå, Sweden, Jun. 2007. pdf

• A Parallel Block Iterative Method for Interactive Contacting Rigid Multibody Simulations on Multicore PCs, C. Lacoursière, Applied Parallel Computing: State of the Art in Scientific Computing, PARA 2006, Lecture Notes in Computer Science, LNCS 4699, pages 956–965. Springer, editor Kågström et al. (2007). pdf

• Massless cable for real-time simulation, M. Servin and C. Lacoursière, Computer Graphics Forum, vol 26, no. 2, 172-184 (2006). pdf, web

• Interactive simulation of elastic deformable materials, M. Servin, C. Lacoursière and N. Melin, SIGRAD 2006 Conference Proceedings, Skövde, Sweden, (2006), ISBN 91-85643-17-3. pdf