Publications

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2017

D. M. Lindmark and M. Servin. Computational exploration of robotic rock loading. Submitted (2017). pdf videos

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

K. Thoeni, M. Servin, and A. Giacomini. Using non-smooth multi-domain dynamics to improve the safety on haul roads in surface mining. The V International Conference on Particle-Based Methods: PARTICLES 2017. P. Wriggers, M. Bischoff, E. Oñate, D.R.J. Owen, & T. Zohdi (Eds). pdf abstract

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

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

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

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

2016

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

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

M. Servin, J. Nordberg, and C. Lacoursière. Realtime strongly coupled vehicle-terrain dynamics. The Fourth Joint International Conference on Multibody System Dynamics (IMSD 2016), Montréal, Canada, May 29–June 2, 2016.

2015

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

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

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

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

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

2014

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

C. Lacoursière and T. Sjöström. Variational Time Stepping Method for Analytical System Dynamics Models. 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

C. Lacoursière, F. Nordfeldth, and M. Linde. A partitioning method for parallelization of large systems in realtime. 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

J. Nordberg, M. Servin, and U. Bergsten. Modeling and validation of an elastoplastic terrain model for simulation of forestry machines. 11th World Congress on Computational Mechanics (WCCM XI), July 20 - 25, 2014, Barcelona, Spain (2014). abstract

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

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

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

2013

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

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

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

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

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

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

2012

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

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

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

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

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

2011

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

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

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

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

K. Bodin, C. Lacoursière, and M. Servin. Constraint fluids. 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

M. Servin, C. Lacoursière, and K. Bodin. Hybrid, multi-resolution wires with massless frictional contacts. 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

2010

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

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

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

2009

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

2008

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

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

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

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

2007

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

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

C. Lacoursière. A Parallel Block Iterative Method for Interactive Contacting Rigid Multibody Simulations on Multicore PCs. 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

2006

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

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