• Nils Koppels Allé, 404, 122

    2800 Kgs. Lyngby

    Denmark

1990 …2020

Research output per year

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Research Output

41560 Svingningslære: Opgaver & Løsninger

Thomsen, J. J., 2007

Research output: Book/ReportCompendium/lecture notes

Analysis of Transient Vibrations for Estimating Bolted Joint Tightness

Brøns, M., Thomsen, J. J., Sah, S. M., Tcherniak, D. & Fidlin, A., 2020, Nonlinear Structures and Systems: Conference Proceedings of the Society for Experimental Mechanics Series. Brake, M. R. W. & Renson, L. (eds.). Springer, p. 21-24 (Conference Proceedings of the Society for Experimental Mechanics Series, Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Analytical approximations for stick-slip vibration amplitudes

Thomsen, J. J. & Fidlin, A., 2003, In : International Journal of Non-linear Mechanics. 38, 3, p. 389-403

Research output: Contribution to journalJournal articleResearchpeer-review

Analytical predictions for vibration phase shifts along fluid-conveying pipes due to Coriolis forces and imperfections

Thomsen, J. J. & Dahl, J., 2010, In : Journal of Sound and Vibration. 329, 15, p. 3065-3081

Research output: Contribution to journalJournal articleResearchpeer-review

Bifurcation analysis of a smoothed model of a forced impacting beam and comparison with an experiment

Elmegård, M., Krauskopf, B., Osinga, H. M., Starke, J. & Thomsen, J. J., 2014, In : Nonlinear Dynamics. 77, p. 951–966

Research output: Contribution to journalJournal articleResearchpeer-review

Book review: `Vibrational Mechanics` by I. I. Blekhman

Thomsen, J. J., 2003, In : Nonlinear Dynamics. 33, 1, p. 103-104.

Research output: Contribution to journalJournal articleResearchpeer-review

Book review: 'Theory of vibro-impact systems and applications' by V.I. Babitsky

Thomsen, J. J., 2004, In : Journal of Vibration and Acoustics. 126, 2, p. 317-318

Research output: Contribution to journalJournal articleResearch

Chaotic Dynamics of the Partially Follower-Loaded Elastic Double Pendulum

Thomsen, J. J., 1995, In : Journal of Sound and Vibration. 188, 3, p. 385-405

Research output: Contribution to journalJournal articleResearchpeer-review

Chaotic Vibrations of Non shallow Arches

Thomsen, J. J., 1992, In : Journal of Sound and Vibration. 153, 2, p. 239-258

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
411 Downloads (Pure)

Chelomei`s pendulum explained

Thomsen, J. J. & Tcherniak, D. M., 2001, In : Royal Society of London. Proceedings. Mathematical, Physical and Engineering Sciences. 457, 2012, p. 1889-1913

Research output: Contribution to journalJournal articleResearchpeer-review

Computing effective properties of nonlinear structures exposed to strong high-frequency loading at multiple frequencies

Thomsen, J. J., 2006, CD-ROM proceedings of the III European Conference on Computational Mechanics. Lisbon, p. 1-20

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

CONTINEX: A Toolbox for Continuation in Experiments

Schilder, F., Bureau, E., Santos, I., Thomsen, J. J. & Starke, J., 2014, Proceedings of the 8th European Nonlinear Dynamics Conference (ENOC 2014). Technische Universität Wien, 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
274 Downloads (Pure)

Design of multi-phase structures with optimized vibrational and wave-transmitting properties

Jensen, J. S., Sigmund, O., Thomsen, J. J. & Bendsøe, M. P., 2002, Proc. 15th Nordic Seminar on Computational Mechanics. Lund, E., Olhoff, N. & Stegmann, J. (eds.). Aalborg, Denmark: Aalborg University

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Discontinuous transformations and averaging for vibro-impact analysis

Thomsen, J. J. & Fidlin, A., 2004, Procedings of XXI Int. Congress of Theoretical and Applied Mechanics. XXI Int. Congress of Theoretical and Applied Mechanics, Vol. 2 pages on CD.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

DTU Course 41811: Experimental Mechanics. Exercise Instructions & Compendium

Thomsen, J. J., Nielsen, A. G. & Simonsen, B. C., 2002

Research output: Book/ReportCompendium/lecture notes

DTU Course 41811 Experimental Mechanics: Exercise Instructions & Compendium

Thomsen, J. J., Nielsen, A. G., Simonsen, B. C. & Berggreen, C., 2007

Research output: Book/ReportCompendium/lecture notes

Dynamics of fluid-conveying pipes: effects of velocity profiles

Enz, S. & Thomsen, J. J., 2008.

Research output: Contribution to conferencePosterResearchpeer-review

Effective properties of mechanical systems under high-frequency excitation at multiple frequencies

Thomsen, J. J., 2008, In : Journal of Sound and Vibration. 311, 3-5, p. 1249-1270

Research output: Contribution to journalJournal articleResearchpeer-review

File
159 Downloads (Pure)

Effects of quadratic and cubic nonlinearities on a perfectly tuned parametric amplifier

Neumeyer, S., Sorokin, V. & Thomsen, J. J., 2016, In : Journal of Sound and Vibration. 386, p. 327–335

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
176 Downloads (Pure)

Effects of weak nonlinearity on dispersion relations and frequency band-gaps of periodic structures

Sorokin, V. & Thomsen, J. J., 2015, Proceedings of 22nd International Congress on Sound and Vibration: Major challenges in Acoustics, Noise and Vibration Research, 2015. Crocker, M. J., Pawelczyk, M., Pedrielli, F., Carletti, E. & Luzzi, S. (eds.). The International Institute of Acoustics and Vibration (IIAV), 7 p. 989 (I)

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
108 Downloads (Pure)

Effects of weak nonlinearity on the dispersion relation and frequency band-gaps of a periodic Bernoulli–Euler beam

Sorokin, V. S. & Thomsen, J. J., 2016, In : Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 472, 2186, 22 p., 20150751.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
193 Downloads (Pure)

Eigenfrequencies and eigenmodes of a beam with periodically continuously varying spatial properties

Sorokin, V. S. & Thomsen, J. J., 2015, In : Journal of Sound and Vibration. 347, p. 14-26

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
565 Downloads (Pure)

Estimating bolt tightness from measured vibrations: Effective linearity of nonlinear boundary stiffness

Sah, S. M., Thomsen, J. J. & Fidlin, A., 2019. 2 p.

Research output: Contribution to conferenceConference abstract for conferenceResearch

Open Access
File
8 Downloads (Pure)

Estimating bolt tightness from measured vibrations: Influence of boundary nonlinearity

Sah, S. M., Thomsen, J. J., Brøns, M., Fidlin, A. & Tcherniak, D., 2018. 1 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Open Access
File
62 Downloads (Pure)

Estimating bolt tightness from measured vibrations: Influence of nonlinear boundary stiffness and damping

Sah, S. M., Thomsen, J. J., Brøns, M., Fidlin, A. & Tcherniak, D., 2018. 1 p.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Estimating bolt tightness using transverse natural frequencies

Sah, S. M., Thomsen, J. J., Brøns, M., Fidlin, A. & Tcherniak, D., 2018, In : Journal of Sound and Vibration. 431, p. 137-149

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)

Experimental Bifurcation Analysis By Control-based Continuation - Determining Stability’

Bureau, E., Santos, I., Thomsen, J. J., Schilder, F. & Starke, J., 2012, Proceedings of the ASME 2012 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference. American Society of Mechanical Engineers, p. DETC2012-70616 8 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

1 Downloads (Pure)

Experimental bifurcation analysis—Continuation for noise-contaminated zero problems

Schilder, F., Bureau, E., Santos, I. F., Thomsen, J. J. & Starke, J., 2015, In : Journal of Sound and Vibration. 358, p. 251-266

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
216 Downloads (Pure)

Experimental bifurcation analysis for a driven nonlinear flexible pendulum using control-based continuation

Bureau, E., Schilder, F., Santos, I., Thomsen, J. J. & Starke, J., 2011, 7th European Nonlinear Dynamics Conference.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
250 Downloads (Pure)

Experimental bifurcation analysis of an impact oscillator – Determining stability

Bureau, E., Schilder, F., Elmegård, M., Santos, I., Thomsen, J. J. & Starke, J., 2014, In : Journal of Sound and Vibration. 333, 21, p. 5464–5474

Research output: Contribution to journalJournal articleResearchpeer-review

Experimental bifurcation analysis of an impact oscillator - Tuning a non-invasive control scheme

Bureau, E., Schilder, F., Santos, I., Thomsen, J. J. & Starke, J., 2013, In : Journal of Sound and Vibration. 332, 22, p. 5883–5897

Research output: Contribution to journalJournal articleResearchpeer-review

Experimental bifurcation by using control-based continuation

Bureau, E., Santos, I., Thomsen, J. J., Starke, J., Schilder, F. & Elmegård, M., 2011

Research output: Non-textual formSound/Visual production (digital)Research

Open Access
File
220 Downloads (Pure)

Experimental Detection and Quantification of Structural Nonlinearity Using Homogeneity and Hilbert Transform Methods

Kragh, K. A., Thomsen, J. J. & Tcherniak, D., 2010, Proceedings of ISMA2010-USD2010.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

Open Access
File
133 Downloads (Pure)

Experimental investigation of zero phase shift effects for Coriolis flowmeters due to pipe imperfections

Enz, S., Thomsen, J. J. & Neumeyer, S., 2011, In : Flow Measurement and Instrumentation. 22, 1, p. 1-9

Research output: Contribution to journalJournal articleResearchpeer-review

Experimental testing of Timoshenko predictions of supercritical natural frequencies and mode shapes for free-free beams

Brøns, M. & Thomsen, J. J., 2019, In : Journal of Sound and Vibration. 459, 14 p., 114856.

Research output: Contribution to journalJournal articleResearchpeer-review

Experimental validation of vibro-impact force models using numeric simulation and perturbation methods

de Souza Reboucas, G. F., Santos, I. & Thomsen, J. J., 2017, Proceedings of the 9th European Nonlinear Dynamics Conference. Stépán, G. & Csernák, G. (eds.). CongressLine Ltd., p. 2

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
73 Downloads (Pure)

Experiments in nonlinear dynamics using control-based continuation: Tracking stable and unstable response curves

Bureau, E., Schilder, F., Santos, I., Thomsen, J. J. & Starke, J., 2014, Proceedings of the 8th European Nonlinear Dynamics Conference (ENOC 2014). Technische Universität Wien, 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
386 Downloads (Pure)

Flutter-based Wind Energy Harvesting

Sønderby, I. B., Hansen, M. H. & Thomsen, J. J., 2010, Torque 2010: The science of making torque from wind. European Wind Energy Association (EWEA), p. 839-849

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Frequency detuning effects for a parametric amplifier

Neumeyer, S., Sorokin, V. S., van Gastel, M. H. M. & Thomsen, J. J., 2019, In : Journal of Sound and Vibration. 445, p. 77-87

Research output: Contribution to journalJournal articleResearchpeer-review

Frequency detuning effects for parametrically and directly excited elastic structures

Neumeyer, S., van Gastel, M. H. M., Sorokin, V. & Thomsen, J. J., 2015, Proceedings of the 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Papadrakakis, M., Papadopoulos, V. & Plevris, V. (eds.). European Community on Computational Methods in Applied Sciences, Vol. 1. p. 3029-3035

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
236 Downloads (Pure)

Guiding Simulations and Experiments using Continuation

Bureau, E., Schilder, F., Avrutin, V., Starke, J., Santos, I. & Thomsen, J. J., 2011

Research output: Non-textual formSound/Visual production (digital)Research

Open Access
File
116 Downloads (Pure)

High-frequency effects in 1D spring-mass systems with strongly non-linear inclusions

Lazarov, B. S., Snaeland, S. O. & Thomsen, J. J., 2010, Dynamics and Control of Hybrid Dynamical Systems. Leonov, G., Nijmeijer, H., Pogromsky, A. & Fradkov, A. (eds.). World Scientific, p. 223-242 264 p.

Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

Jumps and bi-stability in the phase-gain characteristics of a nonlinear parametric amplifier

Neumeyer, S., van de Looij, R. & Thomsen, J. J., 2014, ENOC 2014 - Proceedings of 8th European Nonlinear Dynamics Conference. Ecker, H., Steindl, A. & Jakubek, S. (eds.). Vienna University of Technology, 2 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Kinematic and dynamic modeling and approximate analysis of a roller chain drive

Fuglede, N. & Thomsen, J. J., 2016, In : Journal of Sound and Vibration. 366, p. 447-470

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
379 Downloads (Pure)

Kinematics of roller chain drives - Exact and approximate analysis

Fuglede, N. & Thomsen, J. J., 2016, In : Mechanism and Machine Theory. 100, p. 17-32

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
1833 Downloads (Pure)

Low-dimensional approximations for Finite Element Models of mechanical systems

Elmegaard, M., Starke, J., Schilder, F. & Thomsen, J. J., 2011, 7th European Nonlinear Dynamics Conference.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
76 Downloads (Pure)

Macromechanical parametric amplification

Neumeyer, S. & Thomsen, J. J., 2013. 1 p.

Research output: Contribution to conferencePosterResearch

File
95 Downloads (Pure)

Macromechanical parametric amplification with a base-excited doubly clamped beam

Neumeyer, S. & Thomsen, J. J., 2013, 11th International Conference on Vibration Problems. Dimitrovova, Z. (ed.). 8 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
184 Downloads (Pure)

Macroscale mechanical domain parametric amplification: superthreshold pumping and optimal excitation parameters

Neumeyer, S. & Thomsen, J. J., 2012, EUROMECH Colloquium 532 : 1st International Colloquium on Time periodic systems (TPS). Current trends in theory and application. Technische Universität Darmstadt, 4 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File
82 Downloads (Pure)