• Nils Koppels Allé, 404, 122

    2800 Kgs. Lyngby

    Denmark

1990 …2020

Research output per year

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Research Output

2010

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

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)

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

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

Motions of elastic solids in fluids under vibration

Sorokin, V. S., Blekhman, I. I. & Thomsen, J. J., 2010, In : Nonlinear Dynamics. 60, 4, p. 639-650

Research output: Contribution to journalJournal articleResearchpeer-review

2009

Phase shift effects for vibrating pipes conveying pulsating fluid

Enz, S. & Thomsen, J. J., 2009, Proceedings of the 7th EUROMECH Solid Mechanics Conference (ESMC2009). p. 251

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

Predicting phase shift of elastic waves in pipes due to fluid flow and imperfections

Thomsen, J. J., Dahl, J., Fuglede, N. & Enz, S., 2009, Proceedings of the 16th International Congress on Sound and Vibration (ICSV16): (CD-ROM proceedings). Kraków, Poland: International Institute of Sound and Vibration, p. 1-8

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

Using high-frequency vibrations and non-linear inclusions to create metamaterials with adjustable effective properties

Lazarov, B. S. & Thomsen, J. J., 2009, In : International Journal of Non-Linear Mechanics. 44, 1, p. 90-97

Research output: Contribution to journalJournal articleResearchpeer-review

2008

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)

Near-elastic vibro-impact analysis by discontinuous transformations and averaging

Thomsen, J. J. & Fidlin, A., 2008, In : Journal of Sound and Vibration. 311, 1-2, p. 386-407

Research output: Contribution to journalJournal articleResearchpeer-review

File
299 Downloads (Pure)

Nontrivial effects of high-frequency excitation for strongly damped mechanical systems

Fidlin, A. & Thomsen, J. J., 2008, In : International Journal of Non-Linear Mechanics. 43, 7, p. 569-578

Research output: Contribution to journalJournal articleResearchpeer-review

Phase shift effects for fluid conveying pipes with non-ideal supports

Dahl, J. & Thomsen, J. J., 2008, Proceedings of XXII ICTAM, 25–29 August 2008, Adelaide, Australia. Adelaide, Australia: University of Adelaide, 2 p.

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

Using strong nonlinearity and high-frequency vibrations to control effective mechanical stiffness

Thomsen, J. J., 2008, Proceedings of the 6th EUROMECH Nonlinear Dynamics Conference (ENOC 2008). Andrievsky, B. R. & Fradkov, A. L. (eds.). St. Petersburg. Russia: European Mechanics Society, 9 p.

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

Using strong nonlinearity and high-frequency vibrations to control effective properties of discrete elastic waveguides

Lazarov, B. S., Thomsen, J. J. & Snaeland, S. O., 2008, Proceedings of the 6th EUROMECH Nonlinear Dynamics Conference (ENOC 2008). Andrievsky, B. R. & Fradkov, A. L. (eds.). St. Petersburg. Russia: European Mechanics Society, 6 p.

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

1 Downloads (Pure)
2007

41560 Svingningslære: Opgaver & Løsninger

Thomsen, J. J., 2007

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

Nontrivial effects of high-frequency excitation for strongly damped mechanical systems

Fidlin, A. & Thomsen, J. J., 2007, Kgs. Lyngby, Copenhagen: Technical University of Denmark. 16 p. (DCAMM Report; No. 731).

Research output: Book/ReportReport

Using nonlinearity and spatiotemporal property modulation to control effective structural properties: dynamic rods

Thomsen, J. J. & Blekhman, I. I., 2007, Proceedings of COMPDYN 2007: ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Rethymno, Crete: National Technical University of Athens

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

2006

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

Vibrations and Stability: Solved Problems

Thomsen, J. J., 2006, 6th ed. Copenhagen: MEK. 104 p.

Research output: Book/ReportBook

2005

Slow high-frequency effects in mechanics: problems, solutions, potentials

Thomsen, J. J., 2005, Kgs. Lyngby: Technical University of Denmark. 26 p. (DCAMM Report; No. 701).

Research output: Book/ReportReport

Slow high-frequency effects in mechanics: problems, solutions, potentials

Thomsen, J. J., 2005, In : International Journal of Bifurcation and Chaos in Applied Sciences and Engineering. 15, 9, p. 2799–2818

Research output: Contribution to journalConference articleResearchpeer-review

2004

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

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

Non trivial effect of strong high-frequency excitation on a nonlinear controlled system

Fidlin, A. & Thomsen, J. J., 2004, XXI Int. Congress of Theoretical and Applied Mechanics. Warsaw: IPPT PAN, 2 p.

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

Non-trivial effects of high- frequency excitation for pendulum type systems

Jensen, J. S., Thomsen, J. J. & Tcherniak, D. M., 2004, Selected Topics in Vibrational Mechanics. Blekhman, I. I. (ed.). Singapore: World Scientific, p. 73-137 409 p. (Series A on Stability, Vibration, and Control of Systems).

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

Vibrations and Stability: Solved Problems

Thomsen, J. J., 2004, 5.ed ed. DTU Mekanik. 100 p.

Research output: Book/ReportBook

2003

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

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

Strange effects of strong high-frequency excitation

Thomsen, J. J., 2003, Proceedings of Fifth International Conference on Modern Practice in Stress and Vibration Analysis. Uetikon-Zuerich: Trans Tech Publications, p. 3-10 (Materials Science Forum, Vol. 440-441).

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

Theories and experiments on the stiffening effect of high-frequency excitation for continuous elastic systems

Thomsen, J. J., 2003, In : Journal of Sound and Vibration. 260, 1, p. 117-139

Research output: Contribution to journalJournal articleResearchpeer-review

Vibrations and Stability: Advanced Theory, Analysis, and Tools

Thomsen, J. J., 2003, Berlin - Heidelberg - New York: Springer Verlag. 404 p.

Research output: Book/ReportBook

2002

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

DTU Course 41811: Experimental Mechanics. Exercise Instructions & Compendium

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

Research output: Book/ReportCompendium/lecture notes

Post-critical behavior of Beck`s column with a tip mass

Andersen, S. B. & Thomsen, J. J., 2002, In : International Journal of Non-Linear Mechanics. Vol. 37, 1, p. pp. 135-151

Research output: Contribution to journalJournal articleResearchpeer-review

Some general effects of strong high-frequency excitation: stiffening, biasing, and smoothening

Thomsen, J. J., 2002, In : Journal of Sound and Vibration. Vol. 253, No. 4, p. pp. 807-831

Research output: Contribution to journalJournal articleResearchpeer-review

Vibrations and Stability - Order & Chaos, Solved Problems

Thomsen, J. J., 2002

Research output: Book/ReportCompendium/lecture notes

2001

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

Predicting vibration-induced displacement for a resonant friction slider

Fidlin, A. & Thomsen, J. J., 2001, In : European Journal of Mechanics A - Solids. Vol. 20, 1, p. pp. 155-166

Research output: Contribution to journalJournal articleResearchpeer-review

2000

Stiffening effects of high-frequency excitation: experiments for an axially loaded beam

Jensen, J. S., Tcherniak, D. & Thomsen, J. J., 2000, In : Journal of Applied Mechanics. 67, 2, p. 397-402

Research output: Contribution to journalJournal articleResearchpeer-review

Vejledning til Øvelser i Eksperimentel Faststofmekanik

Nielsen, A. G. & Thomsen, J. J., 2000, 53 p.

Research output: Book/ReportBook

Vibration-induced displacement using high-frequency resonators and friction layers

Thomsen, J. J., 2000, Proceedings of the IUTAM / IFToMM Symposium on Synthesis of nonlinear Dynamical Systems, Riga, 1998. Dordrecht: Klüwer Academic Press, p. 237-247

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

Vibrations and Stability - Order & Chaos, Solved Problems

Thomsen, J. J., 2000, 84 p.

Research output: Book/ReportBook

Using Fast Vibrations to Quench Friction-induced Oscillations

Thomsen, J. J., 1999, In : Journal of Sound and Vibration. 228, 5, p. 1079-1102

Research output: Contribution to journalJournal articleResearchpeer-review

Videregaaende Databehandling (M) - Noter og Opgaver

Thomsen, J. J. & Hansen, J. M., 1999, 78 p.

Research output: Book/ReportBook

1998

Nonlinear Dynamic Interactions: Tools, Examples, Cases

Thomsen, J. J., 1998, 120 p.

Research output: Book/ReportBook