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Effects of nonlinear dynamics in engineering systems
KTH, Superseded Departments, Vehicle Engineering.ORCID iD: 0000-0002-1426-1936
2001 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH , 2001. , 19 p.
Series
Trita-FKT, 2001:03
Keyword [en]
Nonlinear dynamics, Impacts, Subsystems, Chaos, Irregular, Behaviour, Printer Dynamics, Suspensions, Coupled systems
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-1208OAI: oai:DiVA.org:kth-1208DiVA: diva2:7000
Note
QC 20100621Available from: 2001-04-02 Created: 2001-04-02 Last updated: 2010-06-21Bibliographically approved
List of papers
1. Braille printer Dynamics
Open this publication in new window or tab >>Braille printer Dynamics
1999 (English)In: Proceedings of the ASME Design Engineering Technical Conferences, 1999Conference paper, Published paper (Other academic)
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-13494 (URN)
Conference
ASME Design Engineering Technical Conferences
Note

QC 20100621

Available from: 2010-06-21 Created: 2010-06-21 Last updated: 2016-09-27Bibliographically approved
2. Nonlinear dynamics of parts in engineering systems
Open this publication in new window or tab >>Nonlinear dynamics of parts in engineering systems
2000 (English)In: Chaos, Solitons & Fractals, ISSN 0960-0779, E-ISSN 1873-2887, Vol. 11, no 15, 2413-2428 p.Article in journal (Refereed) Published
Abstract [en]

By definition, chaotic vibrations arise from nonlinear deterministic physical systems or non-random differential or difference equations. In numerous engineering systems there exist nonlinearities which might affect the dynamic behaviour of the system. The objectives in this work are to summarise previous work on nonlinear dynamics of engineering parts and products and to investigate if research on how nonlinear parts can effect the total behaviour of the products have been performed. It is found that common nonlinear parts are machine elements such as gears, bearings, brakes and suspension systems. The most studied part in a product is of impact hammer type. The products are ordinary products, from searing machines, drilling machines and printers to railway vehicles. In order to be able to design reliable products the methodology should be further developed to enable use by engineers. One can conclude that the effect of nonlinear parts on the total system behaviour is still a fairly uninvestigated area.

Place, publisher, year, edition, pages
Elsevier, 2000
Keyword
SQUEEZE FILM DAMPER, GEAR-PAIR, INJECTION PARAMETERS, STABILITY ANALYSIS, IMPACT RESPONSE, VIBRATION, MOTION, BEHAVIOR, CHAOS, MODEL
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-13495 (URN)10.1016/S0960-0779(00)00016-3 (DOI)000089455100002 ()
Note

QC 20100621

Available from: 2010-06-21 Created: 2010-06-21 Last updated: 2017-12-12Bibliographically approved
3. Nonlinear dynamic behaviour of coupled suspension systems
Open this publication in new window or tab >>Nonlinear dynamic behaviour of coupled suspension systems
2003 (English)In: Meccanica (Milano. Print), ISSN 0025-6455, E-ISSN 1572-9648, Vol. 38, no 1, 43-59 p.Article in journal (Refereed) Published
Abstract [en]

A two degrees of freedom model of two coupled suspension systems characterised by piecewise linear stiffness has been studied. The system, representing a pantograph current collector head, is shown to be sensitive to changes in excitation and system parameters, possessing chaotic, periodic and quasiperiodic behaviour. The coupled system has a more irregular behaviour with larger motions than the uncoupled suspension system, indicating that the response from the uncoupled suspension system cannot be used as a worst case measure. Since small changes in system parameters and excitation affect the results drastically then wear and mounting as well as actual operating conditions are crucial factors for the system behaviour.

Place, publisher, year, edition, pages
Springer, 2003
Keyword
pantograph current collector head, coupled suspensions, impact, nonlinear dynamic behaviour, OSCILLATOR, MOTION
National Category
Engineering and Technology
Identifiers
urn:nbn:se:kth:diva-13496 (URN)10.1023/A:1022067317220 (DOI)000180561900005 ()2-s2.0-0037273769 (Scopus ID)
Note

QC 20100621

Available from: 2010-06-21 Created: 2010-06-21 Last updated: 2017-12-12Bibliographically approved

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Jerrelind, Jenny

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