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Effects of nonlinear dynamics in engineering systems
KTH, Tidigare Institutioner                               , Farkostteknik.ORCID-id: 0000-0002-1426-1936
2001 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Ort, förlag, år, upplaga, sidor
Stockholm: KTH , 2001. , s. 19
Serie
Trita-FKT ; 2001:03
Nyckelord [en]
Nonlinear dynamics, Impacts, Subsystems, Chaos, Irregular, Behaviour, Printer Dynamics, Suspensions, Coupled systems
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:kth:diva-1208OAI: oai:DiVA.org:kth-1208DiVA, id: diva2:7000
Anmärkning
QC 20100621Tillgänglig från: 2001-04-02 Skapad: 2001-04-02 Senast uppdaterad: 2010-06-21Bibliografiskt granskad
Delarbeten
1. Braille printer Dynamics
Öppna denna publikation i ny flik eller fönster >>Braille printer Dynamics
1999 (Engelska)Ingår i: Proceedings of the ASME Design Engineering Technical Conferences, 1999Konferensbidrag, Publicerat paper (Övrigt vetenskapligt)
Nationell ämneskategori
Maskinteknik
Identifikatorer
urn:nbn:se:kth:diva-13494 (URN)
Konferens
ASME Design Engineering Technical Conferences
Anmärkning

QC 20100621

Tillgänglig från: 2010-06-21 Skapad: 2010-06-21 Senast uppdaterad: 2016-09-27Bibliografiskt granskad
2. Nonlinear dynamics of parts in engineering systems
Öppna denna publikation i ny flik eller fönster >>Nonlinear dynamics of parts in engineering systems
2000 (Engelska)Ingår i: Chaos, Solitons & Fractals, ISSN 0960-0779, E-ISSN 1873-2887, Vol. 11, nr 15, s. 2413-2428Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
Elsevier, 2000
Nyckelord
SQUEEZE FILM DAMPER, GEAR-PAIR, INJECTION PARAMETERS, STABILITY ANALYSIS, IMPACT RESPONSE, VIBRATION, MOTION, BEHAVIOR, CHAOS, MODEL
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
urn:nbn:se:kth:diva-13495 (URN)10.1016/S0960-0779(00)00016-3 (DOI)000089455100002 ()
Anmärkning

QC 20100621

Tillgänglig från: 2010-06-21 Skapad: 2010-06-21 Senast uppdaterad: 2017-12-12Bibliografiskt granskad
3. Nonlinear dynamic behaviour of coupled suspension systems
Öppna denna publikation i ny flik eller fönster >>Nonlinear dynamic behaviour of coupled suspension systems
2003 (Engelska)Ingår i: Meccanica (Milano. Print), ISSN 0025-6455, E-ISSN 1572-9648, Vol. 38, nr 1, s. 43-59Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
Springer, 2003
Nyckelord
pantograph current collector head, coupled suspensions, impact, nonlinear dynamic behaviour, OSCILLATOR, MOTION
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
urn:nbn:se:kth:diva-13496 (URN)10.1023/A:1022067317220 (DOI)000180561900005 ()2-s2.0-0037273769 (Scopus ID)
Anmärkning

QC 20100621

Tillgänglig från: 2010-06-21 Skapad: 2010-06-21 Senast uppdaterad: 2017-12-12Bibliografiskt granskad

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