Temat: kinematic model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Ratcheting simulation in a titanium-steel bimetallic plate based on the chaboche hardening model
Autorzy:: Karolczuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/386621.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: ratcheting phenomenon
explosive welding
cyclic loading
the chaboche kinematic hardening model
obciążenie zmęczeniowe
bimetal
model Chaboche'a
Opis:: The paper presents the results of fatigue loading simulation applied to bimetallic model using the Chaboche kinematic hardening rule. Three cases of simulations were performed: (i) without residual stresses; (ii) considering residual stresses and (iii) considering asymmetrical geometry of bimetal, i.e. cross area reducing under tension period of loading. Experimental results exhibit the ratcheting phenomenon in titanium-steel bimetallic specimens. The observed ratcheting phenomenon could be explained by the third case of simulation which is supported by detection of microcracks in the vicinity of welded area.
Źródło:: Acta Mechanica et Automatica; 2016, 10, 4; 265-270
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Displacement analysis of the human knee joint based on the spatial kinematic model by using vector method
Autorzy:: Knapczyk, J.
Góra-Maniowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/386514.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: human knee joint model
kinematic analysis
parallel mechanism
constraint equations
vector method
Opis:: Kinematic model of the human knee joint, considered as one-degree-of-freedom spatial parallel mechanism, is used to analyse the spatial displacement of the femur with respect to the tibia. The articular surfaces of femoral and tibia condyles are modelled, based on selected references, as spherical and planar surfaces. The condyles are contacted in two points and are guided by three ligaments modelled as binary links with constant lengths. In particular, the mechanism position problem is solved by using the vector method. The obtained kinematic characteristics are adequate to the experimental results presented in the literature. Additionally, the screw displacements of relative motion in the knee joint model are determined.
Źródło:: Acta Mechanica et Automatica; 2017, 11, 4; 322-327
1898-4088
2300-5319
Pojawia się w:: Acta Mechanica et Automatica
Dostawca treści:: Biblioteka Nauki

Artykuł

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