Rigid-Body Motion of Planar Mechanisms by Finite Element Method With Comparison to the Multibody Approach

• Autorzy: Hać M. , Łazęcki J.
• Języki publikacji: EN

Abstrakty

EN

In this paper the rigid-body motion of planar mechanisms (e.g. rigid rod, robotic arm, slider-crank mechanism) is considered by using two different approaches: FEM with modified truss elements named here as a stick model and the multibody method used in the engineering software (e.g. Adams, Modelica, etc.). The analysis shows that the stick model of mechanisms consisting of modified truss-type elements gives reliable results when compared to the solid model of multibody approach by using the Adams software. The presented method of description of motion of rigid mechanism can be successfully used as a preliminary calculation of mechanism motion. The method is illustrated with planar examples of mechanisms, however with the use of proper elements the method can be extended to the 3D case.

Słowa kluczowe

EN

rigid body motion; multibody dynamics; FEM; planar mechanism

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2016
• Tom: Vol. 40, No. 3
• Strony: 15--24
• Opis fizyczny: Bibliogr. 9 poz., tab., wykr.

Twórcy

autor

Hać M.

• Warsaw University of Technology, Institute of Machine Design Fundamentals

autor

Łazęcki J.

• Warsaw University of Technology, Institute of Machine Design Fundamentals

Bibliografia

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• 3. Hać, M. (1996). Dynamic analysis of flexible mechanisms by finite element method. Machine Dynamics Problems, 14:7—-91.
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• 6. Hać, M. and Osiński, J. (1995). Finite element formulation of rigid body motion in dynamic analysis of mechanisms. Computers & Structures, 57(2):213–217.
• 7. Kruszewski, J., Gawroński, W., Ostachowicz, W., Tarnowski, J., and Wittbrodt, E. (1984). Finite element method in dynamics of structures (original title in Polish: Metoda elementów skończonych w dynamice konstrukcji). Arkady Warszawa.
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• 9. Shabana, A. A. (2010). Dynamics of multibody systems. Cambridge University Press.