We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A New Approach to the Rigid Finite Element Method in Modeling Spatial Slender Systems.
- Authors
Adamiec-Wójcik, Iwona; Drąg, Łukasz; Wojciech, Stanisław
- Abstract
The static and dynamic analysis of slender systems, which in this paper comprise lines and flexible links of manipulators, requires large deformations to be taken into consideration. This paper presents a modification of the rigid finite element method which enables modeling of such systems to include bending, torsional and longitudinal flexibility. In the formulation used, the elements into which the link is divided have seven DOFs. These describe the position of a chosen point, the extension of the element, and its orientation by means of the Euler angles ZYX. Elements are connected by means of geometrical constraint equations. A compact algorithm for formulating and integrating the equations of motion is given. Models and programs are verified by comparing the results to those obtained by analytical solution and those from the finite element method. Finally, they are used to solve a benchmark problem encountered in nonlinear dynamic analysis of multibody systems.
- Subjects
DEFORMATION of surfaces; FINITE element method; MANIPULATORS (Machinery); EULER angles; EQUATIONS of motion
- Publication
International Journal of Structural Stability & Dynamics, 2018, Vol 18, Issue 2, p-1
- ISSN
0219-4554
- Publication type
Article
- DOI
10.1142/S0219455418500177