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PETScFEM Results: Truss network simulations
| This animation shows a network of 20x20x20 cubes. For each cube truss was inserted at each edge, face diagonal, and cube diagonal (it makes a total of 28 trusses for each cube). The cube has side of length 1, and I two cylinder holes along axis `x' and `y' of radius R=0.4 have been pierced. The boundary conditions are: the bottom of the cube is fixed (all displacements u,v,w=0) and at the top I imposed a constant `w' displacement, and free slide in the x,y directions. The vertical displacement increases in time from 0 to 0.15. The color represents deformation of the trusses (blue=traction, red=compression). | |
| This animation shows a structure of 1746 trusses. The left end of the array has an imposed harmonic motion (see more truss results). | |
| Same as above but in this case frequency is higher so that more wavelengths can be observed | |
| The network is initially moving to the right and then the base is suddenly stopped. Due to the inertia, the columns starts oscillating. | |
| In this case the nodes at the bottom of the network are imposed to perform harmonic motion in time. | |
| Same as above but in this case frequency is higher so that more wavelengths can be observed | |
| In this case the base of the network (at the left) is rotating about its axis. | |
| Same as above but in this case frequency is higher so that more wavelengths can be observed. | |
| In this case the nodes at the bottom of the network are imposed to perform a composed motion of translation and rotation. The basis translates in a circular path of radius 1 and angular velocity omega=4.8RPM. At the same time the basis performs a rotation with variable angular velocity from -60RPM to 60RPM. (Due to frame rate sampling the observed frequencies may be different). |
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Topic revision: r6 - 20 Sep 2010, MarioStorti
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