This is the First Mode
Clicking the STOP button on your browser should stop the animation
Click on the picture and you can download it if you need to use an external viewer.
This animation shows a 2-dimensional bar, pinned at each end, vibrating in its first mode. You can tell it's the first mode because there is only one hump. When I say "pinned" I mean that the bar can rotate at each end, but it cannot move up or down, left or right. If the ends were fixed -- that is, no rotational or translational movement -- then the mode shape would look different.
On to the Second Mode Shape Demo.
Back to the MOLA Mode Shapes Page.
This page is maintained by Ryan Simmons, at Ryan.Simmons@nasa.gov.
This page was updated on April 22, 1996.