Conclusion

From the frequency response plot, it is clear that 5% damping is best for attenuating vibration for the 5 to 10 Hz range. This damping gives the steepest roll-off for the acceleration frequency response. This low damping, however, has the highest peak response at 2.5 Hz. On the other hand, setting percent_damping to 12.5% gives the lowest peak response, but it does not roll off as rapidly in the 100 to 400 Hz range as it does for 5% damping.

You have designed the concept of a vibration isolation system for a satellite. You first checked the payload adapter frequency response in the vertical direction, finding two modes which affected the transmitted vibration.

Next, you checked the frequency response in the lateral direction. You investigated the effect of damping on the transmitted vibration and selected an optimal damping ratio.

Further design investigations could include the effects of flexible bodies to represent the solar panels. You could further improve the vibration isolation characteristics by replacing linear bushings with frequency dependent bushings. See Simcompanion Knowledge Base article at http://simcompanion.hexagon.com/KB8016260 for more information.