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Lifting simulation for a CubeSat. Linear Dynamic/Base Excitation or Static/Gravity Force?

Question asked by Chris Jan on Mar 2, 2018
Latest reply on Mar 5, 2018 by Bill McEachern

I'm trying to simulate the launch of  CubeSat which is essentially a lifting simulation.

Now I am having trouble as to which force to use.

 

One option is using Linear Dynamic->Base Excitation Force.

Second option is using Static->Gravity Force.

 

In this paper (page 68) https://web.wpi.edu/Pubs/E-project/Available/E-project-031212-121649/unrestricted/Mechanical,_Power,_and_Thermal_Subsyst…  Option 1 is used.

The second option would be the more logical option I'm guessing though.

 

I've ran the simulation using both methods and I get very similar but slightly different results. Which force should I use to best simulate static loads acting on the CubeSat during launch.

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