Changes

Shock loading also occurs due to the acceleration of launch vehicle but just to get an idea, consider that you are sitting in a bus and it starts accelerating and you just get pushed backwards. What happens to you in the bus is just a very miniature version of what happens on the launch vehicle. <br \>

Launch vehicle experiences increasing acceleration along with vibration. Satellite acceleration changes with frequency of vibration of satellite.

* We need to ascertain that the maximum stress on the components is not greater than the yield strength of material. More precisely maximum stress should be within some factor of safety of the yield strength.

* If maximum stress exceeds yield strength then we have to make changes to maintain maximum stress within the desired range.