Vehicle Ride 1

i.Recommended rear sprung mass frequency based on speed and wheelbase at design condition

Time delay= Wheelbase/Speed

=2.7/26.8224

=0.1006 Sec

The front sprung mass natural frequency target at design is 1.15 Hz

Time for front at target frq = 1/1.15

=0.8695

So require time at rear =Time for front - time delay

=0.8695-0.1006

=0.7689

The rear sprung mass natural frequency :

=1/rear time

=1.3005 Hz

I have attached excel sheet for bump profile for all three conditions for front and rear.