My question came about when I was correlating some real world data to the output of the equation, and was out by a factor of 10. Milliken's equation states the result in rad/g, however I believe the acceleration units shouldn't be normalized to g's? So for example, if I'm working in metric units, the result should be rad/ms-2?
The force due to the lateral acceleration is F=MAy, with M being the unsprung mass, and Ay being the lateral acceleration (actual acceleration, not g's). This creates a moment about the roll axis which is H distance below the CG: Moment = FH = MAyH. So, if we have roll stiffness K in Nm/deg, then Moment/K = MAyH/K, so deg/Ay = MH/K. At no stage is Ay normalized to arrive at this equation.
Have I missed something obvious?