Swept Sine on Random

My current experience with Creo simulation is primarily random vibration and dynamic time analyses, but have recently been required to perform sinusoidal content, in particular, a swept sine on random vibration profile.  How would this type of analysis be performed with Creo?  I would guess that one would have to either convert one into the realm of the other (sine into random or vice versa) or to apply them as separate analyses and somehow evaluate a combination of results?  If anyone has done such analysis or can point me in a direction your help would be greatly appreciated.