You can use the T-slot aluminum extrusions where vibrations are present but with some design considerations. First, the aluminum extrusion should be strong enough to withstand the vibrations. That means being safe from breakage or deformation. Using thicker T-slot aluminum extrusions would be a straightforward solution where the amount of vibrations is known. There are other ways of reducing the vibration effects on the structure. Consider incorporating isolators and other techniques to minimize the transfer of vibrations within the structure.