Yes, it does handle pile supported machinery foundations.
DYNA6.1 will show at least six modes (i.e. six natural frequencies) associated with the rigid body movements. This means you will have a natural frequency along the vertical and two horizontal directions as well as torsional and two rocking directions. After you run DYNA6.1, you can plot the responses vs. frequency at the C.G. of the machine-foundation system. These responses will display peaks. The location of the peak identifies the natural frequency.
DYNA6.1 can solve the problem you cited. It is very widely used in the industry for similar projects.
Yes, but assumes rigid body movement, which is justified in many cases depending on the dimensions of the tabletop. If you want to consider flexibility of tabletop, the program provides frequency dependent stiffness and damping constants that can be used in FE to obtain the response to the dynamic loads. In this case, DYNA6.1 can be used in the preliminary design until a foundation configuration is selected, then FE can be used to verify its suitability.
Yes, DYNA6.1 provides frequency-dependent stiffness and damping constants and accounts for the interaction between the piles (steel or concrete) and soil considering the group effect. It also accounts for the interaction of the pile cap with the adjacent soil if there is an embedded pile cap.
DYNA6.1 performs dynamic analysis to evaluate the response of shallow and deep foundations subjected to dynamic loads (harmonic, transient, impact and random). It does not perform static analysis or effective stress analysis and no liquefaction calculations. It is purely linear elastic analysis.
It can calculate the response for several machines on the same foundation, but not isolated foundations.
Indeed, DYNA6.1 is well-suited for your application and is used worldwide for this purpose.
DYNA6.1 can be used for the design of STG, CTG and fan, motor, pump, foundations.
Soil parameters required are: 1. soil shear wave velocity, Vs, which can be obtained from CPT test or through correlation with SPT N values or can be measured using seismic methods (eg. MASW); 2. unit weight of soil; 3. Poisson's ratio; and 4. damping ratio (usually estimated between 0.02 and 0.03). In addition, you input geometry of foundation (shallow or deep).