Please tell me how to create boundary system of modal analysis as my picture at attachment below by using normal mode modul (sol103). My point is we do by some exciter (hummer) position at each case. Now we assume the object as a plate with 300x300x5; E = 72,400 ; v = 0.33 ; density = 2.67E-9. Postition of hummer : 1. at center of plat, 2. at one of the corner of the plate. Hopefully this will give different value of frequency at each position.
