Using HOLZER METHOD determine the lowest or fundamental natural frequency of the MULTI- DEGREE-FREDOM BRANCHED TORSIONAL SYSTEM as shown in Fig.1 ₁ = 1.04 kg-m² 12= 1.508 kg-m² 13=2.09 kg-m² 14= 1.03 kg-m² 15=1.06 kg-m2 16=2.04 kg-m² K+1=10.08 N-m/rad K2 20.09 N-m/rad K+3= 20.06 N-m/rad K+4= 10.07 N-m/rad Kt5= 15.09 N-m/rad |1 K+1 12 K+2 K+5 K+4 K+3 14 13 16