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II) 3-DOF Torsional System Using matrix algebra, analyze the natural frequencies of the following 3-DOF shaft system. First setup the equations of motion, express the system in matrix form, and then use MATLAB to calculate the natural frequencies and the mode shapes. K2 K3 K4 J1 J2 J3 Data: J: = 500 lb.in.s- J2 750 lb.in.s2 J3 1000 lb.in.s? K1-2x106 lb.in/rad K2 106 Ib.in/rad K3 106 Ib.in/rad K4 2x106 lb.in/rad

MatLab analysis preferred, but please show the process.

engineering   Mechanical-Engineering   
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equation of motion- 26 丁 using Values- o Looo k10 L o - 10

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