Question

4)In large disk drive systems containing linear actuators, the motion is control by a voice-coil motor (VCM), as shown in Figure 3. The force F produced is proportional to the current i in the coil. The link between the head (M2) and the servo body (M1) is flexible with spring constant K. Draw a block diagram of the system and obtain the transfer function from input ec to outputy The relevant equations are given below. d'y dt2 Mechanical system: F-M1 -K(q-y) and 0-M2 -K(y-q) Current flowing in magnetic field produces the force: F-ai Motion in magnetic field produces the force: ecoil a2 Electrical circuit: L… + Ri = ec-ecoil dt2 dq dt di dt erve seret Veice ou Ced M2 Friction is negligible Figure 3

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Answer 1

So (s Yis) k. YIS

Giiven alt dlt