28.6 Conclusions

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Approaches to address undue vibration arising in mechanical systems have been presented in the chapter.

The first approach presented is concerned with a proper mechanical design with a view to reduce the

sources of vibration. The second approach is the possibility of including functionalities in the control

system to continuously monitor and possibly suppress vibration by terminating transmission at the

resonant frequencies. The third approach uses a low-cost monitoring device, which can trigger alarm

when excessive vibration is detected to enable corrective actions. Precision motion systems, where the

effects due to vibration will directly affect performance, will usually adopt a number of such strategies to

keep vibration level to a minimum and acceptable level.