Module 2: Excitation reduction at source and factors affecting vibration level
  Lecture 7: Detuning and Decoupling
 

Decoupling

  • In an assembly process, an attempt should be made such that the natural frequencies of the various components and the assembly itself are detuned from one another.

  • The technique of decreasing the number of coupled resonators in a system is known as decoupling.

  • A complex system like control board of automobiles consists of many subsystems. It is always attempted that the subsystems are integrated mechanically in such a way that the whole system behaves as a single united system with a natural frequency beyond excitation frequency level.

  • The methods of detuning and decoupling we have suggested are more suitable for a system subjected to broad-band excitation. When using any such method, it should be ensured that the new natural frequencies are not more harmful than the original ones.