Transfer Path Analysis (TPA) provides the route of the noise or vibration through the structure, not just which sources cause the response, but the route taken. This is useful for developing and improving components like engine anti-vibration mountings or suspension anti-vibration mountings.
Engineers can see which anti vibration mounts need to be improved as they can visualise which anti-vibration mountings are passing the highest level of vibration from source to response.
Source Contribution Analysis (SCA) provides the results of which sources may be causing the vibration or sound at the response position. It does not reveal which paths the vibration or sound may be travelling from sources to the response.
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