A comparison of two source characterisation techniques proposed for standardisation
Automotive industry shows an increased tendency towards characterisation of vibration sources by independent quantities such as blocked forces and free velocities. Currently two independent ISO working groups propose standards for this source characterisation process. Both standards are still under development. During this presentation it is shown how the different approaches of both standards can be derived from a general Transfer Path Analysis (TPA) framework and a qualitative comparison will be made. Next, a practical study involving source characterisation and a response simulation using component TPA methodology is shown to illustrate the practical differences between the approaches and their effects when used in response synthesis. In conclusion some best practice approaches and software are discussed.