Investigation of the structural dynamics of vehicle doors to optimise the tonal resonance during the door closing process
Objective:
- Detailed analysis of the structural dynamics of vehicle doors of different vehicles (BMW & competition) using laser Doppler vibrometry
- Identification of potentials for optimising the structure-induced door closing acoustics
- Formulation of concrete requirements for the virtual/early project phase
Process/working steps:
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Development and definition of methods for measuring the structural dynamics of vehicle doors using laser Doppler vibrometry
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Creation of a broad data basis (BMW & competition)
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Identification of the correlation between sheet metal field vibrations and tonal resonance during the door closing process
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Statistical analysis and presentation of the results
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Definition of criteria to fulfil the highest demands in terms of subjectively perceived value
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Identification and analysis of influencing parameters/optimisation options
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Continuous comparison and coordination with the simulation (EG-4xx)
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Formulation of concrete requirements for the virtual or early project phase
Resources:
- Capacities EP-500/EG-4xx + possibly others
- Capacities sound measurement room/measurement technology (in particular 1D-PSV/integral shaker)
- Capacities BMW and competition vehicles
- Test objects (e.g. vehicle doors for modification)
