Technical Paper
Resonant Frequency Prediction of Automotive Lamps
2007-04-16
2007-01-0603
In the automotive lighting industry, car manufacturers (OEMs) require that lamps pass vibration resonance test. Failure to pass this test means that the lamp cannot be delivered to the customer. Resonant frequency is a direct cause of lamp failure due to large deformations of lamp components at a specific frequency. Resonance tests can be estimated experimentally using a vibration machine or numerically utilizing finite element analysis software. These methods estimate the resonance of the lamp after the lamp is fabricated or the complete lamp model is created on the CAD software. The objective of this paper is to teach the development of a prediction tool to estimate the resonant frequency of lamps before fabricating the lamp or creating the model on the CAD system. Design of computer experimentation (DOCE) methodology has been utilized to identify the significance level of the parameters involved to estimate the resonant frequency of a lighting system.