Abstract
This chapter discusses the computer simulation methodology to predict the crack initiation fatigue life cycle of automotive Adaptive Front Lighting System (AFLS) under vibration. The AFLS improves visibility by changing the beam pattern of an automotive headlamp in accordance with various driving conditions. As the mechanical linkages consisting of projection module of the AFLS are slender and light-weight for functionality, packaging and fuel economy, the AFLS might exhibit nonlinear dynamic behavior by external vibration that the traditional Finite Element (FE) based frequency response analysis fails to simulate. By including kinematic behavior such as the leveling and the swiveling of the projection module and the nonlinear stiffness of pivot sockets into analysis model, the combination of Finite Element Analysis (FEA) and flexible multi-body dynamics (MBD) analysis can show more realistic vibration characteristics and predict the reliable fatigue life cycle of the AFLS.
F2012-E12-031
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© 2013 Springer-Verlag Berlin Heidelberg
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Lee, Y.G., Choi, S., Jeon, T.R. (2013). Vibration Fatigue Analysis of Adaptive Front Lighting System. In: Proceedings of the FISITA 2012 World Automotive Congress. Lecture Notes in Electrical Engineering, vol 196. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33738-3_39
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DOI: https://doi.org/10.1007/978-3-642-33738-3_39
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