| Summary: | 碩士 === 國立成功大學 === 機械工程學系 === 107 === The vehicle accidents have become more frequent than the past in cities with high population. Among these vehicle accidents, the most fatal one is the side impact vehicle accidents. Therefore, the passenger protection issue about side impact can’t be ignore. Many countries and institution have established relevant regulation and the ways to test the vehicle as constraint to automotive manufacture forcing them to pay attention to this issue. Thus, there have been many design for side impact vehicle. No matter which design, the purposes are absorbing the energy and avoiding the impactor intrusion.
The main topic of this study is to improve the energy absorbing capabilities of side impact bars design and validation. This study is divided into two parts to discuss the new design.
The first part is concerning about the absorbing behavior about the side impact bars with different shape. The second part is concerning about analysis the new absorbing equipment The absorbing equipment refer the principle of cam and replace some part of cam with soft material. Both of these parts adopt the finite element method to simulation. In addition, at the second part, the study adopt the interpolation to define the best size of new design and estimate the frictional energy. At last, combine these two parts. This study provides the different design match for different intent, such as the best compression displacement and the best absorbing capabilities.
Keyword: Side Impact Bars, Cam, Finite Element Method, Interpolation
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