Robust Locator Layout Design for B-pillar Based on Taguchi Experiment

For solving the existing problems of assembly quality of B-pillar, a robust design approach was utilized to optimize locator layout of Reinf Pillar and Side Beam Threshold so that the assembly deviation of B-Pillar was minimized. Taguchi orthogonal experiment was carried out to perform the idea by taking the locators coordinate as design parameters, taking the manufacturing and positioning deviation of par ts as noise factors. The gap value between Reinf Pillar and Side-body Panel was considered as the measurement index. Furthermore, based on the establishment of robust evaluation function and signal-to-noise ratio formula, the robust layout scheme was determined. The 3DCS(Dimensional Control Systems), a tolerance simulation software, was running, and the simulation analysis results show that robust design greatly reduces the assembly gap, effectively solving the problem of large assembly deviation and quality fluctuation of B-Pillar.

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