| Summary: | 碩士 === 逢甲大學 === 機械工程學所 === 96 === In this paper, we transfer the structure parameters measured by the experimental study of the back pull type impact sustention systems【1】 into the equivalent speed, the equivalent friction coefficient, and the equivalent spring constant. Then conduct the impact analysis by the package of ANSYS/LS-DYNA with those transferred parameters, to observe the situation of the deformation, the phenomena of the stress transfer, and the distribution of the stress under the impact of outside forces. And investigate the difference between the cases of the vehicle body that sustains impact force with and without the operation of our proposed back pull type impact sustention systems, it shows that this back pull type impact sustention systems can efficiently promote the anti-impact capability to as high as 48.94％. Compare the results of simulations and the experiments, it shows that without the action of this back pull type impact sustention systems the percentage of match is about 85.99％, while with the action of this back pull type impact sustention systems the percentage of match is about 97.53％. It demonstrates that the results of simulations and the experiments have very high percentage of match. Also it shows that this back pull type impact sustention systems can efficiently sustain the impact stress and highly promote the anti-impact capability.
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