NEW METHOD TO DETERMINE RTM VENT
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摘要: 提出了一个决定溢料口的快速算法。在这个算法中,采用已被广泛使用的有限元模型,假设树脂首先注满离注射口近的节点,再根据溢料口的位置安排要求避免干点的出现这一点来决定其位置。本方法的关键是如何计算复杂模型中的两点之间沿形面的距离,采用一种新的方法来计算沿复杂表面的两点之间的距离。计算的实例表明该方法确定溢料口位置的快速及有效。Abstract: Gate/vent locations are one of the most important variables in RTM mold design. This paper proposed an approach to arrange the gates and vents based on the distance of the mesh. With the assumption that the resin first fills the nodes near the gates, the vent locations required to avoid trapping air bubbles were determined. The results show that the proposed approach is efficient and effective.
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