| IGBT密封结构中螺栓预紧力及分布间距对橡胶密封性能的影响 |
| Effect of Preload and Distance Distribution of Bolts on Rubber Sealing Performance in IGBT Sealing Structure |
| 投稿时间：2019-05-22 修订日期：2019-05-22 |
| DOI：10.12136/j.issn.1000-890X.2019.09.0679 |
| 中文关键词: 螺栓 预紧力 分布间距 橡胶密封圈 接触应力 密封性能 有限元分析 |
| 英文关键词: bolt preload distance distribution rubber sealing ring contact stress sealing performance finite element analysis |
| 基金项目: |
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| 中文摘要: |
| 对绝缘栅双极型晶体管(IGBT)密封结构中螺栓预紧力及分布间距对橡胶密封性能的影响进行有限元分析。结果表明：螺距对称中心截面接触应力最小，靠近螺栓位置接触应力较大，并出现峰值；在螺距一定的情况下，螺栓预紧力达到一定值后，接触应力趋于稳定；在同一预紧力下，螺栓数量增加，螺距减小，接触应力增大。工程中要合理设置IGBT密封结构的螺距来保证橡胶密封性能。 |
| 英文摘要: |
| The influence of preload and distance distribution of the bolts on rubber sealing performance
in insulated gate bipolar transistor（IGBT） sealing structure was analyzed by finite element method. The
results showed that the contact stress of the symmetrical center section of the pitch was the smallest，and the
contact stress near the bolt position was larger，and there was a peak value. When the pitch was fixed and the
preload reached a certain value，the contact stress tended to be stable. Under the same preload，the number
of the bolts increased，the pitch decreased and the contact stress increased. In order to ensure the sealing
performance of rubber，the pitch of IGBT sealing structure should be set appropriately in engineering. |
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