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为了解决关键结构螺栓组的载荷不均和超载断裂问题， 利用ＮｉＴｉ 合金的压缩拟弹性功能，设计了一种智能传力垫， 分析了其调节载荷的功能特性， 并在内燃机车上进行了实际应用与测试。结果表明： ＮｉＴｉ 合金智能传力垫可以使螺栓组各螺栓间的受力不均匀度得到调整， 动载荷降低。因而，具有良好的自动均载限载防断功能， 可以大幅度提高螺栓连接的安全性和可靠性。
In order to solve the problem of load imbalance and overload breakage in the key structural bolts, a smart transmission pad was designed based on the compressive pseudo-elastic function of NiTi alloy. The functional characteristics of the load regulation were analyzed. Application and testing. The results show that the NiTi alloy intelligent transfer pad can adjust the stress non-uniformity among the bolts in the bolt group and reduce the dynamic load. Therefore, it has a good automatic load limit and overload protection function, can greatly improve the safety and reliability of the bolt connection.