The advantage of the ice breakingcone for the structures was also discussed in the thesis by studying related ice-cone interaction problems.
同时对冰与 锥体作用的相关问题进行了讨论，分析了加 锥对结构抗冰的 影响。
2
To resolve the above problems we have designed a singular one-cone bit. We analyzed the bit to understand the mechanism, the result of breaking the rock, the characters of the fluid field.
The structure of tri-cone rock bit is complicated. As the cutting structure touch the stratum directly, it affects the process of breaking rock and the performance of tri-cone rock bit.