1.Faculty of Mechanical and Electrical Engineering,Kunming University of Science and Technology;2.Luoyang Changxing Mechanical Electrical Equipment Engineering CO
The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)
目的 在不同钻型和钻削参数下对骨骼进行钻削力学和热学分析，旨在降低钻骨过程中的钻削力和钻削温度,减小对周围骨组织的损伤。方法 通过有限元仿真软件AdvantEdge建立骨骼钻削模型并与猪股骨钻削实验对比，分析标准麻花钻与三种标准群钻在不同转速和进给速度下的仿真与实验结果。结果 仿真与实验对比发现钻头刃型、钻头转速和进给速度对钻削力和钻削温度的影响趋势一致,建立的仿真模型是可信的。结论 相同钻削条件下，钻橡胶群钻比标准麻花钻的钻削力和钻削温度更低。这些分析为群钻在骨折手术中的应用提供了理论依据。
Objective The drilling mechanical and thermal analysis of bones is carried out under different drilling bits and drilling parameters aiming at reducing the drilling force and drilling temperature in the drilling process and decreasing the damage of surrounding bone tissue. Methods The bone drilling model is established by finite element simulation software AdvantEdge. Compared with the pig femur drilling experiment,this paper analyzes the simulated and experimental results of standard twist drill and three standard multi-facet drills at different speeds and feed rates. Results Comparison of the simulation and experiment shows that it is consistent that the influence of the drill bit, the drilling speed and the feed rate to the drilling force and the drilling temperature and the established simulation model is credible. Conclusions Under the same drilling conditions, multi-facet drill for drilling rubber has lower drilling force and drilling temperature than standard twist drill. These analyses provide a theoretical basis for the application of multi-facet drill in fracture surgery.