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高速钻骨过程中切削力的仿真与实验研究 被引量:4

Computational simulation and experimental research on cutting force during high-speed bone drilling
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摘要 基于弹塑性有限元模型,实现高速钻骨时骨组织-器械交互状态的仿真;根据动物标本钻骨实验结果,通过优化方法实现模型损伤参数的快速辨识;结合有限元仿真和标本骨实验,研究高速钻骨过程中切削力随不同钻削参数的变化规律。研究结果表明:钻削轴向力仿真结果与实验结果较吻合,验证了损伤参数的有效性及有限元模型的适用性;手术中应该选择较小的进给量和更高的钻速以实现安全钻削。 A finite element model was constructed to simulate the interaction between bone tissue and device during high-speed bone drilling.Based on the result from in vitro drilling experiment and the optimization method,the damage parameter used in the finite element model was identified.Combining the finite element simulation and the in vitro experiment,variations of cutting force along with the changes in drilling parameters during the process of high-speed bone drilling were studied.The results show that simulation result of drilling axial force coincides with that of in vitro experiment,which validates the effectiveness of damage parameter and the applicability of finite element model;lower feeding rate and higher drilling speed should be adopted to ensure drilling safety in orthopedic surgery.
作者 张立斌 王宇 赵宏强 赵世佳 胡颖 ZHANG Libin;WANG Yu;ZHAO Hongqiang;ZHAO Shijia;HU Ying(College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China;Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,China;School of Mechanical Engineering and Automation,Harbin Institute of Technology,Shenzhen 518055,China)
出处 《中南大学学报(自然科学版)》 EI CAS CSCD 北大核心 2018年第9期2191-2196,共6页 Journal of Central South University:Science and Technology
基金 国家自然科学基金资助项目(61573336) 深圳市基础研究重点项目(JCYJ20160608153218487)
关键词 有限元方法 高速钻骨 损伤参数 优化方法 finite element method high-speed bone drilling damage parameter optimization method
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