皮质骨超声振动辅助磨削力仿真与研究  

Simulation and research on ultrasonic vibration-assisted grinding of cortical bone

作　　者：朱玉莹 郑清春[1,2] 张春秋[1,2] 张善青[1,2] 王桂莲[1,2] 胡亚辉[1,2] ZHU Yuying;ZHENG Qingchun;ZHANG Chunqiu;ZHANG Shanqing;WANG Guilian;HU Yahui(Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control,Tianjing University of Technology,Tianjin 300384,China;National Demonstration Center for Experimental Mechanical and Electrical Engineering Education,Tianjing University of Technology,Tianjin 300384,China)

机构地区：[1]天津理工大学天津市先进机电系统设计与智能控制重点实验室,天津300384 [2]天津理工大学机电工程国家级实验教学示范中心,天津300384

出　　处：《天津理工大学学报》2025年第1期10-15,共6页Journal of Tianjin University of Technology

基　　金：国家自然科学基金(11672208,81741141);天津市科技特派员资助项目(22YDTPJC00400);中国交通教育研究会课题基金资助项目(JTZD20-14);骨植入物界面功能化与个性化研究企业重点实验室开放基金(SY-04-202301)。

摘　　要：在开颅手术中,磨削作为传统精密加工方法可以实现骨组织的高效切除。针对过大的磨削力容易造成骨裂纹、骨组织损伤这一问题,基于普通磨削与超声振动辅助磨削运动学方程,建立皮质骨超声振动辅助磨削有限元仿真模型,结合试验结果获得磨削参数和超声振动参数与磨削力的二次回归预测模型,研究磨削速度、磨削深度和超声振幅对磨削力的影响。结果表明:磨削力随着磨削速度与磨削深度的增加而增加;在选取的超声振幅范围内,随着超声振幅的增加,磨削力先减小后略有增大;合理地选择磨削参数可以有效降低磨削力。In the craniotomy,grinding as a conventional precision machining method can achieve efficient bone tissue removal.Aiming at the problem that excessive grinding force is easy to cause bone cracks and bone tissue damage,based on the kinematic equations of ordinary grinding and ultrasonic vibration-assisted grinding,a finite element simulation model of ultrasonic vibration-assisted cortical bone grinding was established.Combined with the experimental results,a quadratic regression prediction model of grinding parameters and ultrasonic vibration parameters on grinding force was obtained.The effects of grinding speed,grinding depth,and ultrasonic amplitude on grinding force were studied.The results showed that the grinding force increases with the increasing of grinding speed and depth.Within the selected ultrasonic amplitude range,the grinding force first decreases and then increases slightly as the ultrasonic amplitude increases.The reasonable selection of grinding parameters can effectively reduce the grinding force.

关 键 词：皮质骨磨削 超声振动 磨削力 响应面分析 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]