摘要
基于氧化锆生物陶瓷正交铣削试验数据,采用多元线性回归方程建立铣削力经验预测模型,为辅助支撑结构优化设计有限元模拟提供铣削力加载参考;结合生物陶瓷力学特性,通过有限元分析探索铣削力不同加载位置对辅助支撑应力应变的影响规律,校核支撑强度,为模型导入CAM系统后辅助支撑的设计提供优化及设计准则。理论分析和生物陶瓷修复体实际加工情况表明,该设计方法进行生物陶瓷铣削加工辅助支撑设计具有有效性和可行性,为提高生物陶瓷铣削效率提供了一种思路和方法。
The milling force model was established based on the orthogonal test data and the multiple linear regression equation of Zr O2 bioceramics which can inform the design of finite element simulation.According to the mechanical property of Zr O2 bioceramics and the finite element analysis of different auxiliary support positions,influence law of stress and strain distributing is analyzed and the strength was checked. Optimization and design criteria of auxiliary support could be provided after leading the model to CAM system. The theory analyses and machining practice of bioceramics restorations indicate that this method was effective and feasible on the design for auxiliary support of bioceramics and it could put forward an idea and method for improvement the efficiency of bioceramics milling.
出处
《人工晶体学报》
EI
CAS
CSCD
北大核心
2014年第12期3323-3329,共7页
Journal of Synthetic Crystals
基金
国家科技支撑计划(2012BAI07B04)
国家自然科学基金青年基金(51305206)
上海市科委部分地区院校能力建设项目(13160501000)
