基于复合多层切削模型的金刚石锯片锯切混凝土动态特征多尺度建模及分析

针对钢筋混凝土用薄圆板型金刚石锯片的户外锯切特点，以多尺度动态建模理论为基础，研究金刚石锯片锯切混凝土的最佳加工状态判定理论及加工工艺。运用材料性能、切削性能先进的测试、分析、仿真和实验手段，通过多尺度分析、复合材料学、多体动力学和切削理论的学科交叉分析研究，提出混凝土硬骨料及软骨料的单一切削模型-多层切削数值分析模型-切削状态的多尺度分析模型的关联分析技术，建立金刚石锯片锯切状态的判定理论与方法。提出金刚石锯片锯切混凝土的锯切性能评价方法，探索控制最佳加工状态的工艺方法，建立金刚石锯片锯切混凝土性能测试平台。揭示金刚石锯片锯切混凝土单一材料切削-多层材料切削-锯切状态的判定-锯切性能评价方法-加工工艺控制方法-加工质量及加工效率之间跨尺度关联关系，形成金刚石锯片锯切混凝土的加工工艺及工具设计方法和准则，为金刚石锯片干切混凝土高效高质高耐用度加工和刀具设计研究提供理论和应用依据。

Focusing on the characteristics of diamond saw blades outdoor,sawing reinforced concrete, this proposal will develop a decision theory under the best processing condition and processing technology based on Multi scale dynamic modeling theory. Using of material properties, advanced testing, analysis, simulation and experimental methods, the project plans to establish an association analysis technology of hard and soft aggregate concrete cutting models of single layer and multi-layers, and sawing state multi scale analysis model. The determining theory and method of diamond saw blades in sawing state will be established. The sawing concrete sawing performance evaluation method will be put forwarded, the process method of optimum processing condition will be explored, and the diamond saw blades test platform of sawing concrete performance will be established. Cross scale relationship between single material cutting-multilayer material cutting-sawing state decision-sawing performance evaluation method -sawing performance evaluation method-process control method- machining quality and the machining efficiency will be investigated. Process technology and tool design criterion of diamond saw blades sawing concrete will be formed. Therefore, researches will help to provide theoretical and practical basis for diamond saw blade sawing concrete with high durability, high efficiency, and high quality and for processing tool designing research.