项目组在前期开发中国第一套具备自主知识产权的五轴联动智能水刀控制系统过程中发现：基于平面的现有水射流加工控制模型只能在较小应用范围内保持精密切割，而通过手动动态控制射流空间运动轨迹，切割精度可显著提高。基于上述发现，本研究提出基于射流流形的复杂空间水射流动态加工性表征体系研究，拟重点研究材料宏观及微观特性对三相射流动力学的反演机理，建立基于材料特性的精确射流流形模型；进一步研究基于水射流切割断面非线性误差的射流动态去误差机理，建立复杂空间水射流动态去误差切割模型；研究复杂空间射流运动轨迹动态控制实现方法，建立复杂空间射流动态控制理论；最后，研究多维度信息优化控制方案，完善水射流精密加工性表征体系建立，实现行业加工精度提升。本研究有望将水射流精密加工厚度范围极大提高，从而为世界各国面临的迫在眉睫的新材料精密加工难题及我国制造业转型升级亟需解决的瓶颈难题提供一种有效解决方案。

In our last research program which is about developping a 5-axis smart waterjet machine, our research team found that, the cutting model built which was based on two dimensions only can cut parts accuratly when the thickness of the part is less than 50mm. However, if the waterjet cutting head is controlled dynamicly, the precision of the cutting can be improved greatly. Based on this observation, we prepare to do some research on representation system building of multidimensional space waterjet based on flow behavior. To finish this research program, some steps will be carried out. Firstly, how material characteristics affect on water jet flow behavior will be researched, and mathymatical model of jet flow behavior will be built. Secondly, how dynamic multimensional space jet acts on target material will be researched.Thirdly, how multidimensional space jet is controlled dynamicly will be researched. Forthly,how multidimensional information is controlled correctly will be researched. Based on the results of this research, precision cutting of abrasive waterjet is expected to get improvement greatly.