Industry/University Cooperative Research Center for Dimen- sional Measurement and Control in Manufacturing - Machine- Tool Chatter Prevention Through Spindle Speed Variation

EEC-9526519镍 该奖项为密歇根大学制造业尺寸测量和控制工业/大学合作研究中心和伊利诺伊大学厄巴纳-尚潘分校机床系统工业/大学合作研究中心之间的“TIE”项目提供资金。 颤振不仅限制了加工生产率，而且影响了加工表面质量. 它也会导致工件尺寸精度的损失，并加速过早失效。 建议的研究是调查的过程行为和开发模型，以控制颤振，通过使用主轴转速变化（SSV）的方法。 在拟议的工作中，伊利诺伊大学厄巴纳-尚潘分校将调查可变主轴速度轨迹参数和加工条件的动态响应之间的关系，并开发基于稳态振动水平的速度选择标准。 密歇根大学将开发和验证颤振模型，使用差分微分方程来抑制颤振通过主轴速度变化。 这将是一项为期两年的共同努力。 本研究的目的是联合收割机的每个程序的个人优势，整合现有的技术，并开发新的工具和方法，以合作的方式来解决颤振抑制的关键问题。

EEC-9526519 Ni This award provides funding for a "TIE" project between the Industry/University Cooperative Research Center for Dimensional Measurement and Control in Manufacturing at the University of Michigan and the Industry/University Cooperative Research Center for Machine-Tool Systems at the University of Illinois at Urbana- Champaign. Chatter limits the machining productivity and affects the surface quality. It also causes loss of dimensional accuracy of the workpiece and accelerates the premature failure cutting failure. The proposed research is to investigate the process behavior and develop models to control chatters by using the Spindle Speed Variation (SSV) method. In the proposed work, the University of Illinois at Urbana - Champaign will investigate the relationships among the variable spindle speed trajectory parameters and the dynamics response of the machining condition, and develop the speed selection criterion based on the steady state vibration level. The University of Michigan will develop and validate chatter model using a difference-differential equation to suppress chatter via spindle speed variation. This will be a two-year joint effort. This research aims to combine the individual strengths of each program, integrated existing technologies, and develop new tools and methods in a cooperative manner to solve critical problems in chatter suppression.