Industry/University Cooeperative Research Center for Machine-Tool Systems - Machine-Tool Research Chatter Prevention Through Speed Variation

机床系统产学合作研究中心 - 通过变速防止机床颤振研究

• 批准号: 9523353
• 负责人: Shiv Kapoor
• 金额: $ 5万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-01 至 1998-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9523353&HistoricalAwards=false
• 关键词: Industry; University; Cooeperative; Research; Center

EEC-9523353 Kapoor 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.

EEC-9523353 Kapoor该奖项为密歇根大学制造业尺寸测量与控制工业/大学合作研究中心和伊利诺伊大学厄巴纳-香槟分校机床系统工业/大学合作研究中心之间的一个“TIE”项目提供资金。颤振限制了加工效率，影响了表面质量。它还会造成工件尺寸精度的损失，加速过早失效的切削失效。本研究旨在利用主轴变速(SSV)方法研究加工过程行为，并建立控制颤振的模型。在拟议的工作中，伊利诺伊大学厄巴纳-香槟分校将研究可变主轴速度轨迹参数与加工条件动态响应之间的关系，并制定基于稳态振动水平的速度选择准则。密歇根大学将开发和验证颤振模型，使用差分微分方程式来抑制通过主轴转速变化而产生的颤振。这将是一项为期两年的联合努力。本研究旨在结合每个方案的各自优势，整合现有技术，以合作的方式开发新的工具和方法来解决颤振抑制中的关键问题。