Thermal Analysis of a Ball-Screw System

摘要：

　　High speed ball-screw system has serious friction heat to form thermal expansion to each component.An analyzing model considering with contact deformation and thermal expansion is established in realizing positioning error for a high speed ball-screw system.A finite element model of nut is also built in calculating elongation of nut.Surface strain of nut is measured by strain gages in order to confirm with data obtained from finite element model.Temperature of nut and screw were also measured by thermal couples and are used in calculation of elongation by the use of linear elongation equation.The tendency of positioning error is well estimated by the analyzing model.The model can be used in feedback positioning control factor and develop precision high speed ball-screwsystem.

关键词： High speed Ball screw Thermal expansion Positioning Finite element

作者: Chin-Chung Wei Jeng-Haur Horng Jen-Fin Lin

作者单位: Department of Power Mechanical Engineering and Institute of Mechanical & Electro-Mechanical Engineer Department of Mechanical Engineering,National Cheng-Kung University,Taiwan

会议类型: 国际会议

会议名称: the 2012 International Conference on Manufacturing Engineering and Automation (2012年制造工程与自动化国际会议(ICMEA2012))

会议地点: 广州

会议语种:英文

页码: 818-826

在线出版日期: 2012-11-16（万方平台首次上网日期，不代表论文的发表时间）