三维椭圆振动辅助切削装置设计与优化研究

宋云; 张臣; 卢明

doi:10.13433/j.cnki.1003-8728.2017.1012

三维椭圆振动辅助切削装置设计与优化研究

doi: 10.13433/j.cnki.1003-8728.2017.1012

1.
南京航空航天大学机电学院, 南京 210006

基金项目:

国家自然科学基金项目（51675277）、中央高校基本科研业务费专项资金项目（NS2016048）及研究生创新基地（实验室）开放基金项目（kfjj20150518）资助

详细信息

作者简介:
宋云(1991-),硕士研究生,研究方向为椭圆振动切削,songyun429@163.com

通讯作者:
张臣(联系人),副教授,博士,meeczhang@nuaa.com

计量
- 文章访问数: 162
- HTML全文浏览量: 13
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2016-06-20
- 刊出日期: 2017-10-05

Designing and Optimizing Three-dimensional Elliptical Vibration Assisted Cutting Device

1.
College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210006, China

摘要

摘要: 三维椭圆振动辅助切削（EVAC）是一种具有广阔应用前景的加工方法，三维EVAC能否在实际加工中表现出最佳性能，取决于三维EVAC装置的性能。目前已研制的三维EVAC装置存在产生椭圆轨迹形式单一、椭圆轨迹范围可调性差等问题，为此，本文对多种椭圆振动轨迹并存的三维EVAC装置进行了研究，从装置布局和尺寸优化方面探索了所设计装置的性能优化方法。首先采用三个相互垂直且结构形式相同的子链和柔性铰链放大结构的形式进行三维EVAC装置的设计，输出轨迹可调的三维椭圆振动，分析了产生三维椭圆振动轨迹；其次运用有限元方法对设计的装置进行了静力校核和动力瞬态分析，验证了刀尖轨迹多种输出方式；最后根据有限元分析的结果，从布局和尺寸方面建立三维EVAC装置的柔性铰链优化模型，对设计装置的尺寸参数和结构布局参数进行了分析和优化，得到装置最优参数。
- 柔性铰链 /
- 三维EAVC /
- 有限元仿真 /
- 参数优化
Abstract: The three-dimensional elliptical vibration assisted cutting (EVAC) device is a very potential manufacturing method with wide application prospect. The ability to obtain the best performance of the 3D EVAC is up to the performance of a 3D EVAC apparatus. The current 3D EVAC apparatus is limited by the output of a single elliptical trajectory and the narrow adjusting performance of the elliptical trajectory and so on. In order to improve the output performance of the 3D EVAC apparatus, this paper focuses on the generation of multiple elliptical vibration trajectories in the 3D EVAC apparatus and explores the method for optimizing the performances of the designed device such as layout and size. Firstly, the design of the 3D EVAC apparatus utilizes three structures perpendicular to each other and in the same form of the sub-chains and flexible hinges amplifier structure, the output track of adjustable 3D EVAC apparatus and the analysis of the 3D elliptical vibration trajectory. Secondly, the finite element method is used for static checking and transient dynamic analysis of the designed apparatus and verifies the trace output of the tool nose. Finally, according to the finite element analysis results, we analyze and optimize the size and layout parameters of the designed device by establishing the flexible hinge optimization model of the 3D EVAC, thus its optimal parameters are obtained.
- flexible hinge /
- 3D EVAC /
- finite element analysis /
- parameter optimization

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参考文献(16)

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