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题名:
Study of improvement of measurement precision for roundness measuring instrument
作者: Song, Kang1; Liao, Jun Bi1; Lin, Chang Qing2; Cao, Xue Dong2; Yu, Yang1; Ji, Rui1
出版日期: 2014
会议名称: Applied Mechanics and Materials: Advances in Measurements and Information Technologies
会议日期: 2014
学科分类: Information technology - Leveling (machinery) - MATLAB - Newton-Raphson method
DOI: 10.4028/www.scientific.net/AMM.530-531.117
中文摘要: Based on the requirement of small errors in measuring roundness (cylindricity) error, a leveling methodology which using a dual-point vertical layout has been put forward and analyzed. According to the direction cosine of the axis of workpiece, the amount of leveling has been defined and calculated, which overcomes the problem brought by manual adjustment technology and forms theoretical bases of fast, accurate leveling and high precise measurement. The assessment of roundness (cylindricity) error is to search for a center (cylinder axis) which satisfies the minimum condition. Due to the reliance of initial solutions and relative slowness in terms of convergence precision and convergence rate when using Nelder-Mead simplex method, a combinative method of Quasi-Newton and N-M simplex method has been proposed which achieves a fast, accurate search for global optimums. With the proof of the simulation of classical testing functions using Matlab and the measured data, the convergence rate and precision will be enhanced effectively has been certified with the combination of both methods mentioned above which ensuring and improving the measuring precision of workpiece. © (2014) Trans Tech Publications, Switzerland.
英文摘要: Based on the requirement of small errors in measuring roundness (cylindricity) error, a leveling methodology which using a dual-point vertical layout has been put forward and analyzed. According to the direction cosine of the axis of workpiece, the amount of leveling has been defined and calculated, which overcomes the problem brought by manual adjustment technology and forms theoretical bases of fast, accurate leveling and high precise measurement. The assessment of roundness (cylindricity) error is to search for a center (cylinder axis) which satisfies the minimum condition. Due to the reliance of initial solutions and relative slowness in terms of convergence precision and convergence rate when using Nelder-Mead simplex method, a combinative method of Quasi-Newton and N-M simplex method has been proposed which achieves a fast, accurate search for global optimums. With the proof of the simulation of classical testing functions using Matlab and the measured data, the convergence rate and precision will be enhanced effectively has been certified with the combination of both methods mentioned above which ensuring and improving the measuring precision of workpiece. © (2014) Trans Tech Publications, Switzerland.
收录类别: Ei
语种: 英语
卷号: 530-531
ISSN号: 16609336
文章类型: 会议论文
页码: 117-126
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7927
Appears in Collections:质量处(质检中心)_会议论文

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作者单位: 1. Technology and Instruments for Measuring and Control Dept, School of Manufacturing Science and Engineering, Sichuan University, Chengdu, 610065, China
2. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, 610209, China

Recommended Citation:
Song, Kang,Liao, Jun Bi,Lin, Chang Qing,et al. Study of improvement of measurement precision for roundness measuring instrument[C]. 见:Applied Mechanics and Materials: Advances in Measurements and Information Technologies. 2014.
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