常量(计算机编程)
滚珠丝杠
可靠性(半导体)
机械加工
时间常数
球(数学)
准确度和精密度
控制理论(社会学)
振幅
计算机科学
机械
数学
机械工程
统计
工程类
物理
数学分析
热力学
光学
电气工程
人工智能
功率(物理)
控制(管理)
螺母
程序设计语言
作者
Zhifeng Liu,Hang Yang,Lianming Hun,Baobao Qi,Zhiwen Lin,Chuanhai Chen
标识
DOI:10.1177/09544054221119915
摘要
A ball screw (BS) is a key functional component for precision machining equipment, medical instruments, and intelligent manufacturing production lines. The accuracy reliability of a ball screw plays a key role in the functioning of all such equipment. Since the operating conditions have time-dependent characteristics, the non-constant operating conditions affect the BS accuracy decay. In this paper, the numerical modeling and analysis of the BS accuracy decay are considered under non-constant operating conditions. The BS accuracy reliability under single and multiple non-constant operating conditions is investigated. The experimental findings on accuracy decay under non-constant operating conditions validate the proposed analysis. The average relative error of accuracy decay between the theoretical and the experimental findings is estimated at 10% (in the range of 10.15%–12.66%). The error is evaluated under the three different amplitudes operating conditions, including AL (non-constant axial load), FR (non-constant feed rate), and AL plus FR. The results show that the accuracy decay prediction model successfully predicts the BS accuracy reliability under non-constant operating conditions.
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