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Author:

Cheng Qiang (Cheng Qiang.) | Xu Wenxiang (Xu Wenxiang.) | Cai Ligang (Cai Ligang.) | Liu Zhifeng (Liu Zhifeng.) | Yang Congbin (Yang Congbin.) | Zhao Yongsheng (Zhao Yongsheng.)

Indexed by:

incoPat

Abstract:

一种振动工况下螺栓松弛主要影响参数评定及其松弛缓减方法,包括如下步骤:(1)根据振动工况下螺栓松弛的影响参数,可选择载荷幅值、振动频率、初始紧固力矩作为三大试验影响因子;(2)通过三因素五水平的二次通用旋转组合,设计20组三大影响参数的不同数值组合进行试验;(3)根据二次通用旋转组合以及二次回归分析原理,有三因变量的螺栓夹紧力衰减率的目标函数;(4)根据20组三大影响参数的不同数值组合的试验结果,计算出目标函数的各项系数,得到二次回归模型;(5)为判断回归模型的可靠性,对试验结果进行方差分析,再对回归方程进行失拟项检验和统计量检验;(6)通过分析得到在振动工况下螺栓松弛的最主要影响参数以及各影响参数对螺栓夹紧力衰减的影响占比,并利用lingo优化三大影响参数并得到缓减螺栓夹紧力衰减的最佳值。

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Patent Info :

Type: 发明申请

Patent No.: WOCN19096264

Filing Date: 2019-07-17

Publication Date: 2020-12-03

Pub. No.: WO2020237800A1

Applicants: Beijing University Of Technology

Legal Status: 进入国家阶段-PCT有效期满

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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