Decomposition of stiffness and friction tangential contact forces during periodic motion

被引：1

作者：

Feldman, Michael ^{[1
]}

Zimmerman, Yaron ^{[2
]}

Sheer, Sagi ^{[1
]}

Bucher, Izhak ^{[1
]}

机构：

[1] Technion, Fac Mech Engn, IL-3200003 Haifa, Israel

[2] Spectrum Engn Ltd, Hagefen 15 A, IL-3650315 Qiryat Tivon, Israel

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2017年 / 94卷

关键词：

Tangential contact motion; Stiffness force; Dissipative friction; Hilbert transform; Nonlinear vibration decomposition; MODEL STRUCTURE; HYSTERESIS; BEHAVIOR;

D O I：

10.1016/j.ymssp.2017.03.012

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The purpose of this paper is to introduce techniques used in experimental analysis and simulation of the internal resistance force in mechanical contact. We are presenting an idea and a method to separate the internal resistance into two force parts, the spring stiffness and the dissipative friction. This separation is based on the proven dependency for the projections of the phase angle between the displacement and acceleration of the periodic motion. By combining the Hilbert transform analysis with the phase relations of the simultaneously measured applied force and the vibration response we are able to estimate the nonlinear separated spring stiffness and dissipative friction force parts in the contact interference. Theoretical analysis and experimental measurements are presented as well as simulated verification results. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：400 / 414

页数：15

共 18 条

[1] Characterization of frictional hysteresis in ball-bearing guideways [J].