Inverse modeling approach for parametric frequency domain analysis of an electrohydraulic system

被引：8
|
作者：
Yoon, Yongsoon [1 ]
Sun, Zongxuan [2 ]
Du, Heng [3 ]
机构：
[1] Cummins Inc, Corp Res & Technol, Columbus, IN 47201 USA
[2] Univ Minnesota, Dept Mech Engn, 111 Church St SE, Minneapolis, MN 55455 USA
[3] Fuzhou Univ, Sch Mech & Automat Engn, Fuzhou 350008, Fujian, Peoples R China
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2019年 / 121卷
关键词：
Electrohydraulic systems; Nonlinear frequency domain analysis; Parametric analysis; Generalized frequency response function; MOTION CONTROL; IDENTIFICATION; SERVO;
D O I：
10.1016/j.ymssp.2018.11.041
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper presents parametric frequency domain analys.isf an electrohydraulic system, in particular, with respect to the hydraulic supply pressure. The supply pressure is a design parameter of significance such that it affects control bandwidth, load capability and system durability. However, intensive analysis on this parameter has not been reported yet due to the nonlinear dynamic features of an electrohydraulic system. In this paper, the inverse generalized frequency response functions are derived and used to conduct multidimensional Fourier analysis of the control input and to investigate its relation to the supply pressure. In addition, the hydraulic energy consumption is analyzed with respect to the supply pressure. The analysis reveals that the supply pressure is a critical design parameter that determines the degree of nonlinearity and trade-off between the control bandwidth and energy consumption. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：412 / 425
页数：14
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