TY - JOUR
T1 - Inverse modeling approach for parametric frequency domain analysis of an electrohydraulic system
AU - Yoon, Yongsoon
AU - Sun, Zongxuan
AU - Du, Heng
PY - 2019/4/15
Y1 - 2019/4/15
N2 - 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 multi-dimensional 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.
AB - 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 multi-dimensional 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.
KW - Electrohydraulic systems
KW - Generalized frequency response function
KW - Nonlinear frequency domain analysis
KW - Parametric analysis
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U2 - 10.1016/j.ymssp.2018.11.041
DO - 10.1016/j.ymssp.2018.11.041
M3 - Article
AN - SCOPUS:85057280005
SN - 0888-3270
VL - 121
SP - 412
EP - 425
JO - Mechanical Systems and Signal Processing
JF - Mechanical Systems and Signal Processing
ER -