Inverse modeling approach for parametric frequency domain analysis of an electrohydraulic system
| Autor: | Heng Du, Zongxuan Sun, Yongsoon Yoon |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0209 industrial biotechnology
Frequency response Computer science Mechanical Engineering Bandwidth (signal processing) Aerospace Engineering Inverse 02 engineering and technology Energy consumption 01 natural sciences Computer Science Applications Nonlinear system symbols.namesake 020901 industrial engineering & automation Control and Systems Engineering Control theory Fourier analysis Frequency domain 0103 physical sciences Signal Processing symbols 010301 acoustics Civil and Structural Engineering Parametric statistics |
| Zdroj: | Mechanical Systems and Signal Processing. 121:412-425 |
| ISSN: | 0888-3270 |
| DOI: | 10.1016/j.ymssp.2018.11.041 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect