Analyzing of influencing factors on dynamic response characteristics of double closed-loop control digital hydraulic cylinder

A digital hydraulic cylinder that uses mechanical closed-loop feedback regulation to realize double closed-loop control of displacement and velocity is designed in this study. Based on the working principle, the transfer function model and AMESim simulation model of digital hydraulic cylinder were e...

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Bibliographic Details
Published in:Journal of Advanced Mechanical Design, Systems, and Manufacturing Systems, and Manufacturing, 2019, Vol.13(3), pp.JAMDSM0048-JAMDSM0048
Main Authors: XIA, Yimin, SHI, Yupeng, YUAN, Ye, ZHANG, Yumin, YAO, Zhiwei
Format: Article
Language:English
Subjects:
AMESim
Computer simulation
Cylinders
Displacement
Double closed-loop control digital hydraulic cylinder
Dynamic characteristics
Dynamic response
Dynamic response characteristic
Error analysis
Hydraulics
Performance tests
Pneumatics
Regression analysis
Standard regression analysis
Transfer function
Transfer functions
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Summary:A digital hydraulic cylinder that uses mechanical closed-loop feedback regulation to realize double closed-loop control of displacement and velocity is designed in this study. Based on the working principle, the transfer function model and AMESim simulation model of digital hydraulic cylinder were established. The influence of pre-opening distance of the four-way reversing valve, ball-screw lead, inner diameter, and load on the displacement error, adjustment time, overshoot was analyzed. The standard regression analysis about the results was carried out as well. The results show the pre-opening distance of the four-way reversing valve has the greatest influence on the dynamic response characteristics of double closed-loop control digital hydraulic cylinder, and three Pearson coefficients are all greater than 0.9. The non-inertial load has a certain influence on the displacement error of the digital hydraulic cylinder. The optimal value of the ball-screw lead and inner diameter which have less effect on the dynamic characteristics of the system are 10mm and 90mm, respectively. Furthermore, the performance tests of the digital hydraulic cylinder sample were carried out.
ISSN:1881-3054
1881-3054
DOI:10.1299/jamdsm.2019jamdsm0048